organic compounds
Trimethyl-3-methoxy-4-oxo-5-triphenylphosphoranylidenecyclopent-1-ene-1,2,3-tricarboxylate
aFaculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland, bNational Medicines Institute, Chełmska 30/34, 00-725 Warsaw, Poland, and cInstitute of Atomic Energy, 05-400 Otwock-Świerk, Poland
*Correspondence e-mail: czarnoz@chem.uw.edu.pl
The title compound, C30H27O8P (2), was formed as one of two products {(1) [Krawczyk et al. (2010). Acta Cryst. E66 (cv2752)] and (2)} in the reaction of dimethyl acetylenedicarboxylate with triphenylphosphine. The molecule of (2) consists of a five-membered carbocyclic ring. The P atom is a part of a triphenylphosphoranylidene substituent. In contrast to (1), the five-membered ring of (2) is planar, the r.m.s. deviation being only 0.009 (2) Å.
Related literature
For a detailed study of adduct formation from triarylphosphines and acetylenedicarboxylate, see: Waite et al. (1971). For related structures, see: Spek (1987); Thomas & Hamor (1993); Krawczyk et al. (2010).
Experimental
Crystal data
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Data collection: CrysAlis CCD (Oxford Diffraction, 2006); cell CrysAlis RED (Oxford Diffraction, 2006); data reduction: CrysAlis RED; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL-NT (Sheldrick, 2008); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536810037815/cv2753sup1.cif
contains datablocks paper, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810037815/cv2753Isup2.hkl
A mixture of acetylenedicarboxylate (0.5 g, 3,52 mmol) in 3 ml of dry toluene was placed in a two-neck round bottom flask, and cooled to -78°C (solid CO2/acetone bath) with stirring. The solution of triphenylphosphine (0.47 g, 1.80 mmol) in 3 ml of dry toluene was then added dropwise under argon during 20 min. The reaction was then left to reach slowly room temperature overnight. After evaporation of the solvent under reduced pressure, the remaining oil was dissolved in ethyl acetate and purified by λ = 365 nm), had Rf = 0.18 (ethyl acetate) and melted at 243–244°C [(Waite et al., 1971), m.p. 222–224°C]. The single-crystal of (2) was obtained by slow evaporation of its ethyl acetate/diethyl ether solution.
(Merck silica gel, 230 - 400 mesh, ethyl acetate, and then ethyl acetate/methanol 19:1 as eluent). Both products could be easily recrystallized from ethyl acetate/diethyl ether. The 2H-phosphole 1 (0.61 g, 63%) had Rf = 0.46 (ethyl acetate) and a melting point of 253–255°C (Waite, et al.1971). The second eluted product - (2) (0.27 g, 28%) - showed a green fluorescence in UV light (H atoms were placed in calcluated positions and were included in the
with Uiso(H) = 1.2Ueq(C) [1.5 in the case of methyl groups H atoms]. Isotropic displacement parameters for hydrogen atoms bonded to either oxygen or nitrogen atoms were refined independently.Trimethyl-3-methoxy-4-oxo-5-triphenylphosphoranylidenecyclopent-1-ene-1,2,3- tricarboxylate (2) is one of two 1:2 adducts formed as the minor compound in the reaction of triphenylphosphine and acetylenedicarboxylate, described already in 1971 (Waite et al.). By using dry toluene instead of diethyl ether, and by reducing the temperature of the reaction to -78%C we menaged to raise the yield of the reaction from 21% to 28%. λ5-phosphole-2,3,4,5-tetracarboxylate was also published recently (Krawczyk et al., 2010). In the present comunication we report on the of compound (2).
of the other compound - tetramethyl 1,1,2-triphenyl-2H-1In molecule (2) (Fig. 1), one of the acetyl groups at C4 is almost co-planar with the five-membered ring with a dihedral angle of 8.60 (3)° whereas all other acetyl and methoxy groups at C3 and C5 atoms are perpendicular to it with the dihedral angles of 86.31 (14), 84.95 (12) and 89.09 (9)°, respectively. The phenyl rings bonded to the phosphorous atom in (2) have similar conformations to that observed at room temperature for the parent triphenylphosphine in both polymorphic structures (Spek, 1987; Thomas & Hamor, 1993) assuring the lowest repulsion of the neighboring fragments.
For a detailed study of adduct formation from triarylphosphines and acetylenedicarboxylate, see: Waite et al. (1971). For related structures, see: Spek (1987); Thomas & Hamor (1993); Krawczyk et al. (2010).
Data collection: CrysAlis CCD (Oxford Diffraction, 2006); cell
CrysAlis RED (Oxford Diffraction, 2006); data reduction: CrysAlis RED (Oxford Diffraction, 2006); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL-NT (Sheldrick, 2008); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).Fig. 1. Molecular structure of (2) showing the atomi labelling and 30% probability displacement ellipsoids. |
C30H27O8P | F(000) = 1144 |
Mr = 546.49 | Dx = 1.314 Mg m−3 |
Monoclinic, P21/n | Cu Kα radiation, λ = 1.54178 Å |
a = 10.9220 (1) Å | Cell parameters from 8837 reflections |
b = 15.1215 (1) Å | θ = 2.6–70.3° |
c = 16.7423 (1) Å | µ = 1.31 mm−1 |
β = 92.145 (1)° | T = 293 K |
V = 2763.17 (4) Å3 | Parallelepiped, colourless |
Z = 4 | 0.37 × 0.18 × 0.07 mm |
Oxford Diffraction Xcalibur diffractometer with Ruby CCD | 5014 independent reflections |
Radiation source: fine-focus sealed tube | 3667 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.043 |
ο and φ scans | θmax = 70.4°, θmin = 3.9° |
Absorption correction: analytical (CrysAlis RED; Oxford Diffraction, 2006) | h = −12→13 |
Tmin = 0.717, Tmax = 0.926 | k = −17→18 |
24587 measured reflections | l = −20→19 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.047 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.129 | H-atom parameters constrained |
S = 1.01 | w = 1/[σ2(Fo2) + (0.0824P)2] where P = (Fo2 + 2Fc2)/3 |
5014 reflections | (Δ/σ)max < 0.001 |
352 parameters | Δρmax = 0.41 e Å−3 |
0 restraints | Δρmin = −0.21 e Å−3 |
C30H27O8P | V = 2763.17 (4) Å3 |
Mr = 546.49 | Z = 4 |
Monoclinic, P21/n | Cu Kα radiation |
a = 10.9220 (1) Å | µ = 1.31 mm−1 |
b = 15.1215 (1) Å | T = 293 K |
c = 16.7423 (1) Å | 0.37 × 0.18 × 0.07 mm |
β = 92.145 (1)° |
Oxford Diffraction Xcalibur diffractometer with Ruby CCD | 5014 independent reflections |
Absorption correction: analytical (CrysAlis RED; Oxford Diffraction, 2006) | 3667 reflections with I > 2σ(I) |
Tmin = 0.717, Tmax = 0.926 | Rint = 0.043 |
24587 measured reflections |
R[F2 > 2σ(F2)] = 0.047 | 0 restraints |
wR(F2) = 0.129 | H-atom parameters constrained |
S = 1.01 | Δρmax = 0.41 e Å−3 |
5014 reflections | Δρmin = −0.21 e Å−3 |
352 parameters |
Experimental. Analytical numeric absorption correction using a multifaceted crystal model based on expressions derived by R.C. Clark & J.S. Reid. (Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887–897) |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
P1 | 0.98130 (5) | 0.33555 (3) | 0.23236 (3) | 0.03465 (16) | |
O1 | 0.78889 (16) | 0.31389 (11) | 0.08918 (8) | 0.0499 (4) | |
O2 | 0.4783 (2) | 0.40415 (17) | 0.08401 (15) | 0.0969 (8) | |
O3 | 0.6135 (2) | 0.47924 (12) | 0.15999 (11) | 0.0676 (5) | |
O4 | 0.55002 (18) | 0.25150 (12) | 0.14528 (10) | 0.0587 (5) | |
O5 | 0.40520 (18) | 0.34126 (14) | 0.28230 (12) | 0.0676 (5) | |
O6 | 0.52975 (17) | 0.33087 (15) | 0.39062 (10) | 0.0690 (6) | |
O7 | 0.78341 (18) | 0.41525 (11) | 0.41526 (9) | 0.0579 (5) | |
O8 | 0.78057 (17) | 0.26709 (11) | 0.41634 (8) | 0.0519 (4) | |
C1 | 0.8225 (2) | 0.33213 (13) | 0.23123 (11) | 0.0344 (4) | |
C2 | 0.7528 (2) | 0.32327 (12) | 0.15769 (12) | 0.0373 (5) | |
C3 | 0.6140 (2) | 0.32578 (14) | 0.17661 (12) | 0.0396 (5) | |
C4 | 0.6183 (2) | 0.33365 (13) | 0.26716 (12) | 0.0392 (5) | |
C5 | 0.7364 (2) | 0.33655 (12) | 0.29464 (11) | 0.0342 (4) | |
C6 | 0.5565 (2) | 0.40552 (18) | 0.13463 (14) | 0.0541 (6) | |
C7 | 0.5738 (4) | 0.5607 (2) | 0.1224 (2) | 0.0985 (13) | |
H7A | 0.6202 | 0.6091 | 0.1450 | 0.148* | |
H7B | 0.4883 | 0.5698 | 0.1311 | 0.148* | |
H7C | 0.5865 | 0.5575 | 0.0660 | 0.148* | |
C8 | 0.5827 (4) | 0.17164 (18) | 0.18298 (19) | 0.0814 (10) | |
H8A | 0.5359 | 0.1242 | 0.1590 | 0.122* | |
H8B | 0.5661 | 0.1754 | 0.2388 | 0.122* | |
H8C | 0.6684 | 0.1607 | 0.1769 | 0.122* | |
C9 | 0.5071 (2) | 0.33579 (15) | 0.31160 (13) | 0.0440 (5) | |
C10 | 0.7700 (2) | 0.34554 (14) | 0.38231 (11) | 0.0390 (5) | |
C11 | 1.0463 (2) | 0.22934 (14) | 0.20702 (12) | 0.0419 (5) | |
C12 | 0.9720 (3) | 0.16379 (15) | 0.17490 (15) | 0.0522 (6) | |
H12 | 0.8905 | 0.1758 | 0.1611 | 0.063* | |
C13 | 1.0193 (3) | 0.07979 (18) | 0.16328 (18) | 0.0683 (8) | |
H13 | 0.9692 | 0.0355 | 0.1416 | 0.082* | |
C14 | 1.1395 (3) | 0.06166 (18) | 0.18364 (19) | 0.0720 (8) | |
H14 | 1.1704 | 0.0049 | 0.1770 | 0.086* | |
C15 | 1.2136 (3) | 0.1272 (2) | 0.2137 (2) | 0.0718 (8) | |
H15 | 1.2955 | 0.1150 | 0.2264 | 0.086* | |
C16 | 1.1685 (2) | 0.21181 (17) | 0.22555 (16) | 0.0558 (6) | |
H16 | 1.2197 | 0.2562 | 0.2457 | 0.067* | |
C17 | 0.4260 (3) | 0.3308 (3) | 0.4409 (2) | 0.0909 (11) | |
H17A | 0.4539 | 0.3273 | 0.4959 | 0.136* | |
H17B | 0.3749 | 0.2807 | 0.4280 | 0.136* | |
H17C | 0.3800 | 0.3842 | 0.4325 | 0.136* | |
C18 | 0.7974 (3) | 0.2668 (2) | 0.50317 (14) | 0.0760 (9) | |
H18A | 0.8041 | 0.2070 | 0.5219 | 0.114* | |
H18B | 0.7284 | 0.2948 | 0.5265 | 0.114* | |
H18C | 0.8708 | 0.2986 | 0.5182 | 0.114* | |
C21 | 1.0310 (2) | 0.42131 (14) | 0.16544 (11) | 0.0427 (5) | |
C22 | 1.1493 (3) | 0.42166 (18) | 0.13731 (15) | 0.0590 (7) | |
H22 | 1.2028 | 0.3754 | 0.1499 | 0.071* | |
C23 | 1.1869 (3) | 0.4911 (2) | 0.09070 (18) | 0.0762 (9) | |
H23 | 1.2657 | 0.4911 | 0.0714 | 0.091* | |
C24 | 1.1094 (3) | 0.5600 (2) | 0.07247 (17) | 0.0731 (9) | |
H24 | 1.1357 | 0.6063 | 0.0408 | 0.088* | |
C25 | 0.9937 (3) | 0.56107 (18) | 0.10071 (17) | 0.0685 (8) | |
H25 | 0.9417 | 0.6083 | 0.0887 | 0.082* | |
C26 | 0.9535 (3) | 0.49155 (16) | 0.14749 (14) | 0.0554 (6) | |
H26 | 0.8746 | 0.4923 | 0.1667 | 0.066* | |
C31 | 1.04400 (19) | 0.36215 (14) | 0.33050 (11) | 0.0362 (5) | |
C32 | 1.0687 (2) | 0.44928 (14) | 0.35069 (13) | 0.0446 (5) | |
H32 | 1.0548 | 0.4936 | 0.3129 | 0.053* | |
C33 | 1.1136 (2) | 0.47116 (18) | 0.42599 (14) | 0.0542 (6) | |
H33 | 1.1294 | 0.5299 | 0.4392 | 0.065* | |
C34 | 1.1349 (2) | 0.40574 (19) | 0.48145 (14) | 0.0566 (7) | |
H34 | 1.1658 | 0.4204 | 0.5323 | 0.068* | |
C35 | 1.1113 (3) | 0.31865 (19) | 0.46293 (14) | 0.0583 (7) | |
H35 | 1.1263 | 0.2749 | 0.5011 | 0.070* | |
C36 | 1.0653 (2) | 0.29617 (16) | 0.38761 (13) | 0.0469 (5) | |
H36 | 1.0486 | 0.2374 | 0.3751 | 0.056* |
U11 | U22 | U33 | U12 | U13 | U23 | |
P1 | 0.0370 (3) | 0.0358 (3) | 0.0312 (3) | −0.0019 (2) | 0.0013 (2) | −0.00179 (19) |
O1 | 0.0546 (11) | 0.0653 (10) | 0.0298 (7) | −0.0056 (8) | 0.0028 (7) | −0.0040 (6) |
O2 | 0.0973 (19) | 0.1003 (17) | 0.0891 (15) | −0.0024 (14) | −0.0496 (15) | 0.0148 (13) |
O3 | 0.0841 (15) | 0.0491 (10) | 0.0682 (11) | 0.0071 (9) | −0.0154 (10) | 0.0070 (8) |
O4 | 0.0622 (12) | 0.0619 (10) | 0.0516 (9) | −0.0204 (9) | −0.0027 (8) | −0.0095 (7) |
O5 | 0.0404 (11) | 0.0935 (14) | 0.0688 (11) | −0.0029 (10) | −0.0008 (9) | −0.0047 (10) |
O6 | 0.0470 (11) | 0.1185 (16) | 0.0423 (9) | 0.0043 (11) | 0.0120 (8) | 0.0006 (9) |
O7 | 0.0722 (13) | 0.0582 (10) | 0.0432 (8) | −0.0052 (9) | −0.0007 (8) | −0.0150 (7) |
O8 | 0.0619 (12) | 0.0585 (9) | 0.0349 (7) | 0.0014 (8) | −0.0024 (7) | 0.0075 (7) |
C1 | 0.0373 (12) | 0.0367 (10) | 0.0291 (9) | −0.0007 (9) | −0.0006 (8) | −0.0021 (7) |
C2 | 0.0421 (12) | 0.0354 (10) | 0.0342 (10) | −0.0051 (9) | −0.0023 (9) | −0.0002 (8) |
C3 | 0.0385 (12) | 0.0473 (11) | 0.0327 (10) | −0.0073 (10) | −0.0048 (9) | −0.0029 (8) |
C4 | 0.0399 (13) | 0.0415 (11) | 0.0360 (10) | −0.0016 (10) | 0.0006 (9) | −0.0009 (8) |
C5 | 0.0375 (12) | 0.0326 (9) | 0.0323 (9) | −0.0016 (9) | −0.0009 (9) | −0.0021 (7) |
C6 | 0.0502 (16) | 0.0706 (17) | 0.0405 (12) | 0.0056 (13) | −0.0100 (11) | 0.0057 (11) |
C7 | 0.145 (4) | 0.0617 (18) | 0.088 (2) | 0.022 (2) | −0.009 (2) | 0.0175 (16) |
C8 | 0.120 (3) | 0.0521 (16) | 0.0733 (18) | −0.0230 (17) | 0.0140 (19) | −0.0109 (13) |
C9 | 0.0382 (13) | 0.0468 (12) | 0.0469 (12) | −0.0011 (10) | 0.0004 (10) | −0.0039 (9) |
C10 | 0.0378 (12) | 0.0474 (12) | 0.0316 (10) | 0.0003 (10) | 0.0005 (9) | −0.0027 (9) |
C11 | 0.0453 (14) | 0.0412 (11) | 0.0398 (10) | 0.0030 (10) | 0.0077 (10) | −0.0050 (8) |
C12 | 0.0517 (15) | 0.0456 (12) | 0.0594 (14) | 0.0004 (11) | 0.0013 (12) | −0.0117 (10) |
C13 | 0.073 (2) | 0.0461 (14) | 0.0859 (19) | −0.0030 (14) | 0.0050 (16) | −0.0171 (13) |
C14 | 0.076 (2) | 0.0473 (14) | 0.094 (2) | 0.0142 (14) | 0.0189 (17) | −0.0128 (13) |
C15 | 0.0529 (17) | 0.0661 (17) | 0.097 (2) | 0.0155 (15) | 0.0097 (15) | −0.0092 (15) |
C16 | 0.0432 (15) | 0.0530 (14) | 0.0713 (16) | 0.0022 (12) | 0.0050 (12) | −0.0120 (12) |
C17 | 0.070 (2) | 0.136 (3) | 0.0689 (19) | 0.002 (2) | 0.0368 (17) | 0.0042 (19) |
C18 | 0.094 (3) | 0.098 (2) | 0.0358 (12) | 0.0006 (19) | −0.0035 (14) | 0.0162 (13) |
C21 | 0.0521 (15) | 0.0436 (11) | 0.0325 (10) | −0.0067 (10) | 0.0022 (10) | 0.0006 (8) |
C22 | 0.0573 (17) | 0.0634 (15) | 0.0572 (14) | −0.0048 (13) | 0.0148 (12) | 0.0041 (12) |
C23 | 0.077 (2) | 0.084 (2) | 0.0702 (18) | −0.0189 (18) | 0.0276 (16) | 0.0059 (15) |
C24 | 0.095 (3) | 0.0680 (18) | 0.0565 (15) | −0.0271 (17) | 0.0095 (16) | 0.0160 (13) |
C25 | 0.086 (2) | 0.0552 (15) | 0.0634 (16) | −0.0090 (15) | −0.0081 (16) | 0.0184 (12) |
C26 | 0.0581 (17) | 0.0534 (14) | 0.0544 (14) | −0.0054 (12) | −0.0013 (12) | 0.0105 (11) |
C31 | 0.0326 (11) | 0.0422 (10) | 0.0337 (9) | −0.0007 (9) | 0.0004 (9) | −0.0013 (8) |
C32 | 0.0487 (14) | 0.0420 (11) | 0.0429 (11) | −0.0054 (10) | 0.0002 (10) | −0.0030 (9) |
C33 | 0.0557 (16) | 0.0598 (14) | 0.0472 (13) | −0.0084 (12) | 0.0027 (11) | −0.0156 (11) |
C34 | 0.0478 (15) | 0.0851 (18) | 0.0366 (11) | −0.0052 (13) | −0.0011 (11) | −0.0119 (11) |
C35 | 0.0570 (17) | 0.0771 (18) | 0.0405 (12) | 0.0070 (14) | −0.0010 (11) | 0.0122 (11) |
C36 | 0.0513 (15) | 0.0487 (12) | 0.0405 (11) | −0.0028 (11) | −0.0022 (10) | 0.0032 (9) |
P1—C1 | 1.734 (2) | C13—H13 | 0.9300 |
P1—C31 | 1.802 (2) | C14—C15 | 1.363 (4) |
P1—C21 | 1.810 (2) | C14—H14 | 0.9300 |
P1—C11 | 1.813 (2) | C15—C16 | 1.389 (4) |
O1—C2 | 1.235 (2) | C15—H15 | 0.9300 |
O2—C6 | 1.181 (3) | C16—H16 | 0.9300 |
O3—C6 | 1.338 (3) | C17—H17A | 0.9600 |
O3—C7 | 1.443 (3) | C17—H17B | 0.9600 |
O4—C8 | 1.403 (4) | C17—H17C | 0.9600 |
O4—C3 | 1.413 (3) | C18—H18A | 0.9600 |
O5—C9 | 1.202 (3) | C18—H18B | 0.9600 |
O6—C9 | 1.339 (3) | C18—H18C | 0.9600 |
O6—C17 | 1.437 (3) | C21—C26 | 1.384 (4) |
O7—C10 | 1.196 (3) | C21—C22 | 1.393 (4) |
O8—C10 | 1.319 (3) | C22—C23 | 1.380 (4) |
O8—C18 | 1.458 (3) | C22—H22 | 0.9300 |
C1—C2 | 1.430 (3) | C23—C24 | 1.370 (5) |
C1—C5 | 1.446 (3) | C23—H23 | 0.9300 |
C2—C3 | 1.561 (3) | C24—C25 | 1.366 (5) |
C3—C4 | 1.520 (3) | C24—H24 | 0.9300 |
C3—C6 | 1.519 (3) | C25—C26 | 1.392 (4) |
C4—C5 | 1.355 (3) | C25—H25 | 0.9300 |
C4—C9 | 1.448 (3) | C26—H26 | 0.9300 |
C5—C10 | 1.506 (3) | C31—C32 | 1.384 (3) |
C7—H7A | 0.9600 | C31—C36 | 1.395 (3) |
C7—H7B | 0.9600 | C32—C33 | 1.376 (3) |
C7—H7C | 0.9600 | C32—H32 | 0.9300 |
C8—H8A | 0.9600 | C33—C34 | 1.371 (4) |
C8—H8B | 0.9600 | C33—H33 | 0.9300 |
C8—H8C | 0.9600 | C34—C35 | 1.375 (4) |
C11—C12 | 1.378 (3) | C34—H34 | 0.9300 |
C11—C16 | 1.384 (3) | C35—C36 | 1.382 (3) |
C12—C13 | 1.388 (4) | C35—H35 | 0.9300 |
C12—H12 | 0.9300 | C36—H36 | 0.9300 |
C13—C14 | 1.372 (4) | ||
C1—P1—C31 | 111.24 (9) | C15—C14—C13 | 119.7 (3) |
C1—P1—C21 | 109.71 (10) | C15—C14—H14 | 120.1 |
C31—P1—C21 | 106.98 (10) | C13—C14—H14 | 120.1 |
C1—P1—C11 | 111.81 (10) | C14—C15—C16 | 120.9 (3) |
C31—P1—C11 | 105.80 (10) | C14—C15—H15 | 119.6 |
C21—P1—C11 | 111.15 (10) | C16—C15—H15 | 119.6 |
C6—O3—C7 | 116.4 (2) | C11—C16—C15 | 119.3 (2) |
C8—O4—C3 | 113.8 (2) | C11—C16—H16 | 120.4 |
C9—O6—C17 | 117.3 (2) | C15—C16—H16 | 120.4 |
C10—O8—C18 | 116.02 (19) | O6—C17—H17A | 109.5 |
C2—C1—C5 | 107.24 (18) | O6—C17—H17B | 109.5 |
C2—C1—P1 | 120.83 (15) | H17A—C17—H17B | 109.5 |
C5—C1—P1 | 131.93 (15) | O6—C17—H17C | 109.5 |
O1—C2—C1 | 129.2 (2) | H17A—C17—H17C | 109.5 |
O1—C2—C3 | 122.51 (19) | H17B—C17—H17C | 109.5 |
C1—C2—C3 | 108.26 (16) | O8—C18—H18A | 109.5 |
O4—C3—C4 | 115.39 (17) | O8—C18—H18B | 109.5 |
O4—C3—C6 | 105.61 (18) | H18A—C18—H18B | 109.5 |
C4—C3—C6 | 113.33 (18) | O8—C18—H18C | 109.5 |
O4—C3—C2 | 112.08 (17) | H18A—C18—H18C | 109.5 |
C4—C3—C2 | 102.15 (17) | H18B—C18—H18C | 109.5 |
C6—C3—C2 | 108.24 (18) | C26—C21—C22 | 119.4 (2) |
C5—C4—C9 | 129.16 (19) | C26—C21—P1 | 119.29 (18) |
C5—C4—C3 | 109.55 (18) | C22—C21—P1 | 121.04 (19) |
C9—C4—C3 | 121.3 (2) | C23—C22—C21 | 119.6 (3) |
C4—C5—C1 | 112.75 (17) | C23—C22—H22 | 120.2 |
C4—C5—C10 | 121.88 (18) | C21—C22—H22 | 120.2 |
C1—C5—C10 | 125.35 (19) | C24—C23—C22 | 120.7 (3) |
O2—C6—O3 | 123.9 (3) | C24—C23—H23 | 119.6 |
O2—C6—C3 | 126.4 (3) | C22—C23—H23 | 119.6 |
O3—C6—C3 | 109.6 (2) | C25—C24—C23 | 120.2 (3) |
O3—C7—H7A | 109.5 | C25—C24—H24 | 119.9 |
O3—C7—H7B | 109.5 | C23—C24—H24 | 119.9 |
H7A—C7—H7B | 109.5 | C24—C25—C26 | 120.1 (3) |
O3—C7—H7C | 109.5 | C24—C25—H25 | 120.0 |
H7A—C7—H7C | 109.5 | C26—C25—H25 | 120.0 |
H7B—C7—H7C | 109.5 | C21—C26—C25 | 119.9 (3) |
O4—C8—H8A | 109.5 | C21—C26—H26 | 120.1 |
O4—C8—H8B | 109.5 | C25—C26—H26 | 120.1 |
H8A—C8—H8B | 109.5 | C32—C31—C36 | 119.16 (19) |
O4—C8—H8C | 109.5 | C32—C31—P1 | 119.95 (16) |
H8A—C8—H8C | 109.5 | C36—C31—P1 | 120.87 (16) |
H8B—C8—H8C | 109.5 | C33—C32—C31 | 120.8 (2) |
O5—C9—O6 | 122.8 (2) | C33—C32—H32 | 119.6 |
O5—C9—C4 | 125.0 (2) | C31—C32—H32 | 119.6 |
O6—C9—C4 | 112.2 (2) | C34—C33—C32 | 119.5 (2) |
O7—C10—O8 | 125.88 (19) | C34—C33—H33 | 120.2 |
O7—C10—C5 | 123.38 (19) | C32—C33—H33 | 120.2 |
O8—C10—C5 | 110.73 (17) | C33—C34—C35 | 120.8 (2) |
C12—C11—C16 | 119.9 (2) | C33—C34—H34 | 119.6 |
C12—C11—P1 | 119.90 (19) | C35—C34—H34 | 119.6 |
C16—C11—P1 | 120.01 (17) | C34—C35—C36 | 120.0 (2) |
C11—C12—C13 | 119.8 (3) | C34—C35—H35 | 120.0 |
C11—C12—H12 | 120.1 | C36—C35—H35 | 120.0 |
C13—C12—H12 | 120.1 | C35—C36—C31 | 119.7 (2) |
C14—C13—C12 | 120.4 (3) | C35—C36—H36 | 120.2 |
C14—C13—H13 | 119.8 | C31—C36—H36 | 120.2 |
C12—C13—H13 | 119.8 | ||
C31—P1—C1—C2 | 172.06 (15) | C18—O8—C10—C5 | −172.4 (2) |
C21—P1—C1—C2 | 53.89 (18) | C4—C5—C10—O7 | −89.4 (3) |
C11—P1—C1—C2 | −69.89 (18) | C1—C5—C10—O7 | 89.1 (3) |
C31—P1—C1—C5 | −8.1 (2) | C4—C5—C10—O8 | 89.8 (2) |
C21—P1—C1—C5 | −126.25 (19) | C1—C5—C10—O8 | −91.7 (2) |
C11—P1—C1—C5 | 110.0 (2) | C1—P1—C11—C12 | 12.7 (2) |
C5—C1—C2—O1 | −177.0 (2) | C31—P1—C11—C12 | 133.97 (19) |
P1—C1—C2—O1 | 2.9 (3) | C21—P1—C11—C12 | −110.25 (19) |
C5—C1—C2—C3 | 2.1 (2) | C1—P1—C11—C16 | −162.32 (18) |
P1—C1—C2—C3 | −177.97 (14) | C31—P1—C11—C16 | −41.1 (2) |
C8—O4—C3—C4 | −48.1 (3) | C21—P1—C11—C16 | 74.7 (2) |
C8—O4—C3—C6 | −174.1 (2) | C16—C11—C12—C13 | 1.7 (4) |
C8—O4—C3—C2 | 68.3 (3) | P1—C11—C12—C13 | −173.3 (2) |
O1—C2—C3—O4 | 53.3 (3) | C11—C12—C13—C14 | 0.1 (4) |
C1—C2—C3—O4 | −125.94 (18) | C12—C13—C14—C15 | −1.6 (5) |
O1—C2—C3—C4 | 177.36 (18) | C13—C14—C15—C16 | 1.3 (5) |
C1—C2—C3—C4 | −1.8 (2) | C12—C11—C16—C15 | −2.0 (4) |
O1—C2—C3—C6 | −62.8 (2) | P1—C11—C16—C15 | 173.1 (2) |
C1—C2—C3—C6 | 118.00 (19) | C14—C15—C16—C11 | 0.4 (4) |
O4—C3—C4—C5 | 122.7 (2) | C1—P1—C21—C26 | 24.4 (2) |
C6—C3—C4—C5 | −115.4 (2) | C31—P1—C21—C26 | −96.3 (2) |
C2—C3—C4—C5 | 0.8 (2) | C11—P1—C21—C26 | 148.61 (18) |
O4—C3—C4—C9 | −56.5 (3) | C1—P1—C21—C22 | −161.12 (19) |
C6—C3—C4—C9 | 65.5 (3) | C31—P1—C21—C22 | 78.1 (2) |
C2—C3—C4—C9 | −178.30 (18) | C11—P1—C21—C22 | −36.9 (2) |
C9—C4—C5—C1 | 179.5 (2) | C26—C21—C22—C23 | −1.3 (4) |
C3—C4—C5—C1 | 0.5 (2) | P1—C21—C22—C23 | −175.7 (2) |
C9—C4—C5—C10 | −1.8 (3) | C21—C22—C23—C24 | 0.6 (5) |
C3—C4—C5—C10 | 179.16 (17) | C22—C23—C24—C25 | 0.3 (5) |
C2—C1—C5—C4 | −1.7 (2) | C23—C24—C25—C26 | −0.7 (5) |
P1—C1—C5—C4 | 178.44 (16) | C22—C21—C26—C25 | 0.9 (4) |
C2—C1—C5—C10 | 179.66 (18) | P1—C21—C26—C25 | 175.5 (2) |
P1—C1—C5—C10 | −0.2 (3) | C24—C25—C26—C21 | 0.0 (4) |
C7—O3—C6—O2 | 0.6 (4) | C1—P1—C31—C32 | −92.5 (2) |
C7—O3—C6—C3 | 176.8 (3) | C21—P1—C31—C32 | 27.3 (2) |
O4—C3—C6—O2 | −2.9 (4) | C11—P1—C31—C32 | 145.84 (19) |
C4—C3—C6—O2 | −130.1 (3) | C1—P1—C31—C36 | 85.8 (2) |
C2—C3—C6—O2 | 117.3 (3) | C21—P1—C31—C36 | −154.43 (19) |
O4—C3—C6—O3 | −178.97 (19) | C11—P1—C31—C36 | −35.8 (2) |
C4—C3—C6—O3 | 53.8 (3) | C36—C31—C32—C33 | 0.0 (4) |
C2—C3—C6—O3 | −58.8 (2) | P1—C31—C32—C33 | 178.32 (18) |
C17—O6—C9—O5 | 1.1 (4) | C31—C32—C33—C34 | 0.5 (4) |
C17—O6—C9—C4 | −178.9 (3) | C32—C33—C34—C35 | −0.4 (4) |
C5—C4—C9—O5 | 172.6 (2) | C33—C34—C35—C36 | −0.1 (4) |
C3—C4—C9—O5 | −8.4 (3) | C34—C35—C36—C31 | 0.5 (4) |
C5—C4—C9—O6 | −7.4 (3) | C32—C31—C36—C35 | −0.5 (4) |
C3—C4—C9—O6 | 171.55 (19) | P1—C31—C36—C35 | −178.79 (19) |
C18—O8—C10—O7 | 6.8 (4) |
Experimental details
Crystal data | |
Chemical formula | C30H27O8P |
Mr | 546.49 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 293 |
a, b, c (Å) | 10.9220 (1), 15.1215 (1), 16.7423 (1) |
β (°) | 92.145 (1) |
V (Å3) | 2763.17 (4) |
Z | 4 |
Radiation type | Cu Kα |
µ (mm−1) | 1.31 |
Crystal size (mm) | 0.37 × 0.18 × 0.07 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur diffractometer with Ruby CCD |
Absorption correction | Analytical (CrysAlis RED; Oxford Diffraction, 2006) |
Tmin, Tmax | 0.717, 0.926 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 24587, 5014, 3667 |
Rint | 0.043 |
(sin θ/λ)max (Å−1) | 0.611 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.047, 0.129, 1.01 |
No. of reflections | 5014 |
No. of parameters | 352 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.41, −0.21 |
Computer programs: CrysAlis CCD (Oxford Diffraction, 2006), CrysAlis RED (Oxford Diffraction, 2006), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL-NT (Sheldrick, 2008).
Acknowledgements
The authors thank the Polish Ministry of Science and Higher Education for financial support (grant No. N204 030636).
References
Krawczyk, K. K., Wojtasiewicz, K., Maurin, J. K., Gronowska, E. & Czarnocki, Z. (2010). Acta Cryst. E66, o2791. Web of Science CSD CrossRef IUCr Journals Google Scholar
Oxford Diffraction (2006). CrysAlis CCD and CrysAlis RED. Oxford Diffraction Ltd, Abingdon, England. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (1987). Acta Cryst. C43, 1233–1235. CSD CrossRef CAS IUCr Journals Google Scholar
Thomas, J. A. & Hamor, T. A. (1993). Acta Cryst. C49, 355–357. CSD CrossRef CAS IUCr Journals Google Scholar
Waite, N. E., Tebby, J. C., Ward, R. S., Shaw, M. A. & Williams, D. H. (1971). J. Chem. Soc. C, pp. 1620–1622. Google Scholar
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Trimethyl-3-methoxy-4-oxo-5-triphenylphosphoranylidenecyclopent-1-ene-1,2,3- tricarboxylate (2) is one of two 1:2 adducts formed as the minor compound in the reaction of triphenylphosphine and acetylenedicarboxylate, described already in 1971 (Waite et al.). By using dry toluene instead of diethyl ether, and by reducing the temperature of the reaction to -78%C we menaged to raise the yield of the reaction from 21% to 28%. Crystal structure of the other compound - tetramethyl 1,1,2-triphenyl-2H-1λ5-phosphole-2,3,4,5-tetracarboxylate was also published recently (Krawczyk et al., 2010). In the present comunication we report on the crystal structure of compound (2).
In molecule (2) (Fig. 1), one of the acetyl groups at C4 is almost co-planar with the five-membered ring with a dihedral angle of 8.60 (3)° whereas all other acetyl and methoxy groups at C3 and C5 atoms are perpendicular to it with the dihedral angles of 86.31 (14), 84.95 (12) and 89.09 (9)°, respectively. The phenyl rings bonded to the phosphorous atom in (2) have similar conformations to that observed at room temperature for the parent triphenylphosphine in both polymorphic structures (Spek, 1987; Thomas & Hamor, 1993) assuring the lowest repulsion of the neighboring fragments.