organic compounds
(E)-1,5-Diphenylpent-2-en-4-yn-1-one
aDepartment of Chemistry and Chemical Technology, Togliatti State University, 14 Belorusskaya St, Togliatti 445667, Russian Federation, and bX-Ray Structural Centre, A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov St, B-334, Moscow 119991, Russian Federation
*Correspondence e-mail: a.s.bunev@gmail.com
The title compound, C17H12O, has an E conformation about the C=C bond. The C—C≡C—C torsion angle is 7.7 (2)°, and the mean planes of the phenylethylenone [r.m.s. deviation = 0.059 (1) Å] and phenylacetylene [r.m.s. deviation = 0.023 (1) Å] fragments form a dihedral angle of 14.16 (7)°. In the crystal, weak C—H⋯O interactions link the molecules into zigzag chains propagated in [010].
Related literature
For the synthesis and properties of enynones, see: Toshima et al. (1999); Ohe et al. (2002); Miki et al. (2002); Kuroda et al. (2004); Casey & Strotman (2005). For the crystal structures of related compounds, see: König et al. (1995); Chen & Liu (2008); Lu et al. (2009).
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2005); cell SAINT (Bruker, 2001); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536813013044/cv5408sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536813013044/cv5408Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536813013044/cv5408Isup3.cml
A solution of sodium hydroxide (0.24 g, 6 mmol) in H2O (1 ml) was added dropwise over 15 min to a mixture of 3-phenylpropiolaldehyde (1.0 g, 8 mmol) and acetophenone (0.9 ml, 0.93 g, 8 mmol) in 50% EtOH (10 ml) cooled to 0°C. During the reaction, the temperature was not allowed to exceed 5 °C. The mixture was stirred for 10 h. The precipitated solid was filtered and crystallized from EtOH. Yield is 86%. The single-crystal of the product was obtained by slow crystallization from methanol. M.p. = 372–373 K. IR (KBr), ν/cm-1: 3063, 2191, 1661, 1597, 1580, 1337, 1308, 1254, 1211. 1H NMR (400 MHz, CDCl3, 303 K): δ = 7.13 (d, 1H, J = 15.6), 7.33–7.37 (m, 3H), 7.43 (d, 1H, J = 15.2), 7.47–7.53 (m, 4H), 7.55–7.57 (m, 1H), 7.96–7.99 (m, 2H). 13C NMR (100 MHz, CDCl3, 303 K): δ = 87.7, 99.3, 122.2, 125.1, 128.5, 128.5, 128.7, 129.4, 132.0, 133.0, 137.2, 133.2, 188.8. Anal. Calcd. for C17H12O: C, 87.90; H, 5.21. Found: C, 87.78; H, 5.29.
All hydrogen atoms were placed in the calculated positions with C—H = 0.95 Å and refined in the riding model with fixed isotropic displacement parameters [Uiso(H) = 1.2Ueq(C)].
cis- and trans-Enynones are important building blocks in organic synthesis, particularly, in total synthesis of natural products (Toshima et al., 1999), in reactions of conjugated addition (Kuroda et al., 2004; Casey & Strotman, 2005), in metal catalyzed furan formations via 2-furyl carbene complexes (Miki et al., 2002), and as substrate precursors in [3,3]-sigmatropic rearrangement (Ohe et al., 2002). In this work, we present the title compound, I, prepared by the condensation reaction of 3-phenylpropiolaldehyde with acetophenone at reduced temperature (0–5°C) (Fig. 1).
Compound I represents the E-isomer about the C2═C3 bond and adopts almost planar structure (Figure 2). The small folding of 14.16 (7)° is between the mean planes of the phenylethylenone (O1/C1/C2/C3/C6/C7/C8/C9/C10/C11, r.m.s. deviation = 0.059 (1) Å) and phenylacetylene (C3/C4/C5/C12/C13/C14/C15/C16/C17, r.m.s. deviation = 0.023 (1) Å) fragments. The C3—C4≡C5—C12 torsion angle is 7.7 (2)°, and the bond elongations observed within the C3—C4≡C5—C12 acetylene fragment (C3—C4 1.419 (3) Å, C5—C12 1.432 (2) Å, C4≡C5 1.201 (3) Å) are characteristic for compounds of this type (König et al., 1995; Chen & Liu, 2008; Lu et al., 2009).
In the crystal, the molecules of I form zigzag chains along the b axis by the weak intermolecular C—H···O hydrogen bonds (Table 1). The crystal packing of the chains is stacking along the a axis (Figure 3).
For the synthesis and properties of enynones, see: Toshima et al. (1999); Ohe et al. (2002); Miki et al. (2002); Kuroda et al. (2004); Casey & Strotman (2005). For the crystal structures of related compounds, see: König et al. (1995); Chen & Liu (2008); Lu et al. (2009).
Data collection: APEX2 (Bruker, 2005); cell
SAINT (Bruker, 2001); data reduction: SAINT (Bruker, 2001); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C17H12O | F(000) = 488 |
Mr = 232.27 | Dx = 1.261 Mg m−3 |
Orthorhombic, P212121 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 2940 reflections |
a = 5.4696 (4) Å | θ = 2.5–31.0° |
b = 13.7164 (10) Å | µ = 0.08 mm−1 |
c = 16.3117 (11) Å | T = 120 K |
V = 1223.76 (15) Å3 | Prism, yellow |
Z = 4 | 0.30 × 0.25 × 0.20 mm |
Bruker APEXII CCD diffractometer | 3576 independent reflections |
Radiation source: fine-focus sealed tube | 2987 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.058 |
φ and ω scans | θmax = 30.0°, θmin = 1.9° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | h = −7→7 |
Tmin = 0.977, Tmax = 0.985 | k = −19→19 |
15765 measured reflections | l = −22→22 |
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)] = 0.057 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.107 | H-atom parameters constrained |
S = 1.07 | w = 1/[σ2(Fo2) + (0.0338P)2 + 0.3124P] where P = (Fo2 + 2Fc2)/3 |
3576 reflections | (Δ/σ)max < 0.001 |
163 parameters | Δρmax = 0.20 e Å−3 |
0 restraints | Δρmin = −0.28 e Å−3 |
C17H12O | V = 1223.76 (15) Å3 |
Mr = 232.27 | Z = 4 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 5.4696 (4) Å | µ = 0.08 mm−1 |
b = 13.7164 (10) Å | T = 120 K |
c = 16.3117 (11) Å | 0.30 × 0.25 × 0.20 mm |
Bruker APEXII CCD diffractometer | 3576 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | 2987 reflections with I > 2σ(I) |
Tmin = 0.977, Tmax = 0.985 | Rint = 0.058 |
15765 measured reflections |
R[F2 > 2σ(F2)] = 0.057 | 0 restraints |
wR(F2) = 0.107 | H-atom parameters constrained |
S = 1.07 | Δρmax = 0.20 e Å−3 |
3576 reflections | Δρmin = −0.28 e Å−3 |
163 parameters |
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 | ||
O1 | 0.1245 (3) | 0.55925 (10) | 0.38879 (8) | 0.0335 (4) | |
C1 | 0.2582 (3) | 0.54777 (13) | 0.44784 (10) | 0.0206 (4) | |
C2 | 0.4701 (4) | 0.48088 (14) | 0.44289 (11) | 0.0256 (4) | |
H2 | 0.5833 | 0.4784 | 0.4870 | 0.031* | |
C3 | 0.5045 (3) | 0.42448 (13) | 0.37800 (11) | 0.0244 (4) | |
H3 | 0.3930 | 0.4310 | 0.3337 | 0.029* | |
C4 | 0.6951 (3) | 0.35500 (13) | 0.36950 (11) | 0.0236 (4) | |
C5 | 0.8456 (3) | 0.29185 (13) | 0.36230 (10) | 0.0220 (4) | |
C6 | 0.2084 (3) | 0.60079 (12) | 0.52645 (11) | 0.0186 (3) | |
C7 | −0.0018 (3) | 0.65863 (13) | 0.53149 (11) | 0.0229 (4) | |
H7 | −0.1086 | 0.6634 | 0.4857 | 0.027* | |
C8 | −0.0548 (3) | 0.70902 (13) | 0.60295 (11) | 0.0243 (4) | |
H8 | −0.1989 | 0.7474 | 0.6062 | 0.029* | |
C9 | 0.1022 (3) | 0.70358 (13) | 0.66981 (12) | 0.0252 (4) | |
H9 | 0.0661 | 0.7386 | 0.7186 | 0.030* | |
C10 | 0.3109 (4) | 0.64699 (14) | 0.66512 (12) | 0.0259 (4) | |
H10 | 0.4186 | 0.6434 | 0.7107 | 0.031* | |
C11 | 0.3639 (3) | 0.59521 (13) | 0.59370 (11) | 0.0210 (4) | |
H11 | 0.5069 | 0.5560 | 0.5910 | 0.025* | |
C12 | 1.0198 (3) | 0.21457 (12) | 0.35339 (10) | 0.0198 (4) | |
C13 | 1.2102 (4) | 0.20245 (14) | 0.40995 (11) | 0.0239 (4) | |
H13 | 1.2228 | 0.2451 | 0.4557 | 0.029* | |
C14 | 1.3797 (4) | 0.12875 (13) | 0.39951 (12) | 0.0265 (4) | |
H14 | 1.5079 | 0.1207 | 0.4382 | 0.032* | |
C15 | 1.3632 (4) | 0.06627 (13) | 0.33257 (12) | 0.0254 (4) | |
H15 | 1.4813 | 0.0162 | 0.3253 | 0.031* | |
C16 | 1.1752 (3) | 0.07688 (13) | 0.27652 (11) | 0.0240 (4) | |
H16 | 1.1632 | 0.0337 | 0.2312 | 0.029* | |
C17 | 1.0046 (3) | 0.15044 (13) | 0.28663 (10) | 0.0213 (4) | |
H17 | 0.8760 | 0.1576 | 0.2480 | 0.026* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0380 (8) | 0.0373 (8) | 0.0251 (7) | 0.0140 (7) | −0.0102 (6) | −0.0036 (6) |
C1 | 0.0223 (9) | 0.0184 (8) | 0.0211 (8) | −0.0014 (7) | 0.0001 (7) | 0.0016 (7) |
C2 | 0.0276 (10) | 0.0249 (9) | 0.0242 (9) | 0.0061 (8) | −0.0026 (8) | −0.0011 (8) |
C3 | 0.0264 (9) | 0.0247 (9) | 0.0222 (9) | 0.0025 (8) | 0.0001 (8) | 0.0028 (7) |
C4 | 0.0277 (9) | 0.0242 (9) | 0.0190 (8) | −0.0007 (8) | 0.0016 (8) | 0.0004 (7) |
C5 | 0.0261 (9) | 0.0226 (8) | 0.0174 (8) | −0.0030 (8) | 0.0037 (7) | −0.0017 (7) |
C6 | 0.0194 (8) | 0.0154 (8) | 0.0211 (8) | −0.0025 (7) | 0.0028 (7) | 0.0020 (6) |
C7 | 0.0219 (9) | 0.0209 (9) | 0.0258 (9) | 0.0018 (8) | −0.0007 (8) | 0.0035 (7) |
C8 | 0.0215 (9) | 0.0192 (9) | 0.0323 (10) | 0.0016 (7) | 0.0049 (8) | 0.0005 (8) |
C9 | 0.0268 (10) | 0.0209 (9) | 0.0278 (9) | −0.0029 (8) | 0.0050 (8) | −0.0056 (8) |
C10 | 0.0253 (9) | 0.0286 (9) | 0.0237 (9) | −0.0024 (8) | −0.0024 (8) | −0.0033 (8) |
C11 | 0.0178 (8) | 0.0208 (8) | 0.0246 (9) | 0.0013 (7) | 0.0005 (7) | 0.0001 (7) |
C12 | 0.0235 (9) | 0.0186 (8) | 0.0172 (8) | −0.0030 (7) | 0.0055 (7) | 0.0013 (6) |
C13 | 0.0280 (9) | 0.0243 (9) | 0.0194 (8) | −0.0031 (8) | −0.0001 (7) | 0.0000 (7) |
C14 | 0.0227 (9) | 0.0268 (10) | 0.0300 (10) | −0.0027 (8) | −0.0068 (8) | 0.0058 (8) |
C15 | 0.0221 (9) | 0.0223 (9) | 0.0319 (10) | 0.0031 (8) | 0.0027 (8) | 0.0020 (8) |
C16 | 0.0276 (10) | 0.0214 (9) | 0.0230 (9) | −0.0012 (8) | 0.0031 (8) | −0.0018 (7) |
C17 | 0.0218 (9) | 0.0229 (9) | 0.0193 (8) | −0.0015 (8) | −0.0002 (7) | 0.0021 (7) |
O1—C1 | 1.220 (2) | C9—H9 | 0.9500 |
C1—C2 | 1.480 (3) | C10—C11 | 1.395 (2) |
C1—C6 | 1.499 (2) | C10—H10 | 0.9500 |
C2—C3 | 1.324 (3) | C11—H11 | 0.9500 |
C2—H2 | 0.9500 | C12—C13 | 1.401 (2) |
C3—C4 | 1.419 (3) | C12—C17 | 1.402 (2) |
C3—H3 | 0.9500 | C13—C14 | 1.382 (3) |
C4—C5 | 1.201 (3) | C13—H13 | 0.9500 |
C5—C12 | 1.432 (2) | C14—C15 | 1.391 (3) |
C6—C11 | 1.390 (2) | C14—H14 | 0.9500 |
C6—C7 | 1.399 (2) | C15—C16 | 1.384 (3) |
C7—C8 | 1.386 (2) | C15—H15 | 0.9500 |
C7—H7 | 0.9500 | C16—C17 | 1.384 (3) |
C8—C9 | 1.390 (3) | C16—H16 | 0.9500 |
C8—H8 | 0.9500 | C17—H17 | 0.9500 |
C9—C10 | 1.383 (3) | ||
O1—C1—C2 | 120.42 (16) | C9—C10—H10 | 119.9 |
O1—C1—C6 | 120.26 (16) | C11—C10—H10 | 119.9 |
C2—C1—C6 | 119.33 (16) | C6—C11—C10 | 120.25 (17) |
C3—C2—C1 | 121.14 (17) | C6—C11—H11 | 119.9 |
C3—C2—H2 | 119.4 | C10—C11—H11 | 119.9 |
C1—C2—H2 | 119.4 | C13—C12—C17 | 118.73 (17) |
C2—C3—C4 | 125.09 (18) | C13—C12—C5 | 121.01 (16) |
C2—C3—H3 | 117.5 | C17—C12—C5 | 120.25 (16) |
C4—C3—H3 | 117.5 | C14—C13—C12 | 120.28 (17) |
C5—C4—C3 | 176.0 (2) | C14—C13—H13 | 119.9 |
C4—C5—C12 | 178.4 (2) | C12—C13—H13 | 119.9 |
C11—C6—C7 | 119.19 (16) | C13—C14—C15 | 120.25 (17) |
C11—C6—C1 | 122.47 (16) | C13—C14—H14 | 119.9 |
C7—C6—C1 | 118.34 (16) | C15—C14—H14 | 119.9 |
C8—C7—C6 | 120.27 (17) | C16—C15—C14 | 120.14 (18) |
C8—C7—H7 | 119.9 | C16—C15—H15 | 119.9 |
C6—C7—H7 | 119.9 | C14—C15—H15 | 119.9 |
C7—C8—C9 | 120.27 (17) | C15—C16—C17 | 119.92 (17) |
C7—C8—H8 | 119.9 | C15—C16—H16 | 120.0 |
C9—C8—H8 | 119.9 | C17—C16—H16 | 120.0 |
C10—C9—C8 | 119.78 (17) | C16—C17—C12 | 120.67 (17) |
C10—C9—H9 | 120.1 | C16—C17—H17 | 119.7 |
C8—C9—H9 | 120.1 | C12—C17—H17 | 119.7 |
C9—C10—C11 | 120.24 (18) | ||
O1—C1—C2—C3 | −7.3 (3) | C8—C9—C10—C11 | −0.2 (3) |
C6—C1—C2—C3 | 172.28 (18) | C7—C6—C11—C10 | −0.2 (3) |
C1—C2—C3—C4 | −176.86 (17) | C1—C6—C11—C10 | 179.16 (17) |
O1—C1—C6—C11 | −175.68 (18) | C9—C10—C11—C6 | 0.6 (3) |
C2—C1—C6—C11 | 4.8 (3) | C17—C12—C13—C14 | 0.3 (3) |
O1—C1—C6—C7 | 3.7 (3) | C5—C12—C13—C14 | −178.64 (17) |
C2—C1—C6—C7 | −175.85 (16) | C12—C13—C14—C15 | 0.3 (3) |
C3—C4—C5—C12 | 7.7 (2) | C13—C14—C15—C16 | −0.7 (3) |
C11—C6—C7—C8 | −0.5 (3) | C14—C15—C16—C17 | 0.7 (3) |
C1—C6—C7—C8 | −179.91 (17) | C15—C16—C17—C12 | −0.1 (3) |
C6—C7—C8—C9 | 0.9 (3) | C13—C12—C17—C16 | −0.3 (3) |
C7—C8—C9—C10 | −0.5 (3) | C5—C12—C17—C16 | 178.58 (16) |
D—H···A | D—H | H···A | D···A | D—H···A |
C16—H16···O1i | 0.95 | 2.54 | 3.165 (2) | 124 |
C17—H17···O1i | 0.95 | 2.61 | 3.202 (2) | 121 |
Symmetry code: (i) −x+1, y−1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C17H12O |
Mr | 232.27 |
Crystal system, space group | Orthorhombic, P212121 |
Temperature (K) | 120 |
a, b, c (Å) | 5.4696 (4), 13.7164 (10), 16.3117 (11) |
V (Å3) | 1223.76 (15) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.30 × 0.25 × 0.20 |
Data collection | |
Diffractometer | Bruker APEXII CCD |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2003) |
Tmin, Tmax | 0.977, 0.985 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 15765, 3576, 2987 |
Rint | 0.058 |
(sin θ/λ)max (Å−1) | 0.703 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.057, 0.107, 1.07 |
No. of reflections | 3576 |
No. of parameters | 163 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.20, −0.28 |
Computer programs: APEX2 (Bruker, 2005), SAINT (Bruker, 2001), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
C16—H16···O1i | 0.95 | 2.54 | 3.165 (2) | 124 |
C17—H17···O1i | 0.95 | 2.61 | 3.202 (2) | 121 |
Symmetry code: (i) −x+1, y−1/2, −z+1/2. |
Acknowledgements
The authors are grateful to the Ministry of Education and Science of the Russian Federation (State program No. 3.1168.2011).
References
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cis- and trans-Enynones are important building blocks in organic synthesis, particularly, in total synthesis of natural products (Toshima et al., 1999), in reactions of conjugated addition (Kuroda et al., 2004; Casey & Strotman, 2005), in metal catalyzed furan formations via 2-furyl carbene complexes (Miki et al., 2002), and as substrate precursors in [3,3]-sigmatropic rearrangement (Ohe et al., 2002). In this work, we present the title compound, I, prepared by the condensation reaction of 3-phenylpropiolaldehyde with acetophenone at reduced temperature (0–5°C) (Fig. 1).
Compound I represents the E-isomer about the C2═C3 bond and adopts almost planar structure (Figure 2). The small folding of 14.16 (7)° is between the mean planes of the phenylethylenone (O1/C1/C2/C3/C6/C7/C8/C9/C10/C11, r.m.s. deviation = 0.059 (1) Å) and phenylacetylene (C3/C4/C5/C12/C13/C14/C15/C16/C17, r.m.s. deviation = 0.023 (1) Å) fragments. The C3—C4≡C5—C12 torsion angle is 7.7 (2)°, and the bond elongations observed within the C3—C4≡C5—C12 acetylene fragment (C3—C4 1.419 (3) Å, C5—C12 1.432 (2) Å, C4≡C5 1.201 (3) Å) are characteristic for compounds of this type (König et al., 1995; Chen & Liu, 2008; Lu et al., 2009).
In the crystal, the molecules of I form zigzag chains along the b axis by the weak intermolecular C—H···O hydrogen bonds (Table 1). The crystal packing of the chains is stacking along the a axis (Figure 3).