Acta Crystallographica Section C

Crystal Structure Communications

Volume 58, Part 2 (February 2002)

Acta Cryst. (2002). C58, o108-o111 [doi:10.1107/S0108270101018200]

New electron-deficient chiral phosphines: (4R,5R)-1,3-bis(trifluoromethanesulfonyl)perhydro-1,3,2-benzodiazaphosphol-2-yl] substituted amines

D. Konya, C. Philouze, Y. Gimbert and A. E. Greene

Abstract: Three chiral electron-deficient phosphine ligands, [(4R,15R)-,3-bis(trifluoromethanesulfonyl)perhydro-1,3,2-benzodiazaphosphol-2-yl]diethylamine, C₁₂H₂₀F₆N₃O₄PS₂, (IIIa), [(4R,5R)-1,3-bis(trifluoromethanesulfonyl)perhydro-1,3,2-benzodiazaphosphol-2-yl]dimethylamine, C₁₀H₁₆F₆N₃O₄PS₂, (IIIb), and bis[(4R,5R)-1,3-bis(trifluoromethanesulfonyl)perhydro-1,3,2-benzodiazaphosphol-2-yl]methylamine, (IV), as the chloroform solvate, C₁₇H₂₃F₁₂N₅O₈P₂S₄·0.98CHCl₃, have been prepared from (1R,2R)-N,N'-bis(trifluoromethanesulfonyl)-1,2-cyclohexanediamine and diethyl phosphoramidous dichloride, dimethyl phosphoramidous dichloride or methyl imidodiphosphorus tetrachloride. The [bold pi] -acceptor abilities of these new types of ligands have been evaluated by X-ray determination of the P-N bond lengths; it has been found that the most promising ligand is the bis(phosphine) (IV).

Formula: C₁₂H₂₀F₆N₃O₄PS₂, C₁₀H₁₆F₆N₃O₄PS₂ and C₁₇H₂₃F₁₂N₅O₈P₂S₄·0.98CHCl₃

Online 23 January 2002


	Structure factor file (CIF format) (179.8 kbytes) Contains datablock IIIa

	Structure factor file (CIF format) (150.4 kbytes) Contains datablock IIIb

	Structure factor file (CIF format) (237.2 kbytes) Contains datablock IV

Notes:

To open or display or play some files, you may need to set your browser up to use the appropriate software. See the full list of file types for an explanation of the different file types and their related mime types and, where available links to sites from where the appropriate software may be obtained.

The download button will force most browsers to prompt for a file name to store the data on your hard disk.

Where possible, images are represented by thumbnails.