Crystal structure and NMR spectra of 3-carboethoxy-3-triphenylphosphoranylidene-2-oxopropane triphenyl phosphonium bromide chloroform solvate

Authors
Barahona, P Manriquez, V Araya-Maturana, R Castaneda, F Delgado-Castro, T Wittke, O
Citation
P. Barahona et al., Crystal structure and NMR spectra of 3-carboethoxy-3-triphenylphosphoranylidene-2-oxopropane triphenyl phosphonium bromide chloroform solvate, BOL SOC CH, 43(4), 1998, pp. 493-500
Citations number
10
Categorie Soggetti
Chemistry
Journal title
BOLETIN DE LA SOCIEDAD CHILENA DE QUIMICA
ISSN journal
03661644 → ACNP
Volume
43
Issue
4
Year of publication
1998
Pages
493 - 500
Database
ISI
SICI code
0366-1644(199812)43:4<493:CSANSO>2.0.ZU;2-I
Abstract
The crystal structure of C42H37O3P2Br has been determined by single crystal X-ray diffraction. The title compound is monoclinic, space group P2(1)/n ( Nr. 14), with unit cell parameters a = 11.220(6), b = 14.345(10), c = 25.61 6(17) Angstrom, beta = 97.21(5)degrees and Z = 4. The compound crystallizes with solvent molecules of chloroform, and has triphenylphosphonium ylide a nd triphenyl phosphonium salt moieties linked by the carbon chain of 3-carb oethoxy-2-oxopropane. The H-1-, C-13- and P-31-NMR spectra are discussed an d related to the crystal structure.