Differences in the crystal structures of two dialkyl diester triphenyl-phospho-nium ylids

Castaeda F.; Jullian C.; Bunton C.A.; Garland M.T.; Baggio R.

Keywords: chemistry, acid, crystal, hydrogen, x-ray, structure, ray, compound, bonds, esters, molecular, article, organophosphorus, packing, crystallography, compounds, derivative, chemical, X, dimethyl, malonic, Crystallography,, Malonates, diesters

Abstract

Hydrogen bonding and crystal packing play major roles in determining the conformations of ethyl methyl 2-(triphenyl-phospho-ranyl-idene)malonate, Ph3P=C(CO2CH3)CO2CH2CH3 or C24H23O4P, (I), and dimethyl 2-(triphenyl-phosphor- anyl-idene)malonate, Ph3P=C(CO2CH3)2 or C23H21O4P, (II). In (I), the acyl O atom of the ethyl ester group is anti to the P atom, while the O atom of the methyl ester group is syn. In (II), the dimethyl diester is a 1:1 mixture of anti-anti and syn-anti conformers. © International Union of Crystallography 2007.

Más información

Título según SCOPUS: Differences in the crystal structures of two dialkyl diester triphenyl-phospho-nium ylids
Título de la Revista: ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS
Volumen: 63
Número: 4
Editorial: WILEY-BLACKWELL PUBLISHING, INC
Fecha de publicación: 2007
Idioma: eng
URL: http://www.scopus.com/inward/record.url?eid=2-s2.0-34147108735&partnerID=q2rCbXpz
DOI:

10.1107/S0108270107010542

Notas: SCOPUS