FORMATION OF NOVEL 1-2 ADDUCTS BETWEEN BUN3P.CS2 AND ELECTRON-DEFICIENT ALKYNES

被引:20
作者
AITKEN, RA [1 ]
RAUT, SV [1 ]
FERGUSON, G [1 ]
机构
[1] UNIV GUELPH,DEPT CHEM & BIOCHEM,GUELPH N1G 2W1,ONTARIO,CANADA
关键词
D O I
10.1016/S0040-4020(01)80474-9
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The zwitterionic adduct between tri-n-butylphosphine and carbon disulphide reacts under neutral conditions with two equivalents of dimethyl- and diethyl acetylenedicarboxylate, dibenzoylacetylene and methyl benzoylpropiolate to give novel crystalline dithiole-containing phosphorus ylides. An X-ray structure, spectroscopic and chemical properties all show these to be significantly stabilised by delocalisation.
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页码:8023 / 8030
页数:8
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