Formation of novel 1 : 2 adducts between Bu<sup>n</sup><sub>3</sub>P·CS<sub>2</sub>and electron-deficient alkynes
作者:R. Alan Aitken、George Ferguson、Swati V. Raut
DOI:10.1039/c39910000812
日期:——
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 ylides whose structure is established by X-ray crystallography.
三正丁基膦和二硫化碳之间的齐聚物在中性条件下与两个当量的乙炔二甲酸二甲酯和二乙酯、二苯甲酰基乙炔和苯甲酰丙炔酸甲酯发生反应,生成新型结晶的含二硫醚的酰化物,并通过 X 射线晶体学确定了其结构。
Formation of novel 1:2 adducts between bun3P.CS2 and electron-deficient alkynes
作者:R.Alan Aitken、Swati V. Raut、George Ferguson
DOI:10.1016/s0040-4020(01)80474-9
日期:1992.1
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