Flash vacuum pyrolysis of alkoxycarbonyl/sulfinyl stabilised phosphorus ylides: generation and intramolecular insertion of alkoxycarbonyl(sulfenyl)carbenes
作者:R. Alan Aitken、Martin J. Drysdale、Bruce M. Ryan
DOI:10.1039/c39940000805
日期:——
Flash vacuum pyrolysis of phosphorus ylides stabilised both by ester and sulfinyl groups results mainly in extrusion of Ph3PO to generate alkoxycarbonyl(sulfenyl)carbenes; these undergo intramolecular insertion into CH of the alkoxycarbonyl group giving β-lactones which under the conditions lose CO2 to afford alkenyl sulfides.
酯和亚磺酰基均稳定的磷化磷的闪蒸真空热解主要导致Ph 3 PO挤出生成烷氧基羰基(亚磺酰基)卡宾;这些经过烷氧基羰基分子内插入CH中,得到β-内酯,该β-内酯在失去CO 2的条件下得到链烯基硫化物。