An Original Approach to the Synthesis of Phosphorus-Carbon Heterocycles− The 3-Oxo-2,3-dihydro-1,3-oxaphospholes
作者:David Virieux、Ciptadi Ciptadi、Yves-Alain Bekro、Henri-Jean Cristau
DOI:10.1002/ejoc.200400179
日期:2004.8
synthesis of new highly functionalized phosphorus heterocycles, the 3-oxo-2,3-dihydro-1,3-oxaphospholes, was achieved by a cyclization reaction involving malonic enolates as 1,3-O,C-dinucleophiles and phosphorus compounds, such as (chloromethyl)phosphinic chlorides or alkyl (chloromethyl)phosphonochloridates, as 1,2-dielectrophiles. Owing to the structural restriction that results from the cyclic structure
新的高度官能化的磷杂环化合物 3-oxo-2,3-dihydro-1,3-oxaphospholes 的合成是通过涉及丙二烯醇作为 1,3-O,C-双亲核试剂和磷化合物的环化反应实现的,例如作为(氯甲基)次膦酰氯或烷基(氯甲基)膦酰氯,作为 1,2- 亲电试剂。由于环状结构导致的结构限制,1H NMR 光谱显示了对 HCPO 二面角敏感的 2JP,H 耦合常数的极值。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)