Addition of elemental selenium to phosphonate carbanions- - a key step in the synthesis of vinylphosphonates. A new synthetic approach to 1,4-dicarbonyl systems.
作者:Marian Mikolajczyk、Slawomir Grzejszczak、Katarzyna Korbacz
DOI:10.1016/s0040-4039(01)81837-2
日期:1981.1
A convenient synthesis of vinylphosphonates which involves addition of elemental selenium to phosphonate carbanions followed by alkylation and selenoxide elimination is described. A general approach to 1,4-dicarbonyl systems based on diethyl α-methylthiovinylphosphonate is also reported.
描述了一种方便的
乙烯基膦酸酯的合成方法,该方法包括将元素
硒添加到
膦酸酯碳负离子中,然后进行烷基化和亚
硒酸酯消除。还报道了基于α-甲基
硫代
乙烯基膦酸二
乙酯的1,4-二羰基体系的一般方法。