2-Cyclopropen-1,1-dicarbonsäure- und Bicyclo[1.1.0]butan-2,2-dicarbonsäure-diester
作者:Günther Maier、Bernd Wolf
DOI:10.1055/s-1985-31366
日期:——
2-Cyclopropene-1,1-dicarboxylic and Bicyclo[1.1.0]butane-2,2-dicarboxylic Diesters Cyclopropenation of bis[trimethylsilyl]-acetylene with diazomalonic esters affords 2,3-disilylated cyclopropene-1,1-dicarboxylic esters which are desilylated to 2-cyclopropene-1,1-dicarboxylic esters by treatment with potassium fluoride/crown ethers in acetonitrile. Two independent routes to silylated and non-silylated bicyclobutane-2,2-dicarboxylic esters are described.
2-环丙烯-1,1-二羧酸和双环[1.1.0]丁烷-2,2-二羧酸二酯 二氮代丙二酸酯与双[三甲基硅基]乙炔的环丙烯化反应生成2,3-二硅基化的环丙烯-1,1-二羧酸酯,通过在乙腈中用氟化钾/冠醚处理去硅基化得到2-环丙烯-1,1-二羧酸酯。描述了合成硅基化和非硅基化双环丁烷-2,2-二羧酸酯的两条独立路线。