Synthesis of substituted cycloalkene-1,1-dicarboxylates via olefin metathesis in water
作者:Katharina Tenbrink、Isabell Kemker、Jürgen Schatz、Harald Gröger
DOI:10.3998/ark.5550190.p008.812
日期:——
A range of substituted cycloalkene-1,1-dicarboxylat es was synthesized through olefin metathesis starting from readily available acylic malonate pre cursors in an efficient fashion. As a metathesis catalyst, a Grubbs II-type catalyst was used in the se experiments, which were run in water and gave the cyclic malonate products with high convers ions of 94-100%. The catalytic amount was in the range
一系列取代的环烯烃-1,1-二羧酸酯是通过烯烃复分解以有效的方式从容易获得的酰基丙二酸酯前体开始合成的。作为复分解催化剂,在这些实验中使用了 Grubbs II 型催化剂,其在水中运行并得到具有 94-100% 高转化率的环状丙二酸产物。取决于起始材料的结构,催化量在0.5-5mol%的范围内。证明了该复分解反应在水中的普遍性及其适用于制备五元和六元和烷基以及芳基取代的前手性环烯烃-1,1 二羧酸酯。