A mild and efficient protocol for the conversion of carboxylic acids to olefins by a catalytic decarbonylative elimination reaction
作者:Lukas J. Gooßen、Nuria Rodríguez
DOI:10.1039/b316613a
日期:——
A new method for the conversion of aliphatic carboxylic acids to olefins under unprecedented mild conditions is disclosed, wherein the carboxylic acids are converted in situ with pivalic anhydride to the mixed anhydrides, which regioselectively add to a PdCl2–DPE-Phos catalyst. At a temperature of only 110 °C, smooth decarbonylation and β-hydride elimination occur, and the corresponding olefins along with CO, CO2 and pivalic acid are liberated.
披露了一种在前所未有的温和条件下将脂肪族羧酸转化为烯烃的新方法,其中羧酸与皮瓦酸酐原位转换为混合酐,这些混合酐选择性地与PdCl2–DPE-Phos催化剂反应。在仅 110 °C 的温度下,顺利发生脱羰基和β-氢消除,并释放出相应的烯烃以及一氧化碳、二氧化碳和皮瓦酸。