Convenient and efficient decarboxylative aldol reaction of malonic acid half esters with trifluoromethyl ketones
作者:Xiao-Juan Li、Heng-Ying Xiong、Ming-Qing Hua、Jing Nie、Yan Zheng、Jun-An Ma
DOI:10.1016/j.tetlet.2012.02.053
日期:2012.4
A convenient and efficient decarboxylative ketone aldol condensation of malonicacid half esters was reported. In the presence of catalytic amount of triethylamine, a series of aromatic and alkyl trifluoromethyl ketones were transformed into the desired adducts in 61–99% yields. In a preliminary experiment, a moderate stereoselectivity was obtained. Direct reduction of the aldol product with LiAlH4