Ethyl triphenylstannylacetate and ethyl α-triphenylstannylpropionate reacted with aldehydes and acetals to give β-hydroxy and β-alkoxy esters at room temperature in the presence of TiCl4, in moderate yields. Under these conditions ethyl triphenylgermylacetate and ethyl trimethylsilylacetate did not work.
三苯基甲
锡基
乙酸乙酯和α-三苯基甲
锡基
丙酸乙酯与醛和
缩醛在室温下在TiCl4 存在下以中等产率反应生成β-羟基和β-烷氧基酯。在这些条件下,三苯基
锗烷基
乙酸乙酯和三甲基甲
硅烷基
乙酸乙酯不起作用。