Metal reductions of malonates and oxalates. A covenient decarboxylation route for disubstituted malonates and synthesis of keten acetals
作者:Yu-Neng Kuo、Francis Chen、C. Ainsworth、Jordan J. Bloomfield
DOI:10.1039/c29710000136
日期:——
Alkali-metal reduction of disubstituted malonates or treatment of esters with base in the presence of trimethylchlorosilane gives high yields of the reactive disubstituted keten alkyl trimethylsilyl acetals, while diethyl oxalate, under similar conditions is reduced to 1,2-diethyl-1,2-bis(trimethylsilyloxy)ethylene.
二取代丙二酸酯的碱金属还原或在三甲基氯硅烷存在下用碱处理酯类可得到高产率的反应性二取代缩酮烷基三甲基甲硅烷基缩醛,而草酸二乙酯在类似条件下可还原为1,2-二乙基-1,2-双(三甲基甲硅烷氧基)乙烯。