A general, high yield synthesis of α-oxoketene dithioacetals and O-(1-alkoxy-2,2-dialkyl)vinyl S-alkyl dithiocarbonates from carboxylic esters
作者:Syed Mashhood Ali、Shigeo Tanimoto
DOI:10.1039/c39890000684
日期:——
α-Oxoketene dithioacetals (5) and O-(1-alkoxy-2,2-dialkyl)vinyl S-alkyl dithiocarbonates (4) were prepared in high yields from carboxylic esters by the reaction of their lithium enolates (2) with carbon disulphide at –78 °C followed by alkylation.
α-Oxoketene二硫(5)和ø - (1-烷氧基-2,2-二烷基)乙烯基小号-烷基二硫代碳酸酯(4)通过其锂烯醇化物(的反应在从羧酸酯高的产率制备2)与二硫化碳在–78°C下进行烷基化。