Selective synthesis of α-organylthio esters and α-organylthio ketones from β-keto esters and sodium<i>S</i>-organyl sulfurothioates under basic conditions
作者:Jean C Kazmierczak、Roberta Cargnelutti、Thiago Barcellos、Claudio C Silveira、Ricardo F Schumacher
DOI:10.3762/bjoc.17.24
日期:——
herein a selective method to prepare α-organylthio esters and α-organylthio ketones by the reaction of β-ketoesters with sodium S-benzyl sulfurothioate or sodium S-alkyl sulfurothioate (Bunte salts) under basic conditions in toluene as the solvent at 100 °C. When 4 equivalents of a base were used, a series of differently substituted α-thio esters were obtained with up to 90% yield. On the other hand