Cis-homo addition-1,4 thiophile d'organomagnesiens avec des composes thiocarbonyles comportant un groupe carbonyle en β
作者:J. Masson、P. Metzner、J. Vialle
DOI:10.1016/0040-4020(77)80454-7
日期:1977.1
Aliphatic Grignard reagents react stereoselectively with β thioxo carbonyl compounds to give substituted cis 2-alkylthio or 2,2-bis (alkylthio) cyclopropanols with good yields. Two types of non-enethiolisable thiocarbonyl compounds of formulae MeCOC(Me)2CSR undergo this reaction a thioketone (R = Me) and a number of dithioesters (R = SMe, SEt, S iso Pr). The cis configuration of cyclopropanols has
脂肪族格氏试剂与β硫代羰基化合物发生立体选择反应,以高收率得到取代的顺式2-烷硫基或2,2-双(烷硫基)环丙醇。两种类型的式为MeCOC(Me)2 CSR的不可烯化的硫代羰基化合物会经历此反应,其中硫酮(R = Me)和许多二硫代酯(R = SMe,SEt,S iso Pr)。环丙醇的顺式构型已通过1 H NMR-Eu(fod)3进行了分配。环丙烷环的闭合是一致的顺式-1,4-同构加成。