α′-HYDROXY-α,β-UNSATURATED TOSYLHYDRAZONES: PREPARATION AND USE AS INTERMEDIATES FOR CARBONYL AND ENONE TRANSPOSITIONS
作者:Lúcia H. B. Baptistella、Adriana M. Aleixo
DOI:10.1081/scc-120012982
日期:2002.1
tosylhydrazones dianions are treated with molecular oxygen, yielding α′-hydroxy-α,β-unsaturated tosylhydrazones, versatile intermediates for organic synthesis. They proved to be useful for 1,2-carbonyl and 1,2-enone transpositions, and also permitted the preparation of α′-hydroxy enones in very high yields.
摘要 区域特异性生成的 α,β-不饱和甲苯磺酰腙二价阴离子用分子氧处理,产生 α'-羟基-α,β-不饱和甲苯磺酰腙,有机合成的多功能中间体。它们被证明可用于 1,2-羰基和 1,2- 烯酮转座,并且还允许以非常高的产率制备 α'-羟基烯酮。