The detailed report of the first cyclo-γ-cyanoethylation of an α,β-unsaturated carbonyl system, 3β-acetoxy-5α-pregn-17-en-21-al, is given. This reaction, which proceeds in high yields, gives rise, in a single operation, to products with an additional functionalized six-membered ring, primarily to allylic α′-cyanohexenols.
给出了 α,β-不饱和羰基体系 3β-乙酰
氧基-5α-pregn-17-en-21-al 的首次环-γ-
氰乙基化的详细报告。该反应以高产率进行,在一次操作中产生具有额外官能化六元环的产物,主要是
烯丙基α'-
氰基己
烯醇。