作者:Romualdo Caputo、Carla Ferreri、Domenico Mastroianni、Giovanni Palumbo、Ernest Wenkert
DOI:10.1080/00397919208019085
日期:1992.8
Abstract γ-Methylene derivatives of α,β-unsaturated ketones are obtained readily by a one-pot procedure exploiting the reaction of O-silylated dienolates with commercially available formaldehyde N, N-dimethyliminium chloride in anhydrous N, N-dimethylformamide, in situ oxidation of the Mannich reaction product with hydrogen peroxide, and elimination of N,N-dimethylhydroxylamine from the resultant N-oxide
摘要 α,β-不饱和酮的γ-亚甲基衍生物利用O-甲硅烷基化二烯醇化物与市售甲醛N,N-二甲基亚胺氯化物在无水N,N-二甲基甲酰胺中的原位氧化反应,通过一锅法很容易获得。 Mannich 反应产物与过氧化氢的反应,并从生成的 N-氧化物中消除 N,N-二甲基羟胺。