Catalytic Reductive Dehydration of Tertiary Amides to Enamines under Hydrosilylation Conditions
摘要:
Tertiary amides are efficiently reduced to their corresponding enamines under hydrosilylation conditions, using a transition-metal-free catalytic protocol based on t-BuOK (5 mol %) and (MeO)(3)SiH or (EtO)(3)SiH as the reducing agent. The enamines were formed with high selectivity in good-to-excellent yields.
Phenylpyridine derivatives which exhibit a positive dielectric anisotropy and are useful as components have the formula:
wherein R is a C₁-C₁₀ alkyl group; X is H or F; Y is F, -CN, a C₁-C₁₀ alkyl group or a C₁-C₁₀ alkoxy group; and m is 0 or l.
表现出正介电各向异性并可用作成分的苯基吡啶衍生物具有以下式子:
其中 R 是 C₁-C₁₀ 烷基;X 是 H 或 F;Y 是 F、-CN、C₁-C₁₀ 烷基或 C₁-C₁₀ 烷氧基;以及 m 是 0 或 l。
Catalytic Reductive Dehydration of Tertiary Amides to Enamines under Hydrosilylation Conditions
作者:Alexey Volkov、Fredrik Tinnis、Hans Adolfsson
DOI:10.1021/ol403302g
日期:2014.2.7
Tertiary amides are efficiently reduced to their corresponding enamines under hydrosilylation conditions, using a transition-metal-free catalytic protocol based on t-BuOK (5 mol %) and (MeO)(3)SiH or (EtO)(3)SiH as the reducing agent. The enamines were formed with high selectivity in good-to-excellent yields.