A Hantzsch Amido Dihydropyridine as a Transfer Hydrogenation Reagent for α,β-Unsaturated Ketones
作者:Scott A. Van Arman、Austin J. Zimmet、Ian E. Murray
DOI:10.1021/acs.joc.6b00041
日期:2016.5.6
An improved synthesis of the bis-methylamido Hantzsch dihydropyridine is described. The Hantzsch amide is demonstrated to be an effective transfer hydrogenation reagent using α,β-unsaturated ketones as the test case. Unreacted Hantzsch amide and the bis-methylamidopyridine byproduct are effectively removed by extraction in contrast to the commonly used Hantzsch diethyl ester. Several examples are given
描述了双甲基酰胺基汉茨二氢吡啶的改进的合成。Hantzsch酰胺被证明是一种有效的转移氢化试剂,使用α,β-不饱和酮作为测试案例。与常用的汉茨二乙酯相反,未反应的汉茨酰胺和双甲基酰胺基吡啶副产物可通过萃取有效去除。给出了几个实例,其中该反应对共轭芳族底物比对脂族底物更有效。