Synthesis of New 1, 4-Dihydropyridines by Addition-Rearrangement Process with Imine Derivatives and β-Ketoester as Starting Materials in Solvent-Free Conditions (SUPPORTING INFORMATION)
作者:Xueming Chen、Xiaoguang Huang、Yunyun Chen、Feng He、Xingshu Li
DOI:10.2174/157017809787893082
日期:2009.4.1
N-substituted 1,4-dihydropyridines bearing a carboxyl group at the 4-position were synthesized in solvent-free conditions with Cu2+ as the catalyst, imine and β-ketoester as starting materials. The possible mechanism which consists of addition-rearrangement process was proposed and examined by the reaction of isolated product of first addition to β- ketoester.
以Cu2+为催化剂,亚胺和β-酮酯为原料,在无溶剂条件下合成了4位带有羧基的N-取代1,4-二氢吡啶。通过首次加成到β-酮酯的分离产物的反应,提出并检验了由加成-重排过程组成的可能机制。