Palladium-Catalyzed Cyclization-Heck Reaction of Allenamides: An Approach to 3-Methylene-5-phenyl-1,2,3,4-tetrahydropyridine Derivatives
作者:Fachao Yan、Hanbing Liang、Jian Song、Jie Cui、Qing Liu、Sheng Liu、Ping Wang、Yunhui Dong、Hui Liu
DOI:10.1021/acs.orglett.6b03364
日期:2017.1.6
4-tetrahydropyridine derivatives via palladium-catalyzed cyclization-Heck reaction of allenamides has been described. The 3-methylene-5-phenyl-1,2,3,4-tetrahydropyridine derivatives feature a nonconjugated diene, including one endo-enamine and one exocyclic double bond, which could be used for further transformation. Both aryl and vinyl halides performed very well under the standard conditions, delivering the
已经描述了通过钯催化的烯丙基酰胺的环化-Heck反应,有效地一锅构建官能化的3-亚甲基-5-苯基-1,2,3,4-四氢吡啶衍生物。3-亚甲基-5-苯基-1,2,3,4-四氢吡啶衍生物的特征在于非共轭二烯,包括一个内烯胺和一个环外双键,可用于进一步转化。芳基卤化物和乙烯基卤化物在标准条件下均表现出色,可有效提供相应的产品。