Nickel Catalysis Enables Access to Thiazolidines from Thioureas via Oxidative Double Isocyanide Insertion Reactions
作者:Wen-Kui Yuan、Yan Fang Liu、Zhenggang Lan、Li-Rong Wen、Ming Li
DOI:10.1021/acs.orglett.8b03098
日期:2018.11.16
Ni-catalyzed oxidative double isocyanide insertion to thioureas under air conditions, in which thioureas play three roles as a substrate, a ligand, and overcoming isocyanide polymerization. The reaction is featured by employing a low-cost and low loading Ni(acac)2 catalyst, without any additives, and high atom economy. This is the first example to directly apply a Ni(II) catalyst in oxidative double isocyanide
通过在空气条件下将Ni催化的氧化双异氰酸酯插入硫脲中,开发了噻唑烷2,4,5-三亚胺衍生物的有效合成方法,其中硫脲起底物,配体和克服异氰酸酯聚合的三类作用。该反应的特点是采用低成本,低负荷的Ni(acac)2催化剂,不添加任何添加剂,并且具有高原子经济性。这是在氧化双异氰酸酯插入反应中直接应用Ni(II)催化剂的第一个示例。