Tandem Coupling of Azide with Isonitrile and Boronic Acid: Facile Access to Functionalized Amidines
作者:Zhen Zhang、Baoliang Huang、Guanyu Qiao、Liu Zhu、Fan Xiao、Feng Chen、Bin Fu、Zhenhua Zhang
DOI:10.1002/anie.201700539
日期:2017.4.3
Amidine is a notable nitrogen‐containing structural motif found in bioactive natural products and pharmaceuticals. Herein, a novel rhodium(I)‐catalyzed tandem reaction of readily accessible azides with isonitriles and boronic acids via a carbodiimide intermediate is achieved. This protocol offers an alternative approach toward N‐sulfonyl‐, N‐acyl‐, and N‐ phosphoryl‐functionalized, as well as general
idine是在生物活性天然产物和药物中发现的显着的含氮结构基序。本文中,通过碳二亚胺中间体实现了易于获得的叠氮化物与异腈和硼酸的新型铑(I)催化串联反应。该协议为N-磺酰基,N-酰基和N-磷酰基官能化以及具有广泛底物范围的常规N-芳基和N-烷基am提供了另一种方法。另外,当使用胺代替时,也可以合成官能化的胍。雌酮衍生的am和格列本脲生物等排体的完成进一步揭示了该策略的实用性。