One-pot synthesis of β-N-glycosyl imidazole analogues via a palladium-catalysed decarboxylative allylation
作者:Shaohua Xiang、Jingxi He、Jimei Ma、Xue-Wei Liu
DOI:10.1039/c3cc48041k
日期:——
A concise and highly efficient strategy for the synthesis of N-glycosyl imidazole analogues is reported. This reaction is based on a palladium catalysed decarboxylative allylation and three steps, namely, carbamation, decarboxylation and allylation are involved. All the substrates can afford the desired products with excellent yields and selectivities.
An efficient regio- and diastereoselective arylation method of readily available 2,3-glycals with various aryl iodides has been established. Using the Pd(OAc)2/AsPh3 precatalytic system, this protocol proved to be general to prepare a variety of substituted C2-aryl glycosides in good yields with complete diastereoselectivity.