Synthesis of 2-alkyl-2-arylcyanoacetates via CuI/sodium picolinate-catalyzed direct arylation of α-substituted cyanoacetates
作者:Siwei Xie、Peng Qin、Meng Li、Xiaojing Zhang、Yongwen Jiang、Dawei Ma
DOI:10.1016/j.tetlet.2013.05.057
日期:2013.7
CuI/sodium picolinate-catalyzed direct arylation of alpha-substituted cyanoacetates takes place at 60 degrees C in the presence of Cs2CO3 and 4 angstrom molecular sieve, affording 2-alkyl-2-arylcyanoacetates in good to excellent yields. Both electron-rich and electronic-deficient aryl iodides, and some functionalized a-substituted cyanoacetates are compatible with the reaction conditions, thereby allowing diverse synthesis of 2-alkyl-2-arylcyanoacetates. (C) 2013 Elsevier Ltd. All rights reserved.