Tandem cycloaddition–decarboxylation of α-keto acid and isocyanide under oxidant-free conditions towards monosubstituted oxazoles
作者:Ling-Juan Zhang、Mei-Chen Xu、Jie Liu、Xian-Ming Zhang
DOI:10.1039/c6ra16031j
日期:——
An efficient method, tandem [3 + 2] cycloaddition–decarboxylation of α-keto acid and isocyanide promoted by copper salt, has been developed. Under oxidant-free conditions, a series monosubstituted oxazoles have been constructed. Different from the traditional application of α-oxo acids as acyl surrogates, the elegant approach herein ingeniously avoids consuming excess oxidants.
已经开发出一种有效的方法,即铜盐促进的α-酮酸和异氰酸酯的串联[3 + 2]环加成-脱羧反应。在无氧化剂的条件下,已经构建了一系列单取代的恶唑。与传统的α-氧代酸作为酰基替代物的应用不同,本文的优雅方法巧妙地避免了消耗过量的氧化剂。