A New [2+2+1] Heterocyclization for the Synthesis of 2,3,5-Trisubstituted Thiophenes under Microwave Irradiation
作者:Bo Jiang、Shu-Jiang Tu、Hai-Wei Xu、Guan-Hua Ma
DOI:10.1055/s-0033-1339917
日期:——
Abstract A new three-component strategy for the efficient synthesis of 2,3,5-trisubstituted thiophene derivatives through a [2+2+1] heterocyclization between 3-(2-aryl-2-oxoethylidene)-2-oxindoles and α-thiocyanato ketones under microwave irradiation is described. The bond-forming efficiency, accessibility, and generality of this synthesis make it highly valuable to assemble thiophene scaffolds. A new three-component
摘要 通过3-(2-芳基-2-氧代亚乙基)-2-氧吲哚和α-硫氰酸根的[2 + 2 + 1]杂环有效合成2,3,5-三取代噻吩衍生物的新的三组分策略描述了在微波辐射下的酮。这种合成方法的成键效率,可及性和通用性使得组装噻吩支架具有很高的价值。 通过3-(2-芳基-2-氧代亚乙基)-2-氧吲哚和α-硫氰酸根的[2 + 2 + 1]杂环有效合成2,3,5-三取代噻吩衍生物的新的三组分策略描述了在微波辐射下的酮。这种合成方法的成键效率,可及性和通用性使得组装噻吩支架具有很高的价值。