A New Three-Carbon Synthon for Efficient Synthesis of Benzannelated and 1-(2-Arylethenyl) Heterocycles
作者:Alan R. Katritzky、Dmytro O. Tymoshenko、Daphne Monteux、Vladimir Vvedensky、George Nikonov、Christopher B. Cooper、Milind Deshpande
DOI:10.1021/jo000946r
日期:2000.11.1
The novel three-carbon synthon 1-(1H-1,2,3-benzotriazol-1-yl)-3-chloroacetone for the synthesis of benzothiazoles, pyrido[1,2-a]indoles, and styryl-substituted indolizines and imidazo[1,2-a]pyridines is reported. The proposed routes are a general and efficient approach for heterocyclizations followed by benzannelations or attachment of arylethenyl pharmacophores.