Regioselective Synthesis of Dihydrothiophenes and Thiophenes via the Rhodium-Catalyzed Transannulation of 1,2,3-Thiadiazoles with Alkenes
作者:Jeong-Yu Son、Jonghye Kim、Sang Hoon Han、Sung Hong Kim、Phil Ho Lee
DOI:10.1021/acs.orglett.6b02805
日期:2016.10.21
regioselective synthesis of a wide range of dihydrothiophenes was developed from the rhodium-catalyzed transannulation of 1,2,3-thiadiazoles with aliphatic, aromatic, and heteroaromatic alkenes. Tandem rhodium-catalyzed transannulation of 1,2,3-thiadiazoles with alkenes followed by 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) oxidation was also demonstrated for the one-pot regioselective synthesis of various
从铑催化的1,2,3-噻二唑与脂族,芳族和杂芳族烯烃的环转移反应发展了一种范围广泛的二氢噻吩区域选择性合成的方法。还证明了用铑对烯烃进行1,2,3-噻二唑与化合物的串联铑催化转环,然后进行2,3-二氯-5,6-二氰基-1,4-苯醌(DDQ)氧化,可用于多种反应物的一锅区域选择性合成。噻吩。本方法的优点包括广泛的底物范围,广泛的官能团相容性和高区域选择性。