Diversity oriented catalyst-free and solvent-free one-pot MCR at room temperature: rapid and regioselective convergent approach to highly functionalized dihydro-4H-thiopyrans
作者:Suvajit Koley、Sushobhan Chowdhury、Tanmoy Chanda、B. Janaki Ramulu、Maya Shankar Singh
DOI:10.1016/j.tet.2013.07.001
日期:2013.9
Highly convergent and regioselective approach to hitherto unreported and synthetically demanding 6-cycloamino-2-(methyl/benzyl)sulfanyl-3-(aroyl/hetaroyl/alkanoyl)-4-aryl-5,6-dihydro-4H-thiopyrans has been developed via one-pot three-component domino coupling of β-oxodithioesters, α,β-unsaturated aldehydes, and cyclic aliphatic secondary amines at room temperature under catalyst-free and solvent-free
高度会聚和区域选择性的方法来迄今未报告的和合成苛刻6-环氨基-2-(甲基/苯甲基)硫烷基-3-(芳酰基/杂芳酰基/链烷酰基)-4-芳基-5,6-二氢-4- ħ -thiopyrans一直通过在无催化剂和无溶剂条件下于室温下通过一锅三组分的β-氧二硫代酯,α,β-不饱和醛和环状脂族仲胺的多米诺偶联反应开发。该策略的吸引人的特征包括条件温和,反应时间短,原子经济性高,产率高以及在单个冲程中形成三个新键(C–C,C–N和C–S)和一个环的功效。