A one-pot, three-component reaction has been developed and successfully employed for the synthesis of biologically relevant, highly functionalized spirooxindole-fused 3-thiazoline derivatives. Starting from ammonia, three mercapto carbonyl components and a series of substituted isatins, products were obtained in good yields (24 examples), by following a simple and rapid protocol. The obtained thiazolines
Enatioselective organocatalytic synthesis of highly functionalized tetrahydrothiophenes by a Michael-aldol cascade reaction
作者:Guangshun Luo、Shilei Zhang、Wenhu Duan、Wei Wang
DOI:10.1016/j.tetlet.2009.03.218
日期:2009.6
A catalytic asymmetric Michael-aldol cascade process for efficient synthesis of trisubstituted tetrahydrothiophenes is reported with high enantio- and diastereo-selectivities. Notably, three consecutive stereogenic centers including one chiral quaternarycarboncenter are efficiently created in the ‘one-pot’ operation.