Polystyrene-Supported 1,5,7-Triazabicyclo[4.4.0]dec-5-ene as an Efficient and Reusable Catalyst for the Thiolysis of 1,2-Epoxides under Solvent-Free Conditions
Polystyrene-supported 1,5,7-triazabicyclo[4.4.0]dec-5-ene (PS-TBD) is an effective basiccatalyst for the thiolysis of the 1,2-epoxides 1a–e by the aryl- and alkyl-substituted thiols 2A–E under solvent-free conditions while its activity is remarkably reduced in MeCN. The reactions are totally anti-diastereoselective and generally highly C-β regioselective. The corresponding hydroxy sulfides have been