1, 5, 7-Triazabicyclo [4.4. 0] dec-1-ene (TBD) and 7-methyl-1, 5, 7-triazabicyclo [4.4. 0] dec-1- ene (MTBD) promote the efficient formation of sulfonium ylides from sulfonium salts in the Corey–Chaykovsky epoxidation of aldehydes and provide excellent yields of the corresponding epoxides. This reaction protocol can be further adapted to allow for the development of both sequential and tandem-oxidation–epoxidation protocols from ...
