136171-94-3Relevant articles and documents
Organocatalytic asymmetric epoxidation reactions in water-alcohol solutions
Zhuang, Wei,Marigo, Mauro,Jorgensen, Karl Anker
, p. 3883 - 3885 (2007/10/03)
The diastereo- and enantioselective organocatalytic epoxidation of α,β-unsaturated aldehydes in aqueous solutions is presented. By the screening of the reaction conditions for the epoxidation of cinnamic aldehyde applying hydrogen peroxide as the oxidant and 2-[bis-(3,5-bis-trifluoromethyl- phenyl)-trimethylsilanyloxy-methyl]-pyrrolidine as the catalyst, a highly stereoselective reaction has been developed. The scope of the diastereo- and enantioselective organocatalytic epoxidation in aqueous solutions is documented by the asymmetric epoxidation of α,β-unsaturated aldehydes with enantioselectivities up to 96% ee. The Royal Society of Chemistry 2005.