title: Bifunctional organocatalyst for methanolytic desymmetrization of cyclic anhydrides: increasing enantioselectivity by catalyst dilution.
abstract: Highly enantioselective methanolysis of meso-cyclic anhydride was achieved with bifunctional organocatalyst containing a quinine-thiourea moiety; unusual concentration, temperature and solvent effects on the enantioselectivity can be explained in terms of a mechanism involving monomer-dimer equilibration of the catalyst.
authors.affiliation: Department of Chemistry, Sungkyunkwan University, 300 Cheoncheon, Jangan, Suwon, Gyeonggi, 440-746 Korea.
authors.forename: Ho Sik
authors.initials: HS
authors.lastname: Rho
authors.forename: Sang Ho
authors.initials: SH
authors.lastname: Oh
authors.forename: Ji Woong
authors.initials: JW
authors.lastname: Lee
authors.forename: Jin Yong
authors.initials: JY
authors.lastname: Lee
authors.forename: Jik
authors.initials: J
authors.lastname: Chin
authors.forename: Choong Eui
authors.initials: CE
authors.lastname: Song