title: Coupling reactions of CO2 with neat epoxides catalyzed by PPN salts to yield cyclic carbonates.
abstract: The off-the-shelf reagent PPN+Cl- and PPN-manganese carbonylates [PPN]+[Mn(CO)4L]- (L = CO, PPh3) are good catalysts for the coupling reactions of CO2 with neat epoxides without the use of organic solvents to afford cyclic carbonates. PPN salts with weak nucleophilic anions such as PPN+BF4- and PPN+OTf- are, however, inactive for the coupling reactions.
authors.affiliation: Department of Applied Biology & Chemical Technology, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
authors.forename: Wing Nga
authors.initials: WN
authors.lastname: Sit
authors.forename: Siu Man
authors.initials: SM
authors.lastname: Ng
authors.forename: Kar Yan
authors.initials: KY
authors.lastname: Kwong
authors.forename: Chak Po
authors.initials: CP
authors.lastname: Lau