title: Inorganic zinc salts catalyzed Knoevenagel condensation at room temperature without solvent.
abstract: The Knoevenagel condensation of aromatic aldehydes with active methylene compounds (malononitrile or ethyl cyanoacetate), catalyzed by inexpensive and readily available Zn(OAc)2 x 2H2O, ZnCl2, and ZnBr2 to prepare arylidene compounds in excellent yields under solvent-free conditions at room temperature has been described.
authors.affiliation: Liaoning Shihua University, Fushun, Liaoning, P. R. China.
authors.forename: Heng
authors.initials: H
authors.lastname: Jiang
authors.forename: Min
authors.initials: M
authors.lastname: Wang
authors.forename: Zhiguo
authors.initials: Z
authors.lastname: Song
authors.forename: Hong
authors.initials: H
authors.lastname: Gong
mesh_terms: D000447:Aldehydes / Q000737:chemistry; D001597:Benzylidene Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D002384:Catalysis; D012492:Salts / Q000737:chemistry; D013696:Temperature; D015032:Zinc / Q000737:chemistry*
chemical_list: D000447:Aldehydes; D001597:Benzylidene Compounds; D012492:Salts; D015032:Zinc