title: Organocatalytic Knoevenagel condensations by means of carbamic acid ammonium salts.
abstract: The Knoevenagel condensation between an active methylene compound and an aromatic aldehyde with a carbamic acid ammonium salt used as an organocatalyst gave the desired Knoevenagel products in up to 98% yield. The reaction occurred at rt and in a short reaction time under solvent-free conditions. In addition, no extraction, wash, or chromatography steps were needed to obtain a high-purity Knoevenagel product.
authors.affiliation: Department of Molecular Science, Faculty of Engineering, Shizuoka University, 3-5-1 Johoku, Hamamatsu 432-8561, Japan. tnmase@ipc.shizuoka.ac.jp
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Mase
authors.forename: Takuya
authors.initials: T
authors.lastname: Horibe