An efficient and environmentally friendly method for synthesis of arylmethylenemalononitrile catalyzed by Montmorillonite K10-ZnCl2 under ultrasound irradiation

• Published in: Journal of chemical technology and biotechnology (1986) Vol. 79; no. 11; pp. 1275 - 1278
• Main Authors: Li, Ji-Tai, Xing, Chun-Yong, Li, Tong-Shuang
• Format: Journal Article
• Language: English
• Published: Chichester, UK John Wiley & Sons, Ltd 01.11.2004; Wiley
• Subjects: Applied sciences; arylmethylenemalononitriles; Biotechnology & Applied Microbiology; Catalysis; Catalytic reactions; Chemical engineering; Chemistry; Chemistry, Multidisciplinary; Engineering; Engineering, Chemical; Engineering, Environmental; Exact sciences and technology; General and physical chemistry; Knoevenagel condensation; Life Sciences & Biomedicine; Physical Sciences; Reactors; Science & Technology; supported catalyst; synthesis; Technology; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; ultrasound irradiation; synthesis; supported catalyst; Knoevenagel condensation; ultrasound irradiation; arylmethylenemalononitriles; Montmorillonite; Ultrasound; Catalytic reaction
• ISSN: 0268-2575; 1097-4660
• DOI: 10.1002/jctb.1123

Montmorillonite K10‐supported ZnCl2 is an efficient and environmentally friendly catalyst. Knoevenagel condensation of malononitrile with aromatic aldehydes catalyzed by K10–ZnCl2 in anhydrous ethanol produces arylmethylenemalononitriles in 87–98% yield within 2–10 min under ultrasound irradiation. The catalyst can be reused two times without significant decrease in activity. Copyright © 2004 Society of Chemical Industry