Ultrasound assisted eco-friendly synthesis of 3-cinnamoyl coumarins using N,N'-(1,2-phenylene)bis(2-aminobenzamide) dichloro cobalt immobilized on mesoporous Al-SBA-15 as a new and recyclable catalyst

Green Chemistry Letters and Reviews

article

Zeinab Akbarzadeh¹  Javad Safaei-Ghomi¹ 

[1] Department of Organic Chemistry, Faculty of Chemistry, University of Kashan

关键词: CoCl 2 N;    N'-(1;    2-phenylene)bis(2-aminobenzamide)/Al-SBA-15;    ultrasonic irradiation;    3-cinnamoyl coumarin;    mesoporous;    reusable catalyst;    organic–inorganic hybrid;   

DOI  :  10.1080/17518253.2020.1737250

学科分类：化学（综合）

来源: Taylor & Francis

【 摘 要 】

A novel mesoporous Al-SBA-15 modified by N,N'-(1,2-phenylene)bis(2-aminobenzamide) dichloro cobalt has been prepared and applied as a reusable catalyst in the 3-cinnamoyl coumarins synthesis via three-component reaction between benzaldehydes, salicylaldehydes and ethyl acetoacetate by the assist of ultrasonic irradiation. By using of the nanocatalyst and also ultrasound irradiation, the easiness and velocity of the abovementioned reaction were enhanced and an environment friendly condition was provided to synthesis of various 3-cinnamoyl coumarin compounds. The properties and structure of nanocatalyst have been specified by methods including powder X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), nitrogen adsorption–desorption analysis and scanning electronic microscopy (SEM). Superiority of this novel and viable method is due to mild reaction condition, short reaction times, high yields of 3-cinnamoyl coumarins, environmentally benign, recoverability of the CoCl 2 N,N'-(1,2-phenylene)bis(2-aminobenzamide)/Al-SBA-15 catalyst and reusability with important preservation in its catalytic activity.

【 授权许可】

CC BY|CC BY-NC