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

Abstract

To cite this article: Zeinab Akbarzadeh & Javad Safaei-Ghomi (2020) Ultrasound assisted ecofriendly 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

A Compendium of the Most Promising Synthesized Organic Compounds against Several Fusarium oxysporum Species: Synthesis, Antifungal Activity, and Perspectives

“…Akbarzadeh and Safaei-Ghomi (2020) reported the synthesis of a mesoporous Al-SBA-15 modified support which included a N , N’ -(1,2-phenylene) bis (2-aminobenzamide)dichloro cobalt complex. Its catalyst capacity was evaluated to synthesize 3-cinnamoyl coumarins via a three-component reaction between benzaldehydes, salicylaldehydes, and ethyl acetoacetate ( Scheme 30 ) [ 82 ]. Ultrasound irradiation combined with this material as a catalyst allowed to obtain the desired compounds in excellent yields.…”

Silica‐Supported 1st Row Transition Metal (Nano)Catalysts: Synthetic and Catalytic Insight

“… CoCl 2 NN'PhBIA@Al‐SBA‐15 catalyzed coumarin derivatives synthesis and Co(II)‐PLP‐Schiff base/SBA‐15 catalyzed benzothiazoles formation [143–145] …”

“…[143][144][145] N,N'-(1,2phenylene)bis(2-amino benzamide) ligand was grafted to Al-SBA-15 by 3-chloropropyl trimethoxy silane (CPTMS) prior to CoCl 2 coordination to nitrogenated ligand (Scheme 12). [143,144] The as-prepared material permits preparing a series of coumarin derivatives, with important activities in chemotherapy, under ethanol reflux or ultrasonic irradiation in very high yields (Scheme 13.a-b). A modified methodology was employed by the same group using pyridoxal phosphate Schiff base as ligand supported on SBA-15 for the synthesis of benzothiazoles in water (Scheme 13.c).…”

Greener organic synthetic methods: Sonochemistry and heterogeneous catalysis promoted multicomponent reactions

“…The 3-cinnamoyl coumarins ( 1 3 7 ) were synthesized by using a sonicated multicomponent reaction strategy via condensation of benzaldehydes ( 1.a ), salicyaldehydes ( 1.b ) and ethyl acetoacetate ( 2 ) ( Scheme 50 ) [220] in presence of a new mesoporous catalyst CoCl 2 NN'PhBIA/Al-SBA-15 (0.07 w/w %). The reactions were carried out in a multilayer ultrasound producer involving a Ti transformer and vibrator (horn) (diameter = 12.5 mm), working at 20 kHz and power of 55 W. Various solvents were studied, and among them ethanol was more effective.…”