Organocatalytic Green Approach Towards the Fabrication of Fused Benzo
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‐containing Heterocycles Facilitated by Ultrasonic Irradiation
作者:Ridaphun Nongrum、George Kupar Kharmawlong、Jims World Star Rani、Noimur Rahman、Arup Dutta、Rishanlang Nongkhlaw
DOI:10.1002/jhet.3680
日期:2019.10
transformations in organic synthesis offers a significant potential environmental benefit. This article reports the exploration of meglumine, a nontoxic and biodegradable amino sugar, as an organocatalyst for the synthesis of biologically active 1H‐dibenzo[b,e][1,4]diazepin‐1‐ones, highly regioselective benzimidazole derivatives and derivatives of quinoxalines. Operational simplicity, mild reaction conditions, shorter
Correction: Green synthesis of 1,4-benzodiazepines over La<sub>2</sub>O<sub>3</sub> and La(OH)<sub>3</sub> catalysts: possibility of Langmuir–Hinshelwood adsorption
Correction for ‘Green synthesis of 1,4-benzodiazepines over La2O3 and La(OH)3 catalysts: possibility of Langmuir–Hinshelwood adsorption’ by Archana Singh et al., RSC Adv., 2016, 6, 103455–103462.
Synthesis and characterization of CoFe2O4@SiO2@NH-NH2-PCuW as an acidic nano catalyst for the synthesis of 1,4-benzodiazepines and a powerful dye remover
作者:Ali Savari、Fariba Heidarizadeh、Nahid Pourreza
DOI:10.1016/j.poly.2019.03.046
日期:2019.7
novel magnetic heterogeneous nanocatalyst CoFe2O4@SiO2@NH-NH2-PCuW was synthesized and characterized. This powerfulcatalyst possesses Bronsted and Lewis acid properties. The presence of Cu enhances the acidity of this catalyst because of the increase in the electron deficiency of polyoxometalate. It was successfully applied for the easy and efficient one-pot synthesis of 1,4-benzodiazepine derivatives
A nickel nanoparticle engineered CoFe<sub>2</sub>O<sub>4</sub>@GO–Kryptofix 22 composite: a green and retrievable catalytic system for the synthesis of 1,4-benzodiazepines in water
作者:Roya Mozafari、Mohammad Ghadermazi
DOI:10.1039/d0ra01671c
日期:——
In this study, a competent and efficient methodology for the synthesis of benzodiazepine over magnetically retrievable novel CoFe2O4@GO–K 22 anchored Ni is reported.
ZnS nanoparticles as an efficient recyclable heterogeneous catalyst for one-pot synthesis of 4-substituted-1,5-benzodiazepines
作者:Hossein Naeimi、Hossein Foroughi
DOI:10.1039/c4nj01893a
日期:——
An efficient and novel method was developed for the synthesis of 4-substituted-1,5-benzodiazepine derivatives via a one-pot three-component catalytic reaction. The o-phenylenediamine and dimedone were reacted with aldehyde derivatives in the presence of ZnS nanoparticles as a heterogeneouscatalyst under thermal conditions. The reaction was completed with high to excellent product yields and short