Green synthesis of C5-C6-unsubstituted 1,4-DHP scaffolds using an efficient Ni-chitosan nanocatalyst under ultrasonic conditions

被引：5

作者：

Basu, Soumyadip ^{[1
]}

Chatterjee, Sauvik ^{[2
]}

Ray, Suman ^{[3
]}

Maity, Suvendu ^{[4
]}

Ghosh, Prasanta ^{[4
]}

Bhaumik, Asim ^{[2
]}

Mukhopadhyay, Chhanda ^{[1
]}

机构：

[1] Univ Calcutta, Dept Chem, 92 APC Rd, Kolkata 700009, India

[2] Indian Assoc Cultivat Sci, Dept Mat Sci, Kolkata 700032, India

[3] Presidency Univ, Dept Chem, Kolkata 700073, India

[4] RK Mission Residential Coll, Dept Chem, Kolkata 700103, India

来源：

BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY | 2022年 / 18卷

关键词：

1; 4-DHPs; green synthesis; magnetically recyclable catalyst; Ni-chitosan nanoparticles; ultrasonication; PALLADIUM NANOPARTICLES; HETEROGENEOUS CATALYSIS; SILICA; 1,4-DIHYDROPYRIDINES; REGIOSELECTIVITY; IMMOBILIZATION; SYSTEM; HECK;

D O I：

10.3762/bjoc.18.14

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A heterogeneous and magnetically recyclable Ni-chitosan nanocatalyst was synthesized and thoroughly characterized by powder Fourier-transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray (EDX) spectroscopy, etc. It was effectively utilized in the eco-friendly synthesis of new C5-C6-unsubstituted 1,4-DHPs under ultrasonic irradiation. The important focus of the methodology was to develop an environmentally friendly protocol with a short reaction time and a simple reaction procedure. The other advantages of this protocol are a wide substrate scope, a very good product yield, the use of an eco-friendly solvent and a recyclable nanocatalyst, as well as reaction at room temperature.

引用

页码：133 / 142

页数：10

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