Metal-Free Sustainable Synthesis of Amides via Oxidative Amidation Using Graphene Oxide as Carbocatalyst in Aqueous Medium

被引：8

作者：

Dandia, Anshu ^{[1
]}

Parihar, Sonam ^{[1
]}

Saini, Pratibha ^{[1
]}

Rathore, Kuldeep S. ^{[2
]}

Parewa, Vijay ^{[1
]}

机构：

[1] Univ Rajasthan, Dept Chem, Ctr Adv Studies, Jaipur 302004, Rajasthan, India

[2] Arya Coll Engn & IT, Dept Phys, Jaipur, Rajasthan, India

来源：

CATALYSIS LETTERS | 2019年 / 149卷 / 11期

关键词：

Carbocatalyst; Oxidative amidation; Metal-free synthesis; BENZYL ALCOHOLS; ALDEHYDES; NANOPARTICLES; AMINES; GO; REARRANGEMENT; ESTERS;

D O I：

10.1007/s10562-019-02878-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We describe an efficient, clean and metal-free procedure for the synthesis of amides via oxidative amidation of aldehydes with anilines using graphene oxide (GO) as a recyclable catalyst and KBrO3 as a mild oxidant in aqueous medium under microwave irradiation. GO nanosheets were prepared and characterized by XRD, TEM, SEM, and FT-IR, analyses. GO showed high compatibility with KBrO3 in water and offered high TOF value (1.30 x 10(-3) mol g(-1) min(-1)). GO oxygen functionalities catalyze the oxidative amidation effectively in mild condition with high recyclability. A plausible mechanism was proposed by the isolating the intermediate.

引用

页码：3169 / 3175

页数：7

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