Metal-free carbon as a catalyst for oxidative coupling: solvent-enhanced poly-coupling with regioselectivity,Green Chemistry

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Metal-free carbon as a catalyst for oxidative coupling: solvent-enhanced poly-coupling with regioselectivity
Green Chemistry ( IF 9.3 ) Pub Date : 2017-09-06 00:00:00 , DOI: 10.1039/c7gc02227a
Melad Shaikh _{1,

2,

3,

4} , Aanchal Sahu _{1,

2,

3,

4} , A. Kiran Kumar _{5,

6,

7,

8} , Mahendra Sahu _{1,

2,

3,

4} , Sunil. K. Singh _{1,

2,

3,

4} , Kalluri V. S. Ranganath _{1,

2,

3,

4}

Affiliation

Herein, heterogeneous, inexpensive, metal-free, and environmentally friendly graphene oxide (GO) was developed for the oxidative polycoupling of 2-naphthols in aqueous sodium hydroxide in the presence of air. This study demonstrates that GO can function as a heterogeneous catalyst, and solvent plays a vital role in the coupling. Upon changing the solvent from toluene to water, transformation of products from homocoupling to polycoupling materials occurs.

中文翻译：

不含金属的碳作为氧化偶联的催化剂：具有区域选择性的溶剂增强聚偶联

本文中，开发了用于在空气存在下在氢氧化钠水溶液中将2-萘酚氧化聚偶联的异质，廉价，无金属且环保的氧化石墨烯（GO）。这项研究表明，GO可以用作多相催化剂，并且溶剂在偶联过程中起着至关重要的作用。将溶剂从甲苯变为水后，就会发生产物从均偶联剂向多偶联材料的转化。

更新日期：2017-09-21

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