Industrial-Quality Graphene Oxide Switched Highly Efficient Metal- and Solvent-Free Synthesis of β-Ketoenamines under Feasible Conditions
详细信息 查看全文
- 作者：Dian Deng ; Lang Xiao ; Ill-Min Chung ; Ick Soo Kim ; Mayakrishnan Gopiraman
- 刊名：ACS Sustainable Chemistry & Engineering
- 出版年：2017
- 出版时间：February 6, 2017
- 年：2017
- 卷：5
- 期：2
- 页码：1253-1259
- 全文大小：518K
- ISSN：2168-0485
文摘
Metal- and solvent-free industrial-quality graphene oxide (IQGO)-based highly efficient carbocatalytic system has been developed for the synthesis of β-ketoenamines. Initially, physicochemical properties of IQGO are briefly discussed by means of various microscopic and spectroscopic techniques. The present system accessed a wide range of substrates to yield β-ketoenamines in an excellent yield (86–100%) with 100% selectivity. Catalytic activity of IQGO is compared with other carbon materials such as carbon nanotubes, carbon nanofibers, and graphene nanoplatelets. Cost effective recovery, high level reusability, chemoselective nature, possible scale reaction, and sustainability of IQGO are demonstrated. Based upon experimental results and earlier reports, possible reaction mechanism has been proposed for the synthesis of β-ketoenamines.