Journal of Organic Chemistry p. 11604 - 11611 (2019)
Update date:2022-08-11
Topics:
Timelthaler, Daniel
Topf, Christoph
The given report introduces a simple and user-friendly in situ method for the production of catalytically active cobalt particles. The approach circumvents the use of air-and moisture-sensitive reductants as well as the application of anhydrous Co-precursor salts. Accordingly, the described catalytic system is readily assembled under open-flask conditions by simply combining the components in the reaction vessel. Therefore, the arduous charging procedure of the reaction autoclave in a glovebox under an inert gas atmosphere is no longer necessary. In fact, the catalytically active material is obtained upon treatment of readily available Co(OAc)2·4 H2O with benign commercial Zn powder. The catalytic performance of the resultant material was tested in the heterogeneous hydrogenation of nitriles to the corresponding primary amines. Both activity and selectivity of the cobalt catalyst are significantly enhanced if a triflate-based Lewis acid and ammonia is added to the reaction mixture.
View MoreShanghai Forever Synthesis Co.,Ltd.
Contact:021-61124658
Address:Zhoukang Road,Pudong New District,Shanghai,China
Nanjing Fayekong Chemcial Co.,Ltd
Contact:86-25-58813444
Address:Rm 1503, Unit 1, Building 5, Zijinnanyuan, Nanjing, Jiangsu, China
Zhushan County Tianxin Pharmaceutical & Chemical Co., Ltd.
Contact:0086-719-4224892
Address:Tutang Road, Chengguan Town, Zhushan County, Hubei Province
Shanghai Yuanye Bio-Technology Co., Ltd.
website:http://www.shyuanye.com
Contact:+86-21-61845781
Address:Building 6, No. 465, Changta Road,Songjiang District,Shanghai,China
HANGZHOU YUNUO CHEMICAL CO.,LTD
website:http://www.yunuochem.com
Contact:0571-83715115
Address:hangzhou
Doi:10.1016/0040-4039(95)01768-D
(1995)Doi:10.1016/S0040-4039(01)99412-2
(1959)Doi:10.1016/j.poly.2018.08.024
(2018)Doi:10.1016/j.tetlet.2020.152429
(2020)Doi:10.1021/ma011170e
(2002)Doi:10.1039/c7cc04090c
(2017)