Glycerin and CeCl<sub>3</sub> · 7H<sub>2</sub>O: A New and Efficient Recyclable Reaction Medium for the Synthesis of Quinoxalines
作者:A. Venkat Narsaiah、J. Kranthi Kumar
DOI:10.1080/00397911.2010.533050
日期:2012.3.15
An efficient and environmentally benign process for the synthesis of quinoxalines has been developed using glycerine-cerium chloride as a reaction medium. This method is applicable to a variety of diketones and 1,2-phenylenediamines to afford the corresponding quinoxaline derivatives in excellent yields. The reaction medium was recovered and reused for further reactions without any problem.
US4734407A
申请人:——
公开号:US4734407A
公开(公告)日:1988-03-29
Alpha-aminoacyl-penicillins and cephalosporins
申请人:Bayer Aktiengesellschaft
公开号:US04734407A1
公开(公告)日:1988-03-29
Antibacterially active and animal growth-regulating novel .beta.-lactam compounds of the formula ##STR1## in which R.sup.1 represents an optionally substituted radical of the formula ##STR2## Z represents oxygen, sulphur or --N--R.sup.13, and A represents the group ##STR3##