Puniyani, Sushil; Srivastava, T. S., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1987, vol. 26, # 12, p. 1015 - 1018
Puniyani, Sushil; Srivastava, T. S., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1987, vol. 26, # 12, p. 1015 - 1018
Direct N–O bond formation <i>via</i> oxidation of amines with benzoyl peroxide
作者:Amit Banerjee、Hisashi Yamamoto
DOI:10.1039/c8sc04996c
日期:——
(amide) formation starting from commercially available amines and benzoylperoxide. The oxidation of 1,2-diamines to furnish bis-(benzoyloxy)-1,2-diamines is reported for the first time. We found that a significant amount of water (BPO : water = 3 : 1) in combination with Cs2CO3 is necessary to achieve high selectivity and yield. The reaction conditions are applicable to a wide range of 1,2-diamine
Salts in the Preparation of Cephalosporin Antibiodies
申请人:Senthilkumar Udayampalayam P.
公开号:US20080306256A1
公开(公告)日:2008-12-11
The present invention relates to an improved process for the preparation of cephalosporin antibiotics of formula (I). The present invention also provides new salts of compound of formula (II) and a process for the preparation of these new salts, where n=0.5 to 2. The present invention also provides a process for the preparation of compound of formula (I) using the new salts of formula (II).