83007-72-1Relevant academic research and scientific papers
An Efficient Synthesis of 6-Oxopenicillanic and 7-Oxocephalosporanic Acid Derivatives
Hagiwara, Daijiro,Sawada, Kozo,Ohnami, Tetsuo,Aratani, Matsuhiko,Hashimoto, Masashi
, p. 578 - 579 (2007/10/02)
Trifluoromethanesulphonation of benzyl 6-aminopenicillanate (3) and the 7-aminocephalosporanates (7a-c) with (CF3SO2)2O gave the bis(trifluoromethylsulphonate) derivatives (5) and (8a-c), which were then converted into the imines (6) and (9a-c) by treatme
