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Autor:
Caroline A. Robson, Ian R. Ager, Brian Edgar Looker, Peter G. Sammes, Gino Lucente, Ann Mowatt, David G. T. Greig, Graham Hewitt, Derek H. R. Barton, William George Elphi Underwood, Michael V. Taylor
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1. :1187
Norbornadiene, dimethyl acetylenedicarboxylate, and vinyl ethers react with the sulphenic acids produced by heating penicillin S-oxides. Norbornadiene, diketen (4-methyleneoxetan-2-one), and dimethyl acetylenedicarboxylate react by addition, whereas