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Communication | Regular issue | Vol 16, No. 10, 1981, pp.1651-1658
Published online, 1st January, 1970
DOI: 10.3987/R-1981-10-1651
Substitutent Effects on the Course of the Reductive Acylation of Penicillin Sulfoxide Derived Sulfenates

Leilani V. Kapili, Michael S. Kellogg,* and Robert J. Martingano

*Central Research Division, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, U.S.A.


Reductive acylation of penicillanate sulfoxide derived sulfenates with trivalent phosphorous compounds and acetic anhydride has been shown to give β-lactam products resulting from either oxygen or sulfur transfer to phosphorous dependent on the substituent at the C-6 position of the penicillanate.