Intramolecular general acid catalysis in the aminolysis of benzylpenicillin. A preferred direction of nucleophilic attack

Anthony F. Martin; Jeffrey J. Morris; Michael I. Page

doi:10.1039/C39790000298

Intramolecular general acid catalysis in the aminolysis of benzylpenicillin. A preferred direction of nucleophilic attack

Anthony F. Martin, Jeffrey J. Morris, Michael I. Page

School of Applied Sciences

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

The reaction of 1,2-diaminoethane monocation with benzylpenicillin shows a rate enhancement of ca. 100-fold compared with a monoamine of similar basicity; this is attributed to intramolecular general acid catalysis which in turn indicates that nucleophilic attack takes place from the least hindered α-side in disagreement with the prediction of the theory of stereoelectronic control.

Original language	English
Pages (from-to)	298-299
Number of pages	2
Journal	Journal of the Chemical Society, Chemical Communications
Issue number	6
DOIs	https://doi.org/10.1039/C39790000298
Publication status	Published - 1 Dec 1979

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abstract = "The reaction of 1,2-diaminoethane monocation with benzylpenicillin shows a rate enhancement of ca. 100-fold compared with a monoamine of similar basicity; this is attributed to intramolecular general acid catalysis which in turn indicates that nucleophilic attack takes place from the least hindered α-side in disagreement with the prediction of the theory of stereoelectronic control.",

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AB - The reaction of 1,2-diaminoethane monocation with benzylpenicillin shows a rate enhancement of ca. 100-fold compared with a monoamine of similar basicity; this is attributed to intramolecular general acid catalysis which in turn indicates that nucleophilic attack takes place from the least hindered α-side in disagreement with the prediction of the theory of stereoelectronic control.

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Intramolecular general acid catalysis in the aminolysis of benzylpenicillin. A preferred direction of nucleophilic attack

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