Oxidation of alkoxyphenols. Part 23. A re-examination of the reaction of 5,5′-dimethoxy-3,3′-di-t-butylbiphenyl-2,2′-diol with lead tetraacetate: crystal structure of the product

F. Richmond Hewgill, David G. Hewitt, Graeme B. Howie, Colin L. Raston, Rauleigh J. Webb, Allan H. White

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The major product of the reaction, previously described as an acetoxybenzoxet, is now shown to be 4,10a-dihydro-7-methoxy-4-oxo-2,9-di-t- butyloxepino[2,3-b]benzofuran-10a-yl acetate (4). This assignment is based on X-ray cristallographic analysis of the corresponding benzoate. The biphenyl system is re-formed on reduction of the acetate, and reaction with acid converts the acetate into benzofuran-3(2H)-one derivatives.

Original languageEnglish
Pages (from-to)290-298
Number of pages9
JournalJournal of the Chemical Society, Perkin Transactions 1
Issue number0
DOIs
Publication statusPublished - 1979
Externally publishedYes

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