Title of article
Direct observation by 1H NMR of 4,5-benzoxepin-2,3-oxide and its surprisingly rapid ring-opening rearrangement to 1H-2-benzopyran-1-carboxaldehyde
Author/Authors
V.V.V.N.S. and Nauduri، نويسنده , , Dhananjaya and Greenberg، نويسنده , , Arthur، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2004
Pages
5
From page
4789
To page
4793
Abstract
The first unambiguous observation of an oxepin-2,3-oxide is reported. Between 5 and 10 °C it rearranges rapidly to its isomer 1H-2-benzopyran-1-carboxaldehyde. In contrast, 2,3-oxides of monocyclic oxepins rearrange to stable, ring-opened dialdehydes or diketones.
Keywords
oxepins , Dimethyldioxirane , Benzene oxidation
Journal title
Tetrahedron Letters
Serial Year
2004
Journal title
Tetrahedron Letters
Record number
1842100
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