Title of article
Microwave-accelerated Claisen rearrangements of allyl tetronates and tetramates
Author/Authors
Schobert، نويسنده , , Rainer and Gordon، نويسنده , , Gary J. and Mullen، نويسنده , , Gillian and Stehle، نويسنده , , Ralf، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2004
Pages
4
From page
1121
To page
1124
Abstract
[3,3]-Sigmatropic rearrangements of allyl tetronates and allyl tetramates to give 3-allyltetronic or -tetramic acids, respectively, proceed within 20–60 min under microwave irradiation (300 W, 130–190 °C). Consecutive (homo)sigmatropic [1,5] H-shifts such as oxa-ene reactions are promoted less effectively, which allows the isolation of Claisen intermediates of sigmatropic domino sequences, in contrast to conventional heating.
Keywords
Tetronic acid , Claisen rearrangement , microwave , Tetramates
Journal title
Tetrahedron Letters
Serial Year
2004
Journal title
Tetrahedron Letters
Record number
1656910
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