Title of article
A new synthesis of highly functionalized 2H-pyran derivatives
Author/Authors
Issa Yavari، نويسنده , , Mohammad Bayat، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2003
Pages
5
From page
2001
To page
2005
Abstract
Ethyl oxo-(2-oxo-cycloalkyl)-ethanoates undergo a smooth reaction with triphenylphosphine and dialkyl acetylenedicarboxylates via intramolecular Wittig reaction to produce spiro-cyclobutene derivatives. These spiro systems undergo electrocyclic ring opening reaction to produce electron-deficient 1,3-dienes, which spontaneously cyclize to 2H-pyran derivatives.
Keywords
cyclobutene , spiro systems , CH-acid , acetylenic esters , 2H-pyran , intramolecular Wittig reaction
Journal title
Tetrahedron
Serial Year
2003
Journal title
Tetrahedron
Record number
1087618
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