4.4 Article

Regio- and stereoselective preparation of γ-alkylidenebutenolides or α-pyrones using a Stille reaction and palladium-catalysed oxacyclisation sequence

Journal

TETRAHEDRON LETTERS
Volume 44, Issue 41, Pages 7633-7636

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2003.08.043

Keywords

butenolides; pyran-2-one; palladium catalyst; heteroannulation

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Synthesis of butenolides or alpha-pyrones from substituted tributylstannyl acetylides is highly dependant on the nature of the acetylide. (C) 2003 Elsevier Ltd. All rights reserved.

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