Journal
TETRAHEDRON
Volume 59, Issue 39, Pages 7787-7790Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4020(03)01173-6
Keywords
alkynes; copper alkynides; cesium effect; skipped diynes; natural products synthesis
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An improved methodology for the preparation of copper(1) alkynides has been developed using cesium carbonate as base. In the presence of cesium carbonate and CuI various 1-alkynes were converted smoothly to the corresponding copper alkynides which in situ reacted with propargylic halides in order to synthesize skipped diynes. (C) 2003 Elsevier Ltd. All rights reserved.
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