Journal
TETRAHEDRON
Volume 56, Issue 13, Pages 1851-1857Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4020(00)00115-0
Keywords
palladium-catalyzed; allene; propargyl halides
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The palladium-catalyzed reaction of propargyl halides, tosylates and acetates with terminal alkynes is reported. The best yields are obtained from propargyl chlorides and 1-alkynes (i) in the presence of 2 equiv. of amine (triethylamine, diisopropylamine) in benzene, toluene or ethylacetate (ii) or in pure diisopropylamine. Propargyl acetates undergo the cross coupling reaction with moderate to high yields after modification of the general procedure. (C) 2000 Elsevier Science Ltd. All rights reserved.
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