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Synthesis 2007(15): 2313-2316
DOI: 10.1055/s-2007-966069
DOI: 10.1055/s-2007-966069
PAPER
© Georg Thieme Verlag Stuttgart · New YorkTransition-Metal-Based Synthesis of Dendralenes
Further Information
Received
20 March 2007
Publication Date:
11 May 2007 (online)
Publication History
Publication Date:
11 May 2007 (online)

Abstract
The consecutive ring-closing enyne metathesis of allylsilyl propargyl ethers with Grubbs’ ruthenium-alkylidene catalyst, followed by rhenium oxide mediated 1,4-elimination of the Si-O moiety from the siloxenes, provides [3]- and [4]dendralenes in good yields.
Key words
dendralenes - enynes - ring-closing metathesis - 1,4-eliminations - rhenium oxide
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References
The stereochemistry of 8a and 8b was assigned in analogy to that of 3g.