Palladium-Catalyzed Terminal Alkyne Coupling Reaction of β-Bromo-β-phenylthio or β-Methylthio-α-trifluoromethyl Enol Ethers : a Convenient Synthesis of 2-Sulfonyl-1-buten-3-ynes

Mitsuhiro YOSHIMATSU; Sayaka KINOSHITA; Tomomi SUGIMOTO

doi:10.1248/cpb.47.1497

Chemical and Pharmaceutical Bulletin

Online ISSN : 1347-5223
Print ISSN : 0009-2363

Palladium-Catalyzed Terminal Alkyne Coupling Reaction of β-Bromo-β-phenylthio or β-Methylthio-α-trifluoromethyl Enol Ethers : a Convenient Synthesis of 2-Sulfonyl-1-buten-3-ynes

Mitsuhiro YOSHIMATSU, Sayaka KINOSHITA, Tomomi SUGIMOTO

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Keywords: cross-coupling, fluoro enol ether, enyne, sulfide, sulfone

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Volume 47 (1999) Issue 10 Pages 1497-1500

DOI https://doi.org/10.1248/cpb.47.1497

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Abstract

2-Sulfonyl-1-buten-3-yne (2-sulfonyl enyne) 7 was obtained via the Pd-catalyzed cross-coupling reactions of β-bromo enol ethers 3 and 4 and successive oxidation with m-chloroperbenzoic acid.

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