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Iridium complex catalyzed carbonylative alkyne-alkyne coupling for the synthesis of cyclopentadienones
T Shibata1, K Yamashita, H Ishida
1Department of Chemistry, Faculty of Science, Okayama University, Tsushima, Okayama 700-8530, Japan. tshibata@cc.okayama-u.ac.jp
Organic Letters
|May 12, 2001
Abstract:
[reaction: see text]. Catalytic carbonylative alkyne-alkyne coupling proceeds using iridium-phosphine complexes under carbon monoxide at atmospheric pressure or a partial pressure of 0.2 atm. This reaction provides various cyclopentadienones in high isolated yields.