ChemInform Abstract: Ruthenium-Catalyzed Dienyne Formation from Propargylic Alcohols and 1,3-Conjugated Dienes
Autor: | Keiichiro Kanao, Sakae Uemura, Youichi Inada, Yoshihiro Miyake, Masato Yoshikawa, Yoshiaki Nishibayashi, Ken Sakata, Masaki Daini |
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Rok vydání: | 2008 |
Předmět: | |
Zdroj: | ChemInform. 39 |
ISSN: | 1522-2667 0931-7597 |
Popis: | Ruthenium-catalyzed carbon−carbon bond forming reactions between propargylic alcohols and acyclic and cyclic 1,3-conjugated dienes give the corresponding dienyne compounds in good to high yields. Only the use of thiolate-bridged diruthenium complexes promotes the catalytic reactions, where a ruthenium−alkynyl complex, a resonance structure of a ruthenium−allenylidene complex, works as a key intermediate. This carbon−carbon bond forming reaction is considered to proceed via a stepwise reaction pathway. The finding described in this article reveals another novel catalytic reactivity of chalcogenolate-bridged diruthenium complexes. |
Databáze: | OpenAIRE |
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