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Iridium-Catalyzed [5 + 1] Cycloaddition: Allenylcyclopropane as a Five-Carbon Assembling Unit

✍ Scribed by Murakami, Masahiro; Itami, Kenichiro; Ubukata, Minoru; Tsuji, Itaru; Ito, Yoshihiko

Book ID: 121442512
Publisher: American Chemical Society
Year: 1998
Tongue: English
Weight: 62 KB
Volume: 63
Category: Article
ISSN: 0022-3263
DOI: 10.1021/jo9718859

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ChemInform Abstract: Iridium-Catalyzed [

ChemInform Abstract: Iridium-Catalyzed [5 + 1] Cycloaddition: Allenylcyclopropane as a Five-Carbon Assembling Unit.

✍ M. MURAKAMI; K. ITAMI; M. UBUKATA; I. TSUJI; Y. ITO 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 31 KB 👁 1 views

1,4-Pentenyne as a Five-Carbon Synthon f

1,4-Pentenyne as a Five-Carbon Synthon for Efficient and Selective Syntheses of Natural Products Containing 2,4-Dimethyl-1-penten-1,5-ylidene and Related Moieties by Means of Zr-Catalyzed Carboalumination of Alkynes and Alkenes

✍ Gangguo Zhu; Ei-ichi Negishi 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 375 KB

## Abstract Two highly efficient protocols for enantioselective synthesis of 2,4‐dimethyl‐1‐penten‐1,5‐ylidene derivatives involve the combined use of the Zr‐catalyzed methylalumination of alkynes (ZMA) and the Zr‐catalyzed asymmetric carboalumination of alkenes (ZACA). The ZMA/ZACA protocol has be