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Iridium Complex-Catalyzed [2+2+2] Cycloaddition of α,ω-Diynes with Monoynes and Monoenes

✍ Scribed by Kezuka, Satoko; Tanaka, Shigeru; Ohe, Toshihito; Nakaya, Yoshihiko; Takeuchi, Ryo


Book ID
126800032
Publisher
American Chemical Society
Year
2006
Tongue
English
Weight
198 KB
Volume
71
Category
Article
ISSN
0022-3263

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Iridium complex-catalyzed [2+2+2] cycloa
✍ Ryo Takeuchi; Shigeru Tanaka; Yoshihiko Nakaya 📂 Article 📅 2001 🏛 Elsevier Science 🌐 French ⚖ 84 KB

Ir(cod)Cl] 2 combined with dppe was found to be a new and efficient catalyst for [2+2+2] cycloaddition. Dimethyl dipropargylmalonate reacted with 1-hexyne in the presence of a catalytic amount of [Ir(cod)Cl] 2 combined with dppe at room temperature in 20 min to give an indane derivative in 84% yield