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Iridium-Catalyzed [2+2+2] Cycloaddition of α,ω-Diynes with Isocyanates

✍ Scribed by Onodera, Gen; Suto, Mari; Takeuchi, Ryo


Book ID
126922932
Publisher
American Chemical Society
Year
2011
Tongue
English
Weight
853 KB
Volume
77
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