NbCl5/Zn/PCy3-System-Catalyzed Intramolecular [2 + 2 + 2] Cycloadditions of Diynes and Alkenes To Form Bicyclic Cyclohexadienes,Organic Letters

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NbCl5/Zn/PCy3-System-Catalyzed Intramolecular [2 + 2 + 2] Cycloadditions of Diynes and Alkenes To Form Bicyclic Cyclohexadienes
Organic Letters ( IF 4.9 ) Pub Date : 2017-09-14 00:00:00 , DOI: 10.1021/acs.orglett.7b02672
Keisuke Watanabe ₁ , Yasushi Satoh ₁ , Motofumi Kamei ₁ , Hirohisa Furukawa ₁ , Maito Fuji ₁ , Yasushi Obora ₁

Affiliation

A NbCl₅, Zn, and PCy₃ catalytic system that generated low-valent Nb species is used for the synthesis of bicyclic cyclohexadienes from diynes and simple alkenes. A phosphine ligand is important for stabilizing low-valent Nb in the cycloaddition. The bicyclic cyclohexadiene skeleton is important in transition-metal-catalyzed intramolecular cycloadditions.

中文翻译：

NbCl ₅ / Zn / PCy _3-系统催化的二炔和烯烃的分子内[2 + 2 + 2]环加成反应形成双环环己二烯

甲NbCl ₅，Zn和PCY ₃催化系统，该系统产生的低原子价的Nb物种被用于从二炔和简单烯烃的双环环己二烯的合成。膦配体对于稳定环加成中的低价Nb很重要。双环环己二烯骨架在过渡金属催化的分子内环加成反应中很重要。

更新日期：2017-09-14

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