作者:Laura Iannazzo、Naoko Kotera、Max Malacria、Corinne Aubert、Vincent Gandon
DOI:10.1016/j.jorganchem.2011.08.041
日期:2011.12
Alkynyl chlorides, bromides, and iodides have been tested as [2 + 2 + 2] cycloaddition partners using CpCo(CO)(dimethylfumarate) and Cp*Ru(cod)Cl as precatalysts. A series of cocyclizations between diynyl dihalides and alkynes, as well as intramolecular cycloadditions of triynyl dihalides, has been carried out. While this study confirmed the versatility of the ruthenium complex with all kinds of halides
使用CpCo(CO)(富马酸二甲酯)和Cp * Ru(cod)Cl作为预催化剂,已对炔基氯,溴化物和碘化物作为[2 + 2 + 2]环加成伙伴进行了测试。已经进行了二炔基二卤化物和炔烃之间的一系列共环化,以及三炔基二卤化物的分子内环加成。尽管这项研究证实了钌配合物与各种卤化物的通用性,但事实证明,廉价的空气稳定的钴配合物对炔基溴是有效的。