镍、锰、钴和铁催化的去质子芳烃二聚反应。
Nickel, manganese, cobalt, and iron-catalyzed deprotonative arene dimerization.
机构信息
Department of Chemistry, University of Houston, Houston, Texas 77204-5003, USA.
出版信息
Org Lett. 2010 Mar 19;12(6):1200-3. doi: 10.1021/ol902970z.
Abstract
A number of first-row transition metal salts catalyze deprotonative dimerization of acidic arenes. Under the atmosphere of oxygen, nickel, manganese, cobalt, and iron chlorides have been shown to dimerize five- and six-membered ring heterocycles as well as electron-poor arenes. Both tetramethylpiperidide and dicyclohexylamide bases can be employed; however, the former afford slightly higher yields.
摘要
一些第一行过渡金属盐催化酸性芳环的去质子二聚化。在氧气的气氛下，镍、锰、钴和氯化铁已被证明能使五元环和六元环杂环以及缺电子芳环二聚化。可以使用四甲基哌啶和二环己基酰胺碱；然而，前者能提供略高的产率。
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