Indium(III) chloride catalyzed one step synthesis of some new dibenzo(d,f)(1,3)dioxepines and 12H-dibenzo(d,g)(1,3)dioxocin derivatives

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• 作者：Tocco ; Graziella ; Begala ; Michela ; Delogu ; Giovanna ; Picciau ; Carmen ; Podda ; Gianni
• 关键词：Synthesis ; Heterocycles ; Indium trichloride ; Dibenzo(d ; f)(1 ; 3)dioxepines ; 12H-Dibenzo(d ; g)(1 ; 3)dioxocins
• 刊名：Tetrahedron Letters
• 出版年：2004
• 出版时间：September 6, 2004
• 年：2004
• 卷：45
• 期：37
• 页码：6909-6913
• 全文大小：286 K

文摘

In the presence of catalytic amount of indium(III) chloride (10mol % ), 2,2aaa-dihydroxybiphenyl and bis(2-hydroxyphenyl)methane react quickly, without using any solvent, with ketones or aa-keto esters possessing at least one hydrogen atom in aa to the ketone-carbonyl group, to afford some new dibenzo(d,f)(1,3)dioxepines and some 12H-dibenzo(d,g)(1,3)dioxocin derivatives, respectively.