A PHOTOCHEMICAL REACTION OF 2-ALKOXY-3-BROMO-1,4-NAPHTHOQUINONE WITH 1,1-DIARYLETHYLENE—A NOVEL SYNTHETIC METHOD OF 5-ARYL-7,12-BENZ (a) ANTHRAQUINONES
Palladium-Catalyzed 1,2-Addition of Organic Halides and Terminal Alkynes to 7-Oxabenzonorbornadiene: An Efficient Route to Polyaromatic Hydrocarbons
作者:Chun-Jung Kuo、Shu-Jin Cheng、Shu-Ting Chang、Charng-Hsing Liu
DOI:10.1002/ejoc.200700772
日期:2008.1
coupling reaction of organichalides with oxabicyclic alkenes and terminalalkynes was catalyzed by a palladium complex and a phase-transfer agent in the presence of aqueous NaOH. The reaction gave a series of 5,6-disubstituated 7-oxabenzonorbornene derivatives in good yields. The disubstituted products from oxabenzonorbornadiene can be readily converted into polyaromatichydrocarbons by a Lewis acid mediated