METHOD FOR PRODUCING POLYCYCLIC AROMATIC COMPOUND SUBSTITUTED BY ARYL GROUP
申请人:National University Corporation Nagoya University
公开号:EP2730554A1
公开(公告)日:2014-05-14
PAH is subjected to C-H/C-B coupling using a specific boron compound, a palladium compound, and o-chloranil to produce a compound in which a C-H bond of the PAH is directly arylated regioselectively in a simple manner. When the substrate and the boron compound are appropriately selected, a larger PAH can also be obtained by further performing an annulation reaction after the coupling reaction. Similarly, when PAH is subjected to C-H/C-H cross-coupling using a specific aromatic compound, a palladium compound, and o-chloranil, a compound in which a C-H bond of the PAH is directly arylated regioselectively can be produced in a simple manner. When the substrate and the aromatic compound are appropriately selected in this case, a larger PAH can also be obtained by further performing an annulation reaction after the cross-coupling reaction.
[EN] METHOD FOR PRODUCING POLYCYCLIC AROMATIC COMPOUND SUBSTITUTED BY ARYL GROUP<br/>[FR] PROCÉDÉ DE PRODUCTION D'UN COMPOSÉ AROMATIQUE POLYCYCLIQUE SUBSTITUÉ PAR UN GROUPE ARYLE
We have discovered that the combination of Pd(OAc)(2)/o-chloranil can catalyze the direct C-H bond arylation of polycyclic aromatic hydrocarbons (PAHs) with arylboroxins that occurs selectively at the K-region. The sequential integration of Pd-catalyzed directarylation of PAHs and FeCl(3)-mediated cyclodehydrogenation is effective in rapidly extending a parent PAH π-system with high directionality