K. Maeyama, K. Ogura, A. Okamoto
Oct 1, 2005
Citations
0
Influential Citations
23
Citations
Journal
Polymer Journal
Abstract
Abstract6,6′-Bis(chlorobenzoyl)-2,2′-dimethoxy-1,1′-binaphthyls 2a and 2b are prepared via P2O5–MsOH mediated regioselective diaroylation of 2,2′-dimethoxy-1,1′-binaphthyl (1). NiBr2/Zn-mediated aromatic coupling polymerization of 6,6′-bis(chlorobenzoyl)-2,2′-dimethoxy-1,1′-binaphthyls 2 yields the corresponding wholly aromatic polyketones. When optically active bis(chlorobenzoylated) binaphthyls (2) are employed, optically active wholly aromatic polyketones 3 with large specific rotations, excellent thermal resistance, and excellent solubility to organic solvents are obtained.