KATRITZKY, A. R.;BRZEZINSKI, J. Z.;OU, YU, XIANG;MUSUMARRA, G., J. CHEM. SOC. PERKIN TRANS., 1983, N 9, 1463-1469
作者:KATRITZKY, A. R.、BRZEZINSKI, J. Z.、OU, YU, XIANG、MUSUMARRA, G.
DOI:——
日期:——
Kinetics and mechanisms of nucleophilic displacements with heterocycles as leaving groups. Part 14. The preparation and reactions of some further α-heteroaryl-pyridinium salts
作者:Alan R. Katritzky、Jacek Z. Brzezinski、Yu Xiang Ou、Giuseppe Musumarra
DOI:10.1039/p29830001463
日期:——
dihydrocarbazole and dihydrobenzothiophene rings and α-benzothiazole substituents are described, together with their conversion to a variety of derived pyridiniums. The N-(2-pyridyl) grouprearranges thermally at 60°C from the pyridinium nitrogen to the nitrogen atom of a 2-(2-benzimidazolyl) group [in (19)]; similar rearrangement in the carbazole (7) is complicated by dehydrogenation. Compared with