Catalytic action of azolium salts. IV. Preparations of 4-aroylquinazolines and 4-aroyl-1H-pyrazolo[3,4-d]pyrimidines by catalytic action of 1,3-dimethylimidazolium iodide
The ability of 1,3-dimethylimidazolium iodide (1) to catalyze the aroylation of the chloroheteroarenes 4-8 with arenecarbaldehydes 3 as sources of the aroyl groups was examined in order to develop a preparative method of aroylheteroarenes. In the presence
Miyashita,Matsuda,Suzuki,Iwamoto,Higashino
p. 2017 - 2022
(2007/10/02)
Catalytic action of azolium salts. II. Aroylation of 4-chloroquinazolines with aromatic aldehydes catalyzed by 1,3-dimethylbenzimidazolium iodide
When a mixture of 4-chloroquinazoline (7), an aromatic aldehyde 6, sodium hydride, and a catalytic amount of 1,3-dimethylbenzimidazolium iodide (1) in tetrahydrofuran (THF) was refluxed with stirring for an appropriate time, the chlorine atom of 7 was rep
Miyashita,Matsuda,Iijima,Higashino
p. 43 - 48
(2007/10/02)
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