Journal of Heterocyclic Chemistry p. 901 - 907 (1997)
Update date:2022-08-04
Topics:
Shiotani, Shunsaku
Tanigochi, Katsunori
The Grignard reaction of fused ring cyanopyridine derivatives 1a-d with methyl- and phenylmagnesium bromide yielded the corresponding acylpyridine compounds 2a-d and 3a-d. Furopyridine N-oxides 4a-d were converted into the compounds having a phenyl group at the α-position to the ring nitrogen 5a-d. Reduction of 1a-d and the carboxylic esters 6a-d with diisobutylaluminium hydride yielded the corresponding amines 7a-d and aldehydes 9a-d. The aldehydes were converted to nitroethanol derivatives 10a-d by condensation with nitromethane and acrylic ester compounds 11a-d by the Wittig-Horner reaction with methyl diethyl phosphonoacetate.
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