3-(Pyridinyl)-2-cyclohexen-1-ones

Details 3-(Pyridinyl)-2-cyclohexen-1-ones 3-(Pyridinyl)-2-cyclohexen-1-ones

1976-03-19

1977-05-31

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260297R, 260295R, 260296R, 2602475G, 26029369, C07D213350

Patent

active

040269000

ABSTRACT:
3-(4 OR 3-Pyridinyl)-2-cyclohexen-1-ones (I) and their oxime derivatives are useful in preparing (3-aminophenyl)-pyridines, in turn, useful in preparing known antibacterial agents. Also shown is the preparation of I by starting with the reaction of methyl vinyl ketone with either 1-(pyridinyl)-1-(lower-tertiary-amino)-ethylene (II) or lower-alkyl 3-(pyridinyl)-3-oxopropanoate. Also shown is the process of converting I to its oxime, acylating the oxime and heating the acylated oxime under acidic conditions to produce N-(lower-acyl)-3-(pyridinyl)-aniline (VII), and hydrolyzing VII under aqueous alkaline conditions to produce the corresponding 3-(pyridinyl)aniline.

REFERENCES:
patent: 3723532 (1973-03-01), Louvar
patent: 3969409 (1976-07-01), Miyano et al.

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