Method for the preparation of 3-phenyl-5-substituted-4(1H)-pyrid

Details Method for the preparation of 3-phenyl-5-substituted-4(1H)-pyrid Method for the preparation of 3-phenyl-5-substituted-4(1H)-pyrid

1977-09-08

1978-11-28

Rotman, Alan L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546296, 542455, C07D21304

Patent

active

041275810

ABSTRACT:
A class of herbicidal 3-phenyl-5-substituted-4(1H)-pyridones are prepared from .beta.-aminostyrenes by reaction with bromoacetyl bromide to form an .alpha.-bromoacetyl-.beta.-aminostyrene which is reacted with an anion to form a .alpha.-substituted acetyl-.beta.-aminostyrene which is then cyclized to the pyridone by formylation and reaction with a primary amine.

REFERENCES:
patent: 4065290 (1977-12-01), Taylor

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