144740-55-6Relevant articles and documents
MANUFACTURING METHOD OF PYRIDINE COMPOUND
-
Paragraph 0023, (2019/12/25)
PROBLEM TO BE SOLVED: To provide a novel manufacturing method of a pyridine compound useful as a precursor of a heterocyclic amide compound useful as a herbicide. SOLUTION: There is provided a manufacturing method of a pyridine compound represented by the formula (1), including a process for reacting a cyano acetic acid ester compound represented by the formula (2) with an enone compound represented by the formula (3) in the presence of a base, then conducting a cyclization process by an acid treatment to generate a compound of the formula (1), and a process for extracting the resulting reaction product in a water layer, and then re-extracting the same in an organic layer. In the formula R1 represents an alkyl group having 1 to 3 carbon atoms, and R2 represents an alkyl group having 1 to 4 carbon atoms. SELECTED DRAWING: None COPYRIGHT: (C)2020,JPOandINPIT
PYRIDINECARBOXAMIDES, USEFUL-PLANT-PROTECTING COMPOSITION COMPRISING THEM AND PROCESSES FOR THEIR PREPARTION AND THEIR USE
-
Page/Page column 19, (2008/12/04)
Compounds of the formula (I), or salts thereof, in which R1 to R4 are as defined in formula (I) of claim 1 are suitable as useful-plant-protecting agents for reducing or preventing harmful effects of agrochemicals on the useful plants and their method of preparation are described.
Herbicidal pyridine sulfonamide
-
, (2008/06/13)
A pyridine sulfonylurea herbicide, composition thereof and a method for its use that results in the control of blackgrass in cereal crops and general control of all plant growth.