COMPOSITION FOR REGULATING PLANT GROWTH, METHOD FOR TREATING PLANTS THEREWITH, AND ACTIVE INGREDIENT THEREOF
申请人:Gorbunov Sergei Valeryevich
公开号:US20190119193A1
公开(公告)日:2019-04-25
A composition for regulating plant growth, the active ingredient of which is an ester of oxaloacetic acid or a salt thereof, or derivatives thereof, wherein the ester of oxaloacetic acid has the formula set forth below, where R
1
and R
2
are independently selected from a series of C
1
-C
18
alkyl groups, and wherein the content of the active ingredient corresponds to a concentration of from 10
−11
M to 10
−3
M. The active ingredients and compositions for regulating plant growth allow for treating plants in order to stimulate the growth thereof and achieve such advantages as increased yields, improved plant quality, improved nutrient absorption and enhanced stress resistance, while allowing such advantages to be achieved using a relatively small amount of an active ingredient(s) which is/are biodegradable and environmentally friendly.
Process for preparing pyridine-2,3-dicarboxylic acid compounds
申请人:SUGAI CHEMICAL INDUSTRY CO., LTD.
公开号:EP0274379A2
公开(公告)日:1988-07-13
A process for preparing pyridine-2,3-dicarboxylic acid compounds of the following formula:
wherein R¹ and R³ are, identical or different, each a hydrogen atom or a lower alkyl group, R² is a hydrogen atom, a lower alkyl group, or a phenyl-(lower)alkyl group which may have halogen atom or lower alkyl group on its phenyl ring, and R⁴ and R⁵ are, identical or different, each a lower alkoxy group.
The compounds are useful as an intermediate for preparing agricultural chemicals and pharmaceuticals.
PROCESS FOR PREPARING PYRIDINE-2,3-DICARBOXYLIC ACID COMPOUNDS
申请人:SUGAI CHEMICAL INDUSTRY CO., LTD.
公开号:EP0357792A1
公开(公告)日:1990-03-14
A pyridine-2,3-dicarboxylic acid compound represented by general formula (I) (wherein R' and R2 may be the same or different and each represents a lower alkyl group, and R3 represents a hydrogen atom or a lower alkyl group) is prepared by reacting an alkali metal salt of oxalacetic acid diester with an acid and a halogenating agent or reacting an oxalic acid diester with a haloacetic acid ester to obtain an α-halooxalacetic acid diester, and reacting the formed diester with a 2-propenal compound and ammonia. The obtained compounds are useful as intermediates for agricultural chemicals and medicines.