Abstract:
PURPOSE: Provided are derivatives of 9-(5-isoxazolinemethoxyphenyl)imino-8-thia-1.6-diazabicylco£4.3.0|nonane-7-one, represented by the formula(1) and herbicides containing them as active ingredients and having excellent herbicidal activity and selectivity when applied to a rice paddy. CONSTITUTION: Derivatives are represented by the formula(1), wherein R is C1-C6 alkyl, phenyl or substituted phenyl, wherein substituents are 1-3 of halogen atom, C1-C3 alkyl, C1-C3 alkoxy, C1-C3 haloalkyl, cyano, nitro, carboxyl and esters of carboxy acid.
Abstract:
PURPOSE: A process for preparing 3-chloro-2- (4-chloro-2-fluoro-5-hydroxyphenyl)- 4,5,6,7-tetrahydro-2H-indazole is provided, thereby improving its preparation yield and converting by-products of the preparation into starting material. CONSTITUTION: A process for preparing 3-chloro-2- (4-chloro-2-fluoro-5-hydroxyphenyl)- 4,5,6,7-tetrahydro-2H-indazole of the formula 1 comprises the steps of: reacting 2- (2-fluoro-4-chloro-5-hydroxyphenyl)- 2,3a,4,5,6,7- hexahydroindazole-3-one of the formula 2 with phosgene; concentrating the phosgene reaction mixture under reduced pressure; dissolving the concentrate in an organic solvent; adding ammonia water or hydroxide solution to the organic solvent and filtering solids; and distilling the filtrated solution, wherein the organic solvent is ethylacetate; the addition of ammonia water or hydroxide solution is carried out at room temperature; the solids are mainly constituted of a compound of the formula 2, and the by-products of the reaction include a dimer represented by the formula 3a, 3b or 3c.
Abstract:
PURPOSE: Provided is a novel photochromic diarylethene substituted with isoxazol group. Therefore, the photochromic diarylethene is excellent in dispersion with fluoro diacrylate monomer capable of being photopolymerized and a thin film manufactured therefrom has excellent photochromic property when irradiating UV and mechanical strength. CONSTITUTION: The novel photochromic diarylethene substituted with isoxazol group is represented by the formula(1) and manufactured by the steps of: formylating diarylethene compound of the formula(2); adding NH2OH·HCl and basic solution sequentially then adding N-chlorosuccin imide(NSC); and adding R2 substituted acetylene compound and basic catalyst.
Abstract:
PURPOSE: Provided is 5-benzyloxymethyl-1,2-isoxazoline derivative which has an excellent herbicidal activity. Also, provided are its manufacturing method and herbicides containing the derivative as an active ingredient. CONSTITUTION: 5-benzyloxymethyl-1,2-isoxazoline derivative is represented by the formula(I), wherein X1, X2 and X3 individually represent hydrogen, methyl group, ethyl group, halogen group, methoxy group or nitro group (provided that it is an exception that X1, X2 and X3 are decimals all together); Y1, Y2 and Y3 are individually hydrogen or fluorine.