RECOGNIZED N-DEMETHYLATION &/OR N-DEMETHOXYLATION REACTIONS OF PHENYLUREA HERBICIDES IN BIOLOGICAL ENVIRONMENTS--CHLORTOLURON-- SOIL/MICROBIAL MEDIA: IN SILTY CLAY SOIL; PLANTS: IN WHEAT; MAMMALS: IN RAT /FROM TABLE/
...FATE OF (14)C-TOLYL-LABELED HERBICIDE /CHLORTOLURON/ IN RAT. ...METHYL RING SUBSTITUENT WAS SUBJECTED TO STEPWISE OXIDATION, YIELDING FIRST CORRESPONDING HYDROXYMETHYL AND THEN CARBOXY DERIVATIVE. ... COMBINED N-DEMETHYLATION/SIDE-CHAIN OXIDATION PATHWAY IN RATS IS /SRP: 3-(3-CHLORO-4-HYDROXYMETHYLPHENYL)-1,1-DIMETHYLUREA; 3-(3-CHLORO-4-CARBOXYPHENYL)-1,1-DIMETHYLUREA; 3-(3-CHLORO-4-HYDROXYMETHYLPHENYL)-1-METHYLUREA; 3-(3-CHLORO-4-CARBOXYPHENYL)-1-METHYLUREA; 3-(3-CHLORO-4-HYDROXYMETHYLPHENYL)UREA AND 3-(3-CHLORO-4-CARBOXYPHENYL)UREA/.
THE METABOLISM OF CHLORTOLURON IN WHEAT EXHIBITED ESSENTIALLY THE SAME QUALITATIVE PATTERN OF DEGRADATION. HOWEVER, THE MAJOR PORTION OF THE HYDROXYMETHYL METABOLITE (3-(3-CHLORO-4-HYDROXYMETHYLPHENYL)-1,1-DIMETHYLUREA) WAS FIRST TRAPPED AS WATER-SOL CONJUGATE(S). FURTHER OXIDATION TO CORRESPONDING CARBOXY DERIVATIVE OCCURRED ONLY IN LATER STAGES OF PLANT GROWTH. IN ADDN, N-DEMETHYLATION DID NOT PROCEED BEYOND N-MONOMETHYL STAGE.
The metabolism of chlortoluron was investigated in several plant species. Chlortoluron was degraded via both N-demethylation and ring-methyl oxidation reactions. The latter pathway was the major degradative route in wheat and barley. Since the products of ring-methyl oxidation are nonphytotoxic, the existence of such a detoxification mechanism in these cereals may account for their enhanced resistance to chlortoluron. The major metabolites in the susceptible cereal weeds, Avena fatua, Alopecurus myosuroides and Lolium perenne, and in resistant cotton were products of N-demethylation. This reaction in the cereal weeds proceeded only very slightly beyond the state the mono-N-demethylated metabolites some of which retain considerable phytotoxicity. In cotton, however, N-demethylation was more efficient, giving rise to substantial amounts of N-didemethylated metabolites which are non-phytotoxic.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
暴露途径
该物质可以通过吸入其气溶胶和通过吞食被吸收进人体。
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
毒理性
眼睛症状
Redness.
Redness.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
Levels of cytochrome p450s and rates of monooxygenase activities were studied in microsomes prepared from wheat cell suspension cultures. Cytochrome contents and enzymatic activities, namely, the enzymatic systems responsible for chlorotoluron ring-methy1 hydroxy1ation and N-demethylation, were enhanced after pretreatment of cells with 2,4-D, procloraz, mecoprop, chlorotoluron, and oxime ether safeners. Effects of various agrochemicals were also determined on chlorotoluron ring-methyl hydroxylase and N-demethylase, following their direct addition to microsomal preparations. Plant growth regulators and fungicide, as well as piperonyl butoxide decreased both activities, tetcyclacis, and procloraz being marked1y inhibitory. Naphthalic anhydride, oxime ether safeners, dich1ormid, and tridiphane had only weak effects. The substrate specificities of chlorotoluron ring-methyl hydroxylase and N-demethylase were also investigated using structural analogues of the herbicide. Diuron was the strongest inhibitor among the tested phenylureas. Other herbicides that can be metabolized by wheat affected both activities to different extents. However, diclofop enhanced only chlorotoluron N-demethylase.
1. WASH CONTAMINATED SKIN WITH SOAP & WATER. 2. FLUSH CONTAMINATED EYES WITH COPIOUS AMOUNTS OF FRESH WATER FOR 15 MINUTES. 3. INGESTIONS OF SMALL AMOUNTS (LESS THAN 10 MG/KG BODY WEIGHT) OCCURRING LESS THAN AN HOUR BEFORE TREATMENT, ARE PROBABLY BEST TREATED BY: A. SYRUP OF IPECAC, FOLLOWED BY 1-2 GLASSES OF WATER. DOSE FOR ADULTS & CHILDREN OVER 12 YEARS: 30 ML. DOSE FOR CHILDREN UNDER 12 YEARS: 15 ML. B. ACTIVATED CHARCOAL: /PRC: 30 G ACTIVATED CHARCOAL IN 3-4 OZ WATER (CHILDREN), 100 G IN 8-10 OZ WATER (ADULT)/...AFTER VOMITING STOPS. C. SODIUM OR MAGNESIUM SULFATE, 0.25 G/KG IN TAP WATER, AS A CATHARTIC. /PESTICIDES OF LOW OR MODERATE TOXICITY/
4. INGESTIONS OF LARGE AMOUNTS (MORE THAN 10 MG/KG) OCCURRING LESS THAN AN HR BEFORE TREATMENT, SHOULD PROBABLY BE TREATED BY GASTRIC LAVAGE: A. INTUBATE STOMACH & ASPIRATE CONTENTS. B. LAVAGE STOMACH WITH SLURRY OF ACTIVATED CHARCOAL.../&/ LEAVE 30-50 G ACTIVATED CHARCOAL IN THE STOMACH BEFORE WITHDRAWING TUBE. C. SODIUM SULFATE, 0.25 G/KG IN TAP WATER, AS A CATHARTIC. CAUTION: HYDROCARBONS (KEROSENE, PETROLEUM DISTILLATES) ARE INCLUDED IN SOME FORMULATIONS OF THESE CHEMICALS. INGESTION OF VERY LARGE AMOUNTS MAY CAUSE CNS DEPRESSION. IN THIS CASE, IPECAC IS CONTRAINDICATED. ALSO, GASTRIC INTUBATION INCURS A RISK OF HYDROCARBON PNEUMONITIS. FOR THIS REASON OBSERVE THE FOLLOWING PRECAUTIONS: (1) IF THE VICTIM IF UNCONSCIOUS OR OBTUNDED & FACILITIES ARE AT HAND, INSERT AN ENDOTRACHEAL TUBE (CUFFED, IF AVAILABLE) PRIOR TO GASTRIC INTUBATION. (2) KEEP VICTIM'S HEAD BELOW LEVEL OF STOMACH DURING INTUBATION & LAVAGE /PRC: TAP WATER IN CHILDREN, ISOTONIC SALINE IN ADULTS/ (TRENDELENBURG, OR LEFT LATERAL DECUBITUS, WITH HEAD OF TABLE TIPPED DOWNWARD). KEEP VICTIM'S HEAD TURNED TO THE LEFT. (3) ASPIRATE PHARYNX AS REGULARLY AS POSSIBLE TO REMOVE GAGGED OR VOMITED STOMACH CONTENTS. /PESTICIDES OF LOW OR MODERATE TOXICITY/
...(TOLYL-(14)C)CHLORTOLURON WAS ADMIN DAILY TO RATS FOR...2 WK...CONCN OF RADIOACTIVITY IN BLOOD & VARIOUS ORGANS REACHED THEIR HIGHEST LEVEL ON 1ST OR 2ND DAY...& DID NOT INCR FOR REMAINDER OF EXPT. ...WHEN FEEDING OF LABEL WAS ABANDONED, RADIOACTIVITY IN ALL TISSUES DECR BELOW DETECTABLE LEVELS WITHIN...9 DAYS.
...PHENYLUREAS LABELED WITH (14)C IN DIFFERENT POSITIONS WERE ADMIN ORALLY TO RATS, IT WAS OBSERVED THAT TOTAL RADIOACTIVITY WAS RAPIDLY & EFFICIENTLY ELIMINATED IN URINE & FECES. ...90% OR MORE OF RADIOACTIVITY APPLIED WAS ACCOUNTED FOR IN EXCRETA WITHIN 72 HR AFTER ADMIN...(TOLYL-(14)C)CHLORTOLURON. WITH MOST MENTIONED CMPD /(TOLYL-(14)C)CHLORTOLURON/ MAJOR PORTION OF LABEL WAS ELIMINATED IN URINE, WHEREAS AMT OF FECAL RADIOACTIVITY WAS USUALLY NO MORE THAN 20% IN TERMS OF DOSE APPLIED.
1.周国泰,化学危险品安全技术全书,化学工业出版社,1997 2.国家环保局有毒化学品管理办公室、北京化工研究院合编,化学品毒性法规环境数据手册,中国环境科学出版社.1992 3.Canadian Centre for Occupational Health and Safety,CHEMINFO Database.1998 4.Canadian Centre for Occupational Health and Safety, RTECS Database, 1989
[EN] ACC INHIBITORS AND USES THEREOF<br/>[FR] INHIBITEURS DE L'ACC ET UTILISATIONS ASSOCIÉES
申请人:GILEAD APOLLO LLC
公开号:WO2017075056A1
公开(公告)日:2017-05-04
The present invention provides compounds I and II useful as inhibitors of Acetyl CoA Carboxylase (ACC), compositions thereof, and methods of using the same.
[EN] 3-[(HYDRAZONO)METHYL]-N-(TETRAZOL-5-YL)-BENZAMIDE AND 3-[(HYDRAZONO)METHYL]-N-(1,3,4-OXADIAZOL-2-YL)-BENZAMIDE DERIVATIVES AS HERBICIDES<br/>[FR] DÉRIVÉS DE 3-[(HYDRAZONO))MÉTHYL]-N-(TÉTRAZOL-5-YL)-BENZAMIDE ET DE 3-[(HYDRAZONO)MÉTHYL]-N-(1,3,4-OXADIAZOL-2-YL)-BENZAMIDE UTILISÉS EN TANT QU'HERBICIDES
申请人:SYNGENTA CROP PROTECTION AG
公开号:WO2021013969A1
公开(公告)日:2021-01-28
The present invention related to compounds of Formula (I): or an agronomically acceptable salt thereof, wherein Q, R2, R3, R4, R5 and R6 are as described herein. The invention further relates to compositions comprising said compounds, to methods of controlling weeds using said compositions, and to the use of compounds of Formula (I) as a herbicide.
[EN] INSECTICIDAL TRIAZINONE DERIVATIVES<br/>[FR] DÉRIVÉS DE TRIAZINONE INSECTICIDES
申请人:SYNGENTA PARTICIPATIONS AG
公开号:WO2013079350A1
公开(公告)日:2013-06-06
Compounds of the formula (I) or (I'), wherein the substituents are as defined in claim 1, are useful as pesticides.
式(I)或(I')的化合物,其中取代基如权利要求1所定义的那样,可用作杀虫剂。
[EN] HERBICIDALLY ACTIVE HETEROARYL-S?BSTIT?TED CYCLIC DIONES OR DERIVATIVES THEREOF<br/>[FR] DIONES CYCLIQUES SUBSTITUÉES PAR HÉTÉROARYLE À ACTIVITÉ HERBICIDE OU DÉRIVÉS DE CELLES-CI
申请人:SYNGENTA LTD
公开号:WO2011012862A1
公开(公告)日:2011-02-03
The invention relates to a compound of formula (I), which is suitable for use as a herbicide wherein G is hydrogen or an agriculturally acceptable metal, sulfonium, ammonium or latentiating group; Q is a unsubstituted or substituted C3-C8 saturated or mono-unsaturated heterocyclyl containing at least one heteroatom selected from O, N and S, or Q is heteroaryl or substituted heteroaryl; m is 1, 2 or 3; and Het is an optionally substituted monocyclic or bicyclic heteroaromatic ring; and wherein the compound is optionally an agronomically acceptable salt thereof.
The present invention provides triazole compounds useful as inhibitors of Acetyl CoA Carboxylase (ACC), compositions thereof, and methods of using the same.