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Fluorochloridone, also known as FLC, is a monophenyl pyrrolidinone selective herbicide that is used in herbicidal compositions to control weeds in crop fields. It is specifically designed to inhibit the growth of weeds that occur during the growth of crop plants, such as grains, sunflowers, and potatoes.

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  • 61213-25-0 Structure
  • Basic information

    1. Product Name: Fluorochloridone
    2. Synonyms: r40244;(3RS,4RS,3RS,4RS)-3-chloro-4-chloromethyl-1-α,α,α-trifluoro-m-tolyl-2-pyrrolidone(3:1);3-chloro-4-(chloromethyl)-1-(3-(trifluoromethyl)phenyl)-2-pyrrolidione;FLUROCHLORIDON (MIXTURE OF ISOMERS),PEST;flurochloridone (bsi,draft e-iso,draft f-iso);raiser;(3RS, 4RS;(3RS,4RS
    3. CAS NO:61213-25-0
    4. Molecular Formula: C12H10Cl2F3NO
    5. Molecular Weight: 312.12
    6. EINECS: 262-661-3
    7. Product Categories: HERBICIDE;Alpha sort;E-GAlphabetic;F;FA - FLPesticides&Metabolites;Herbicides;Others;Pesticides&Metabolites
    8. Mol File: 61213-25-0.mol
  • Chemical Properties

    1. Melting Point: 67.65°C
    2. Boiling Point: 453.7 °C at 760 mmHg
    3. Flash Point: >100 °C
    4. Appearance: /
    5. Density: 1.3924 (estimate)
    6. Vapor Pressure: 2.02E-08mmHg at 25°C
    7. Refractive Index: 1.536
    8. Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
    9. Solubility: DMSO (Slightly), Methanol (Slightly)
    10. PKA: -3.59±0.60(Predicted)
    11. CAS DataBase Reference: Fluorochloridone(CAS DataBase Reference)
    12. NIST Chemistry Reference: Fluorochloridone(61213-25-0)
    13. EPA Substance Registry System: Fluorochloridone(61213-25-0)
  • Safety Data

    1. Hazard Codes: Xi
    2. Statements: 36/37/38
    3. Safety Statements: 26-27-36/37/39
    4. WGK Germany:
    5. RTECS: UY5746500
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 61213-25-0(Hazardous Substances Data)

61213-25-0 Usage

Uses

Used in Agriculture:
Fluorochloridone is used as a selective herbicide for controlling weeds in crop fields. It is particularly effective against weeds that compete with crop plants for nutrients, sunlight, and space, thereby ensuring healthy growth and higher yields of crops such as grains, sunflowers, and potatoes.
Used in Herbicidal Compositions:
Fluorochloridone is used as an active ingredient in herbicidal compositions, which are formulated to provide targeted weed control. These compositions are designed to be applied to the soil or foliage of crop plants, where they work to inhibit the growth and development of unwanted weeds, allowing the crops to thrive without competition.

Synthesis

The synthesis of Fluorochloridone is as follows:To a 1L three-neck flask, N-allyl-N-dichloroacetyl-m-trifluoromethylaniline (31.1 g, 0.1 mol) and 715 ml of 1,2-dichloroethane were added as a solvent, dissolved under stirring, and then added. Cuprous chloride (2.97g, 0.03mol) and 2,2-bipyridyl (4.68g, 0.03mol) were reacted at 80°C for 3 hours, cooled to room temperature, and the reaction solution was filtered through a short silica gel column to give dichloromethane. Elution and desolvation yielded 31.3 g of pyrotropone, a content of 97%, an anti-contrast ratio of ≥3:1, and a yield of 97.6%.

Metabolic pathway

From hydrolytic and photolytic studies of flurochloridone in buffer solution, no hydrolysis of flurochloridone occurs at pH 5, 7, or 9 at 25°C or at pH 5 at 40°C. Appreciable hydrolysis occurs at 40°C at pH 7 and 9 with half-lives of 190 and 140 days, respectively. Five hydrolytic degradation products and six photolytic degradation products are identified. The major photolytic degradation product which contains 39% of the radioactivity is 4-(chloromethyl)-3-hydroxy-1-[3- (trifluoromethyl)phenyl]-2-pyrrolidinone with a mixture of cis and trans isomers. The formation of this major degradation product suggests that the major photolytic pathway involves homolytic cleavage of the carbon ? chlorine bond at the 3-position of the pyrrolidinone ring and the free radical intermediate can react with water to give the major product or eliminate the hydrogen radical to form 4- (chloromethyl)-1,5-dihydro-1-[3- (trifluoromethyl)phenyl]pyrrol-2H-one.

Mode of action

Flurochloridone is the active substance of some pre-emergence herbicides. It has an inhibitory effect on the synthesis of carotenoids, which protect chlorophylls against oxidative stress.

Toxicity evaluation

The acute oral LD50 of male rats is 4000 mg/kg, the acute transdermal LD50 of rabbits is >5000 mg/kg, and the acute inhalation of rats is LC50 10.3 mg/L (4h). Slightly irritating to rabbit skin and eyes.

Check Digit Verification of cas no

The CAS Registry Mumber 61213-25-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,1,2,1 and 3 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 61213-25:
(7*6)+(6*1)+(5*2)+(4*1)+(3*3)+(2*2)+(1*5)=80
80 % 10 = 0
So 61213-25-0 is a valid CAS Registry Number.
InChI:InChI=1/C12H10Cl2F3NO/c13-5-7-6-18(11(19)10(7)14)9-3-1-2-8(4-9)12(15,16)17/h1-4,7,10H,5-6H2

61213-25-0SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name flurochloridone

1.2 Other means of identification

Product number -
Other names Flurochloridon

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:61213-25-0 SDS

61213-25-0Synthetic route

N-allyl-N-dichloroacetyl-m-trifluoromethylaniline
61219-95-2

N-allyl-N-dichloroacetyl-m-trifluoromethylaniline

fluorochloridone
61213-25-0

fluorochloridone

Conditions
ConditionsYield
With [2,2]bipyridinyl; copper(l) chloride In 1,2-dichloro-ethane at 80℃; for 3h; Temperature;97.6%
fluorochloridone
61213-25-0

fluorochloridone

4-chloromethyl-1-(3-trifluoromethyl-phenyl)-2-pyrrolidone
61213-51-2

4-chloromethyl-1-(3-trifluoromethyl-phenyl)-2-pyrrolidone

Conditions
ConditionsYield
With hydrogenchloride; copper(II) sulfate In ethanol41.44 g (93%)

61213-25-0Relevant articles and documents

Synthesis method for improving purity of fluorochloridone

-

Paragraph 0026; 0031-0039; 0043-0049; 0053-0059; 0063-0068.., (2021/07/10)

The invention discloses a synthesis method for improving the purity of fluorochloridone, and belongs to the technical field of pesticide intermediates. The synthesis method comprises the following steps: S1, taking a compound shown as a formula (III) and allyl chloride as raw materials, taking an alkaline solution or a salt solution as a solvent, carrying out catalytic reaction at 20-25 DEG C under the action of a phase transfer catalyst, and treating after the reaction is finished to obtain a compound shown as a formula (II); S2, taking the compound as shown in the formula (II) as a raw material, taking anhydrous 1, 2-dichloroethane as a solvent, and carrying out reflux reaction at 80-100 DEG C for 4-6 hours under the combined catalytic action of cuprous chloride and 2, 2-dipyridyl, so as to prepare a mixture containing fluorochloridone; and S3, purifying the fluorochloridone. During purification, an extraction solvent is adopted, large-polarity by-products can be removed to a great extent, and residues are simply stirred and washed by n-hexane, so that a fluorochloridone raw material medicine with the purity of more than 95% can be obtained.

Process for improving cyclization synthesis yield of fluorochloridone

-

Paragraph 0012-0018, (2018/04/21)

The invention relates to a process for improving a cyclization synthesis yield of fluorochloridone. The process comprises the following steps: performing a reaction by taking N-allyl-N-dichloroacetyl-meta-trifluoromethylaniline as a raw material, taking anhydrous 1,2-dichloroethane as a solvent, wherein the amount of the solvent is controlled to be 10-45mL based on each gram of the raw material, taking cuprous chloride as a main catalyst, taking 2,2'-dipyridyl as a co-catalyst, wherein the molar ratio of the main catalyst to the co-catalyst is controlled to be 1:1, the usage amount of the catalysts is 10-30mol%, and the reaction temperature is controlled to be 70-90 DEG C until the raw material disappears, filtering the reaction liquid through a silica gel column, and performing elution with dichloromethane to obtain the fluorochloridone. Compared with the prior art, the process provided by the invention only needs the short silica gel column for filtration, and can obtain the fluorochloridone original medicine with the content of 95% or more, the ratio of a trans-form medicine to a cis-form medicine of 3:1 or more and the cyclization yield of 95% or more without the need of purification such as distillation and recrystallization.

Synergistic herbicidal compositions

-

, (2008/06/13)

Synergistic herbicidal activity is displayed by compositions comprising the following two components: (a) a pyrrolidone of the formula STR1 in which X is selected from the group consisting of hydrogen, chlorine and methyl; Y is selected from the group consisting of hydrogen, chlorine and bromine; Z is selected from the group consisting of chlorine and bromine; R1 is selected from the group consisting of hydrogen and C1 -C4 alkyl; R2 is selected from the group consisting of hydrogen, halogen, C1 -C4 alkyl, acetyl, trifluoromethyl, nitro, cyano, C1 -C4 alkoxy, C1 -C4 alkylthio, C1 -C4 alkylsulfinyl, C1 -C4 alkylsulfonyl, trifluoromethylsulfinyl, trifluoromethylsulfonyl, pentafluoropropionamido, and 3-methylureido; and R3 is selected from the group consisting of hydrogen, C1 -C4 alkyl, chlorine and trifluoromethyl; and (b) a phosphonic acid of the formula STR2 in which R4 is selected from the group consisting of C1 -C4 alkyl, C1 -C4 haloalkyl, and --CH2 NHCH2 COOH, at a weight ratio of (a) to (b) of from about 0.1:1 to about 20:1.

Synergistic herbicidal compositions

-

, (2008/06/13)

Synergistic herbicidal activity is displayed by composition comprising the following two components: (a) a pyrrolidone of the formula STR1 in which X is selected from the group consisting of hydrogen, chlorine, and methyl; Y is selected from the group consisting of hydrogen, chlorine, and bromine; Z is selected from the group consisting of chlorine and bromine; R1 is selected from the group consisting of hydrogen and C1 -C4 alkyl; R2 is selected from the group consisting of hydrogen, C1 -C4 alkyl, acetyl, trifluoromethyl, nitro, cyano, C1 -C4 alkoxy, C1 -C4 alkylthio, C1 -C4 alkylsulfinyl, C1 -C4 alkylsulfonyl, trifluoromethylthio, trifluoromethylsulfinyl, trifluoromethylsulfonyl, pentafluoropropionamido, and 3-methylureido; and R3 is selected from the group consisting of hydrogen, C1 -C4 alkyl, chlorine and trifluoromethyl; and (b) a cyclohexenedione of the formula STR2 in which R4 is 1'-(2-hydroxyethylimino)ethyl or acetyl, at a weight ratio of (a) to (b) of from about 0.01:1 to about 10:1.

Synergistic herbicidal compositions

-

, (2008/06/13)

Synergistic herbicidal activity is displayed by compositions comprising the following two components: (a) a pyrrolidone of the formula STR1 in which X is selected from the group consisting of hydrogen, chlorine and methyl; Y is selected from the group consisting of hydrogen, chlorine and bromine; Z is selected from the group consisting of chlorine and bromine; R1 is selected from the group consisting of hydrogen and C1 -C4 alkyl; R2 is selected from the group consisting of hydrogen, halogen, C1 -C4 alkyl, acetyl, trifluoromethyl, nitro, cyano, C1 -C4 alkoxy, C1 -C4 alkylthio, C1 -C4 alkylsulfinyl, C1 -C4 alkylsulfonyl, trifluoromethylthio, trifluoromethylsulfinyl, trifluoromethylsulfonyl, pentafluoropropionamido, and 3-methylureido; and R3 is selected from the group consisting of hydrogen, C1 -C4 alkyl, chlorine and trifluoromethyl; and (b) a m-ureidophenyl carbamate of the formula STR2 in which R4 is C1 -C4 alkyl; R5 is C1 -C4 alkyl; and R6 is selected from the group consisting of hydrogen and C1 -C4 alkyl, 1t a weight ratio of (a) to (b) of from about 0.1: to about 50:1.

Synergistic herbicidal compositions

-

, (2008/06/13)

Synergistic herbicidal activity is displayed by a composition comprising the following two components: (a) a pyrrolidone of the formula STR1 in which X is selected from the group consisting of hydrogen, chlorine and methyl; Y is selected from the group consisting of hydrogen, chlorine and bromine; Z is selected from the group consisting of chlorine and bromine; R1 is selected from the group consisting of hydrogen and C1 -C4 alkyl; R2 is selected from the group consisting of hydrogen, C1 -C4 alkyl, acetyl, trifluoromethyl, nitro, cyano, C1 -C4 alkoxy, C1 -C4 alkylthio, C1 -C4 alkylsulfonyl, C1 -C4 alkylsulfinyl, trifluoromethylthio, trifluoromethylsulfinyl, trifluoromethylsulfonyl, pentafluoropropionamido, and 3-methylureido; and R3 is selected from the group consisting of hydrogen, C1 -C4 alkyl, chlorine and trifluoromethyl; and (b) a urea of the formula STR2 in which R4 is selected from the group consisting of phenyl and substituted phenyl, wherein the substituents are selected from the group consisting of p-chlorophenoxy and alkylacetamido; R5 is selected from the group consisting of hydrogen and C1 -C4 alkyl; and R6 is selected from the group consisting of C1 -C4 alkyl and C1 -C4 alkoxy; at a weight ratio of (a) to (b) of from about 0.01:1 to about 20:1.

Synergistic herbicidal compositions

-

, (2008/06/13)

Synergistic herbicidal activity is displayed by a composition comprising the following two components: (a) a pyrrolidone of the formula STR1 in which X is selected from the group consisting of hydrogen, chlorine, and methyl; Y is selected from the group consisting of hydrogen, chlorine, and bromine; Z is selected from the group consisting of chlorine and bromine; R1 is selected from the group consisting of hydrogen and C1 -C4 alkyl; R2 is selected from the group consisting of hydrogen, C1 -C4 alkyl, acetyl, trifluoromethyl, nitro, cyano, C1 -C4 alkoxy, C1 -C4 alkylthio, C1 -C4 alkylsulfonyl, C1 -C4 alkylsulfinyl, trifluoromethylthio, trifluoromethylsulfinyl, trifluoromethylsulfonyl, pentafluoropropionamido, and 3-methylureido; and R3 is selected from the group consisting of hydrogen, C1 -C4 alkyl, chlorine and trifluoromethyl; and (b) 3-amino-1,2,4-triazole, at a weight ratio of (a) to (b) of from about 0.01:1 to about 20:1.

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