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[ CAS No. 126120-85-2 ] {[proInfo.proName]}

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Chemical Structure| 126120-85-2
Chemical Structure| 126120-85-2
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Quality Control of [ 126120-85-2 ]

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Product Details of [ 126120-85-2 ]

CAS No. :126120-85-2 MDL No. :MFCD01631473
Formula : C8H4F2O4 Boiling Point : No data available
Linear Structure Formula :- InChI Key :ZGAQVJDFFVTWJK-UHFFFAOYSA-N
M.W : 202.11 Pubchem ID :2774067
Synonyms :

Safety of [ 126120-85-2 ]

Signal Word:Danger Class:9
Precautionary Statements:P273-P280-P305+P351+P338 UN#:3077
Hazard Statements:H302-H318-H410 Packing Group:Ⅲ
GHS Pictogram:

Application In Synthesis of [ 126120-85-2 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 126120-85-2 ]

[ 126120-85-2 ] Synthesis Path-Downstream   1~15

  • 1
  • [ 624-92-0 ]
  • [ 126120-85-2 ]
  • 2,2-difluoro-7-methylsulfanyl-1,3-benzodioxole-4-carboxylic acid [ No CAS ]
  • 2
  • [ 126120-85-2 ]
  • 7-chloro-2,2-difluoro-1,3-benzodioxole-4-carboxylic acid [ No CAS ]
  • 3
  • [ 126120-85-2 ]
  • [ 74-88-4 ]
  • 2,2-difluoro-7-methyl-1,3-benzodioxole-4-carboxylic acid [ No CAS ]
  • 4
  • [ 1583-59-1 ]
  • [ 124-38-9 ]
  • [ 126120-85-2 ]
  • 5
  • [ 67-56-1 ]
  • [ 126120-85-2 ]
  • [ 531508-32-4 ]
  • 6
  • [ 917-54-4 ]
  • [ 126120-85-2 ]
  • [ 126120-83-0 ]
  • 7
  • [ 126120-85-2 ]
  • [ 143096-86-0 ]
  • 9
  • [ 126120-85-2 ]
  • [ 106876-54-4 ]
  • 12
  • [ 126120-85-2 ]
  • (2,2-difluoro-1,3-benzodioxol-4-yl)ethanone oxime [ No CAS ]
  • 13
  • [ 67-72-1 ]
  • [ 126120-85-2 ]
  • 7-chloro-2,2-difluoro-1,3-benzodioxole-4-carboxylic acid [ No CAS ]
YieldReaction ConditionsOperation in experiment
42% With hydrogenchloride; n-butyllithium; In tetrahydrofuran; hexane; water; a) 7.5 g (0.038 mol) of <strong>[126120-85-2]2,2-difluoro-1,3-benzodioxole-4-carboxylic acid</strong>, prepared according to the process described in European Application 0,333,658, are dissolved, with stirring and under an argon atmosphere, in 75 ml of dry tetrahydrofuran (THF). ml (0.081 mol) of n-butyllithium in solution in hexane are run in dropwise at -70 C. After stirring for 1 hour, 8.9 g (0.038 mol) of hexachloroethane in solution in 50 ml of dry tetrahydrofuran (THF) are run in. After 2 hours at -70 C., the temperature is allowed to return to 10 C. The reaction mixture is hydrolyzed with 150 ml of ice-cold water and brought to a pH of approximately 1 by addition of 1N hydrochloric acid. The aqueous phase is extracted with ether, dried over magnesium sulphate and concentrated under vacuum. The solid is washed with heptane to give 3.7 g (0.016 mol) of 7-chloro-<strong>[126120-85-2]2,2-difluoro-1,3-benzodioxole-4-carboxylic acid</strong> (yield: 42%; melting point: 185 C.).
YieldReaction ConditionsOperation in experiment
61% EXAMPLE 7 The procedure of Example 1 is followed except that CO2 is passed in instead of adding trifluoroacetyl-N-methylpiperazide. 2,2-Difluoro-1,3-benzodioxole-4-carboxylic acid is obtained in a yield of 61%.
  • 15
  • [ 126120-85-2 ]
  • [ 162506-37-8 ]
  • [ 143096-86-0 ]
YieldReaction ConditionsOperation in experiment
With thionyl chloride; In 1,2-dichloro-ethane; N,N-dimethyl-formamide; toluene; Reference Example 4 <strong>[126120-85-2]2,2-Difluoro-1,3-benzodioxole-4-carboxylic acid</strong> (15.0 g) was dissolved in 1,2-dichloroethane and N,N-dimethylformamide and thionyl chloride (10.6 g) added. The mixture was heated under reflux for 1 hour, and the solvent evaporated in vacuo. The residue was dissolved in toluene and re-evaporated to yield 2,2-difluoro-1,3-benzodioxol-4-oyl chloride (17.35 g). By proceeding in a similar manner 2,2-difluoro-7-methylsulphenyl-1,3-benzodioxol-4-oyl chloride was prepared.
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