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[ CAS No. 25834-16-6 ]

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Chemical Structure| 25834-16-6
Chemical Structure| 25834-16-6
Structure of 25834-16-6 * Storage: {[proInfo.prStorage]}

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Product Details of [ 25834-16-6 ]

CAS No. :25834-16-6 MDL No. :MFCD01117424
Formula : C8H2Br2O3 Boiling Point : -
Linear Structure Formula :- InChI Key :N/A
M.W :305.91 g/mol Pubchem ID :-
Synonyms :

Safety of [ 25834-16-6 ]

Signal Word:Warning Class:N/A
Precautionary Statements:P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313 UN#:N/A
Hazard Statements:H315-H319 Packing Group:N/A
GHS Pictogram:

Application In Synthesis of [ 25834-16-6 ]

  • Downstream synthetic route of [ 25834-16-6 ]

[ 25834-16-6 ] Synthesis Path-Downstream   1~15

  • 1
  • [ 85-44-9 ]
  • [ 25834-16-6 ]
YieldReaction ConditionsOperation in experiment
15% With sulfuric acid; dibromohydantoin,; for 4.0h; 592 g of phthalic anhydride was added to 1 L of concentrated sulfuric acid (70% by mass), and the mixture was dissolved and dissolved. After the solution was dissolved, 572 g of dibromohydantoin was added in three portions.The temperature was controlled by a water bath. After mechanical stirring for 4 hours, the reaction system was poured into 2.5 L of ice water, and 5 L of dichloromethane was added thereto, stirred well, and suction filtered.The filter cake was washed with dichloromethane, and 1.25 L of a saturated aqueous sodium thiosulfate solution was added to the filtrate to remove brown.The organic layer was dried over anhydrous sodium sulfate and evaporatedThe mixture was heated to reflux with ethyl acetate, and then filtered, and then filtered, and ethyl acetate was evaporated to give a white solid (I) (3,6-dibromophthalic anhydride) in a yield of 15%.
  • 2
  • [ 25834-16-6 ]
  • [ 123-31-9 ]
  • [ 42985-19-3 ]
  • 3
  • 3,6-dibromophthalic acid [ No CAS ]
  • [ 25834-16-6 ]
YieldReaction ConditionsOperation in experiment
69% With acetic anhydride; for 1.0h;Reflux; 3,6-dibromophthalic acid (34c) (2.5 g, 7.71 mmol) was refluxed for 1 hour with acetic anhydride (8.33 ml, 81.5 mmol). The reaction mixture was cooled in an ice bath and the resulting precipitate was filtered, washed with cold ether and dried under reduced pressure to afford 4,7-dibromoisobenzofuran- l ,3-dione (34d) (1.6 g , 69 %) as a solid. MS (EI) m/z: 306.9 (M+ l). ? NMR (400 MHz, DMSO): 8 8.05 (s, 2H).
  • 5
  • [ 25834-16-6 ]
  • <i>N</i>-methylene-glycine nitrile [ No CAS ]
  • [ 857802-04-1 ]
  • 6
  • [ 25834-16-6 ]
  • [ 56073-96-2 ]
  • 3,6-dibromo-<i>N</i>-[4-(2-methoxycarbonylamino-1<i>H</i>-benzoimidazol-5-ylsulfanyl)-phenyl]-phthalamic acid [ No CAS ]
  • 7
  • [ 25834-16-6 ]
  • [ 56073-96-2 ]
  • sodium; 3,6-dibromo-2-[4-(2-methoxycarbonylamino-1<i>H</i>-benzoimidazol-5-ylsulfanyl)-phenylcarbamoyl]-benzoate [ No CAS ]
  • 8
  • [ 25834-16-6 ]
  • <i>N</i>,<i>N</i>-(3,6-dibromo-phthaloyl)-glycine [ No CAS ]
  • 9
  • [ 25834-16-6 ]
  • <i>N</i>,<i>N</i>-(3,6-dibromo-phthaloyl)-glycin-amide [ No CAS ]
YieldReaction ConditionsOperation in experiment
Typical halogen-containing anhydrides include: 3-chlorophthalic anhydride, 4-bromophthalic anhydride, 3,6-dibromophthalic anhydride, tetrabromophthalic anhydride, tetrachlorophthalic anhydride, 1,4,5,6,7,7-hexachlorobicyclo(2.2.1)-5-heptene-2,3-dicarboxylic anhydride. 1,4,5,6,7,7-hexachloro-2-methylbicyclo(2.2.1)-5-heptene-2,3-dicarboxylic anhydride, 1,4,5,6,7,7-hexachlorobicyclo(2.2.1)-5-heptene-2-acetic-2-carboxylic anhydride 5,6,7,8,9,9-hexachloro-1,2,3,4,4a,5,8,8a-octahydro-5,8-methano-2,3-naphthalene dicarboxylic anhydride, ...
  • 12
  • [ 104-75-6 ]
  • [ 25834-16-6 ]
  • [ 863027-98-9 ]
YieldReaction ConditionsOperation in experiment
In acetic acid; Example 1 N-(2-ethylhexyl)-3,6-dibromophthalimide: <strong>[25834-16-6]3,6-Dibromo phthalic anhydride</strong> (1.53 g, 5 mmol), 2-ethylhexyl amine (0.84 g, 6.5 mmol) and glacial acetic acid (30 ml) were combined and refluxed under argon for two hours. After most of the acetic acid was removed under reduced pressure, N-(2-ethylhexyl)-3,6-dibromophthalimide was separated via column chromatography (silica gel, dichloromethane:hexanes 1:3). Colorless crystals were obtained after recrystallization from hexanes (1.88 g, 90%). 1H NMR (CDCl3, 400 MHz, ppm): delta 7.63 (s, 2H), 3.56 (d, 2H), 1.80 (m, 1H), 1.29 (m, 8H), 0.88 (m, 6H). 13C NMR (CDCl3, 100 MHz, ppm): delta 165.34, 139.71, 131.42, 117.71, 42.66, 38.46, 30.77, 28.76, 24.09, 23.16, 14.26, 10.59. mp: 65 C. GC-MS: m/z: 415 (C16H19Br2NO2+), 319 (100%). Anal. Calcd for C16H19Br2NO2(%): C, 46.07; H, 4.59; N, 3.36.
  • 14
  • [ 25834-16-6 ]
  • [ 1219795-55-7 ]
  • 15
  • [ 62281-06-5 ]
  • [ 25834-16-6 ]
  • [ 1391835-88-3 ]
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