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[ CAS No. 1753-75-9 ]

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Chemical Structure| 1753-75-9
Chemical Structure| 1753-75-9
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CAS No. :1753-75-9 MDL No. :MFCD00460091
Formula : C6H3BrN2S Boiling Point : 272.2°C at 760 mmHg
Linear Structure Formula :- InChI Key :N/A
M.W :215.07 g/mol Pubchem ID :2776295
Synonyms :

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Signal Word:Warning Class:N/A
Precautionary Statements:P305+P351+P338 UN#:N/A
Hazard Statements:H302-H319 Packing Group:N/A
GHS Pictogram:

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  • Upstream synthesis route of [ 1753-75-9 ]
  • Downstream synthetic route of [ 1753-75-9 ]

[ 1753-75-9 ] Synthesis Path-Upstream   1~2

  • 1
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  • [ 1753-75-9 ]
YieldReaction ConditionsOperation in experiment
86% for 1 h; Heating / reflux Example 2
Synthesis of 5-bromo-2,1,3-benzothiadiazole
A mixture was prepared by mixing 4.0 g (21 mmol) of 4-bromo-o-phenylenediamine, 14 mL of thionyl chloride and 0.62 mL of concentrated sulfuric acid and was refluxed for one hour.
This mixture was cooled and then poured onto ice, and a resulting precipitate was filtered and collected.
This precipitate was washed with water till the waste water became neutral and then thoroughly dried to yield 4.5 g of 5-bromo-2,1,3-benzothiadiazole as a crude product (melting point, 48 to 50° C.; yield, 96.5percent).
Reference: [1] RSC Advances, 2016, vol. 6, # 71, p. 66978 - 66989
[2] Patent: US2009/149676, 2009, A1, . Location in patent: Page/Page column 5
[3] ChemMedChem, 2018, vol. 13, # 21, p. 2332 - 2348
[4] Chemistry of Heterocyclic Compounds (New York, NY, United States), 1967, vol. 3, p. 662 - 666[5] Khimiya Geterotsiklicheskikh Soedinenii, 1967, vol. 3, # 5, p. 839 - 844
[6] Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1979, vol. 17, p. 13 - 16
[7] Journal of Heterocyclic Chemistry, 1970, vol. 7, p. 629 - 633
[8] Patent: US2004/152738, 2004, A1,
[9] Chemistry - A European Journal, 2010, vol. 16, # 3, p. 899 - 906
[10] Chemistry--A European Journal, 2012, vol. 18, # 37, p. 11685 - 11694,10
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Reference: [1] Zhurnal Obshchei Khimii, 1957, vol. 27, p. 2599,2603; engl. Ausg. S. 2656, 2659
[2] Chemistry of Heterocyclic Compounds (New York, NY, United States), 1967, vol. 3, p. 662 - 666[3] Khimiya Geterotsiklicheskikh Soedinenii, 1967, vol. 3, # 5, p. 839 - 844
[4] Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1979, vol. 17, p. 13 - 16
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