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Chemical Structure| 31862-80-3 Chemical Structure| 31862-80-3

Structure of 31862-80-3

Chemical Structure| 31862-80-3

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Product Details of [ 31862-80-3 ]

CAS No. :31862-80-3
Formula : C6H4BrNO4S
M.W : 266.07
SMILES Code : O=C(C1=CC(Br)=C([N+]([O-])=O)S1)OC
MDL No. :MFCD18905589
InChI Key :HGQUBXGVOBVNJN-UHFFFAOYSA-N
Pubchem ID :13291027

Safety of [ 31862-80-3 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501

Application In Synthesis of [ 31862-80-3 ]

* 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 [ 31862-80-3 ]

[ 31862-80-3 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 62224-16-2 ]
  • [ 31862-80-3 ]
YieldReaction ConditionsOperation in experiment
In sulfuric acid; c 4-Bromo-5-nitrothiophene-2-carboxylic acid Methyl Ester The nitrating mixture (HNO3 d=1.42, 2 mL; concentrated H2SO4, 6 mL) was slowly added with stirring, at -5 to -10 C., to <strong>[62224-16-2]4-Bromothiophene-2-carboxylic acid methyl ester</strong> (3 g, 13.57 mmol) dissolved in concentrated H2SO4 (10 mL). After being kept at -5 to -10 C. for 30 min. the mixture was poured over crushed ice. The solid precipitate was separated by filtration and washed with water and dried over P2O5 to give 3.7 g of 4-bromo-5-nitrothiophene-2-carboxylic acid methyl ester as a tan solid, which was used in the next step without further purification.
With sulfuric acid; nitric acid; at -10 - -5℃; for 0.5h; The nitrating mixture (HNO3 d =1.42, 2 ML ; concentrated H2SO4, 6 mL) was slowly added with stirring, AT-5o TO-10oC, to 4-Bromothiophene-2- carboxylic acid methyl ester (3 g, 13.57 mmol) dissolved in concentrated H2S04 (10 mL). After being kept at-5 to-10oC for 30 min. the mixture was poured over crushed ice. The solid precipitate was separated by filtration and washed with water and dried over P205 to give 3.7 g of 4-bromo-5- nitrothiophene-2-carboxylic acid methyl ester as a tan solid, which was used in the next step without further purification.
 

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