ChemicalBook--->CAS DataBase List--->155731-14-9

155731-14-9

155731-14-9 Structure

155731-14-9 Structure
IdentificationBack Directory
[Name]

5-Chloro-N-tert-butyl-2-thiophenesulfonamide
[CAS]

155731-14-9
[Synonyms]

N-tert-Butyl-5-chlorothiophene sulfonamide
5-Chloro-N-tert-butyl-2-thiophenesulfonamide
N-tert-Butyl 5-Chloro-2-thiophenesulfonamide
N-(tert-Butyl)-5-chlorothiophene-2-sulfonamide
N-(tert-Butyl)-5-chlorothiophene-2-sulphonamide
5-Chlorothiophene-2-sulfonic acid tert-butylamide
2-Thiophenesulfonamide, 5-chloro-N-(1,1-dimethylethyl)-
5-Chloro-N-tert-butyl-2-thiophenesulfonamide ISO 9001:2015 REACH
[Molecular Formula]

C8H12ClNO2S2
[MDL Number]

MFCD05086586
[MOL File]

155731-14-9.mol
[Molecular Weight]

253.77
Chemical PropertiesBack Directory
[Boiling point ]

349.1±52.0 °C(Predicted)
[density ]

1.328
[storage temp. ]

Keep in dark place,Inert atmosphere,Room temperature
[pka]

11.53±0.50(Predicted)
Safety DataBack Directory
[Symbol(GHS) ]

GHS hazard pictograms
GHS07
[Signal word ]

Warning
[Hazard statements ]

H315-H319-H335
[Precautionary statements ]

P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P362+P364-P403+P233-P501c
[Hazard Codes ]

Xi
[HS Code ]

2934999090
Hazard InformationBack Directory
[Synthesis]

5-Chlorothiophene-2-sulfonyl chloride

2766-74-7

tert-Butylamine

75-64-9

5-Chloro-N-tert-butyl-2-thiophenesulfonamide

155731-14-9

A. General procedure for the synthesis of (tert-butyl)[(5-chloro(2-thienyl))sulfonyl]amine (0316): 5.5 g (27.5 mmol) of 5-chlorothiophene-2-sulfonyl chloride was dissolved in anhydrous THF at 0 °C, and 5.7 mL (75.5 mmol) of tert-butyl amine was slowly added. The reaction mixture was gradually warmed to 23 °C and the reaction was stirred. After completion of the reaction, the reaction mixture was diluted with 125 mL of ether and filtered to remove insoluble material. The filtrate was washed sequentially with 1N HCl and brine and then dried over anhydrous MgSO4. Finally, the solvent was removed by vacuum concentration to give 6.4 g (98% yield) of the target compound as an oil.

[References]

[1] Patent: EP2314593, 2016, B1. Location in patent: Paragraph 0316
[2] Pharmazie, 1994, vol. 49, # 2-3, p. 115 - 117
[3] Patent: US2002/77486, 2002, A1
[4] Patent: US6906063, 2005, B2
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