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tert-butyl 4,5-dibromothiophen-2-ylcarbamate

CAS No.
943321-93-5
Chemical Name:
tert-butyl 4,5-dibromothiophen-2-ylcarbamate
Synonyms
tert-butyl 4,5-dibromothiophen-2-ylcarbamate;1,1-dimethylethyl (4,5-dibromo-2-thienyl)carbamate;Carbamic acid, N-(4,5-dibromo-2-thienyl)-, 1,1-dimethylethyl ester
CBNumber:
CB93075367
Molecular Formula:
C9H11Br2NO2S
Molecular Weight:
357.06
MDL Number:
MFCD25969363
MOL File:
943321-93-5.mol
MSDS File:
SDS
Last updated:2026-05-28 06:28:02

tert-butyl 4,5-dibromothiophen-2-ylcarbamate Properties

Boiling point 317.4±42.0 °C(Predicted)
Density 1.782±0.06 g/cm3(Predicted)
storage temp. under inert gas (nitrogen or Argon) at 2–8 °C
pka 12.09±0.70(Predicted)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P305+P351+P338

tert-butyl 4,5-dibromothiophen-2-ylcarbamate price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
aablocks AA01FORR tert-Butyl (4,5-dibromothiophen-2-yl)carbamate 97% 943321-93-5 100mg $103 2026-05-30 Buy
aablocks AA01FORR tert-Butyl (4,5-dibromothiophen-2-yl)carbamate 97% 943321-93-5 250mg $191 2026-05-30 Buy
Ambeed A146780 tert-Butyl(4,5-dibromothiophen-2-yl)carbamate 97% 943321-93-5 100mg $67 2021-12-16 Buy
BLDpharm BD758571 tert-Butyl(4,5-dibromothiophen-2-yl)carbamate 97% 943321-93-5 100mg $68 2021-12-16 Buy
Ambeed A146780 tert-Butyl(4,5-dibromothiophen-2-yl)carbamate 97% 943321-93-5 250mg $134 2021-12-16 Buy
Product number Packaging Price Buy
AA01FORR 100mg $103 Buy
AA01FORR 250mg $191 Buy
A146780 100mg $67 Buy
BD758571 100mg $68 Buy
A146780 250mg $134 Buy

tert-butyl 4,5-dibromothiophen-2-ylcarbamate Chemical Properties, Uses, Production

Synthesis

4,5-DIBROMOTHIOPHENE-2-CARBOXYLIC ACID

6324-10-3

tert-Butanol

75-65-0

tert-butyl 4,5-dibromothiophen-2-ylcarbamate

943321-93-5

GENERAL STEPS: To a solution of 4,5-dibromothiophene-2-carboxylic acid (9.8 mmol, 2.8 g) in tert-butanol (20 mL) were sequentially added diphenylphosphoryl azide (DPPA, 12.5 mmol, 2.7 mL) and triethylamine (29 mmol, 4.2 mL). The reaction mixture was heated to 85 °C and stirred for 12 h under nitrogen protection. Upon completion of the reaction, it was cooled to room temperature and subsequently concentrated under reduced pressure to remove the solvent. Purification of the crude product by fast column chromatography (silica gel as stationary phase, hexane/ethyl acetate=10:1 as eluent) afforded tert-butyl (4,5-dibromothiophen-2-yl)carbamate (2.6 g, 74% yield) as a white solid. m/z LC-MS (electrospray ionization): 357 [M+H]+.

References

[1] Patent: WO2007/76423, 2007, A2. Location in patent: Page/Page column 92
[2] Bioorganic and Medicinal Chemistry Letters, 2009, vol. 19, # 8, p. 2244 - 2248
[3] Bioorganic and Medicinal Chemistry Letters, 2006, vol. 16, # 21, p. 5567 - 5571

6324-10-3
75-65-0
943321-93-5
Synthesis of tert-butyl 4,5-dibromothiophen-2-ylcarbamate from 4,5-Dibromothiophene-2-carboxylic acid and tert-Butanol

tert-butyl 4,5-dibromothiophen-2-ylcarbamate Preparation Products And Raw materials

Raw materials

Preparation Products

tert-butyl 4,5-dibromothiophen-2-ylcarbamate Suppliers

Global Suppliers ( 9)
Supplier Tel Email Country ProdList Advantage
Suzhou Rovathin Foreign Trade Co.,Ltd 0512-65816829 18662214788 info@rovathin.com.cn China 9959 58
Energy Chemical 021-58432009 400-005-6266 marketing@energy-chemical.com China 44871 58
Yantai Shengkailun Chemical Technology Co., Ltd. 13356901049 mark@sklnchem.cn China 9925 58
Jilin Chinese Academy of Sciences-yanshen Technology 18143011203 info@chemextension.com China 42052 58
tert-butyl 4,5-dibromothiophen-2-ylcarbamate 1,1-dimethylethyl (4,5-dibromo-2-thienyl)carbamate Carbamic acid, N-(4,5-dibromo-2-thienyl)-, 1,1-dimethylethyl ester 943321-93-5