ChemicalBook > CAS DataBase List > 4-BROMO-1-TRITYL-1H-PYRAZOLE

4-BROMO-1-TRITYL-1H-PYRAZOLE

Product Name: 4-BROMO-1-TRITYL-1H-PYRAZOLE
CAS No.: 95162-14-4
Chemical Name: 4-BROMO-1-TRITYL-1H-PYRAZOLE
Synonyms: 4-Bromo-1-tritylpyrazole;4-BROMO-1-TRITYL-1H-PYRAZOLE;4-Bromo-1-trityl-1H-pyraziole;4-bromo-1-(triphenylmethyl)pyrazole;4-bromo-1-(triphenylmethyl)-1H-pyrazole;1H-Pyrazole,4-broMo-1-(triphenylMethyl)-
CBNumber: CB81559372
Molecular Formula: C22H17BrN2
Formula Weight: 389.29
MOL File: 95162-14-4.mol

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4-BROMO-1-TRITYL-1H-PYRAZOLE Property

Melting point:: 186-188℃ (hexane )
Boiling point:: 520.3±50.0 °C(Predicted)
Density: 1.27±0.1 g/cm3 (20 ºC 760 Torr)
storage temp.: Sealed in dry,Room Temperature
pka: -0.51±0.10(Predicted)
form: Powder
color: White

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Safety

HS Code: 2933199090

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

TRC

Product number: B700325
Product name: 4-Bromo-1-trityl-1H-pyrazole
Packaging: 5g
Price: $60
Updated: 2021/12/16

SynQuest Laboratories

Product number: 3H32-9-9Q
Product name: 4-Bromo-1-trityl-1H-pyrazole
Packaging: 1g
Price: $184
Updated: 2021/12/16

Matrix Scientific

Product number: 089625
Product name: 4-Bromo-1-trityl-1H-pyraziole
Packaging: 1g
Price: $198
Updated: 2021/12/16

AK Scientific

Product number: 6345AC
Product name: 4-Bromo-1-trityl-1H-pyrazole
Packaging: 10g
Price: $284
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: HCH0358728
Product name: 4-BROMO-1-TRITYL-1H-PYRAZOLE
Purity: 95.00%
Packaging: 5MG
Price: $500.23
Updated: 2021/12/16

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4-BROMO-1-TRITYL-1H-PYRAZOLE Chemical Properties,Usage,Production

Synthesis

2075-45-8

76-83-5

95162-14-4

To a 500 mL Schlenk flask pre-displaced with nitrogen was added 4-bromo-1H-pyrazole (10.0 g, 68.0 mmol) and anhydrous tetrahydrofuran (250 mL). After cooling the reaction system to 0°C, 60% sodium hydride dispersion (3.3 g, 81.6 mmol) was slowly added. After the hydrogen release stopped, triphenylchloromethane (20.9 g, 74.8 mmol) was slowly added and the reaction mixture was stirred at room temperature overnight. Upon completion of the reaction, the reaction was quenched with deionized water (5 mL) and subsequently dried under vacuum. The resulting residue was ground with dichloromethane (5 mL) and treated with methanol (200 mL) for 2 hours. The resulting suspension was filtered and dried at 50°C overnight to give 4-bromo-1-trityl-1H-pyrazole (26.0 g, 66.8 mmol, 98.2% yield) as a white solid. The product was characterized by 1H NMR (300 MHz, DMSO-d6) with chemical shifts of δ = 7.03-7.06 (m, 6H), 7.34-7.40 (m, 9H), 7.51 (s, 1H), 7.76 (s, 1H).

References

[1] Tetrahedron Letters, 2016, vol. 57, # 8, p. 895 - 898
[2] Patent: US2008/261975, 2008, A1. Location in patent: Page/Page column 12
[3] Journal of the American Chemical Society, 2011, vol. 133, # 31, p. 12285 - 12292
[4] Patent: US2009/82403, 2009, A1. Location in patent: Page/Page column 81
[5] Patent: US2007/105904, 2007, A1. Location in patent: Page/Page column 78

4-BROMO-1-TRITYL-1H-PYRAZOLE Preparation Products And Raw materials

Raw materials

Preparation Products

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4-BROMO-1-TRITYL-1H-PYRAZOLE Suppliers

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95162-14-4, 4-BROMO-1-TRITYL-1H-PYRAZOLERelated Search:

1-Tritylpyrazole 4-BROMO-1-TRITYL-1H-PYRAZOLE

4-BROMO-1-TRITYL-1H-PYRAZOLE

1H-Pyrazole,4-broMo-1-(triphenylMethyl)-

4-Bromo-1-tritylpyrazole

4-Bromo-1-trityl-1H-pyraziole

4-bromo-1-(triphenylmethyl)-1H-pyrazole

4-bromo-1-(triphenylmethyl)pyrazole

95162-14-4