3-BROMO-PYRAZOLO[1,5-A]PYRIMIDINE Chemical Properties

Melting point:

158-159℃

Density 

1.89

storage temp. 

Sealed in dry,Room Temperature

form 

solid

pka

-1.25±0.40(Predicted)

Appearance

Light yellow to brown Solid

InChI

InChI=1S/C6H4BrN3/c7-5-4-9-10-3-1-2-8-6(5)10/h1-4H

InChIKey

MFJWRPLBWPDHGV-UHFFFAOYSA-N

SMILES

C12=C(Br)C=NN1C=CC=N2

Safety Information

Hazard Codes 

T

Risk Statements 

25-36/37/38

Safety Statements 

26

RIDADR 

2811

WGK Germany 

3

HazardClass 

IRRITANT

PackingGroup 

Ⅲ

HS Code 

2933998090

3-BROMO-PYRAZOLO[1,5-A]PYRIMIDINE Usage And Synthesis

Synthesis

General procedure for the synthesis of 3-bromopyrazolo[1,5-a]pyrimidines from pyrazolo[1,5-a]pyrimidines: pyrazolo[1,5-a]pyrimidines (1 g, 8.39 mmol) were dissolved in acetonitrile (5 mL), followed by addition of N-bromosuccinimide (NBS, 1.494 g, 8.39 mmol). The reaction mixture was stirred at room temperature for 8 hours. + (calculated value C6H5BrN3: 198.0); LC-MS retention time (Method A2): tR = 1.43 min.

References

[1] Patent: WO2017/59080, 2017, A1. Location in patent: Page/Page column 256; 257

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