About This Item
Fórmula empírica (Notação de Hill):
C3H3BrN2
Número CAS:
Peso molecular:
146.97
Número MDL:
Código UNSPSC:
12352100
ID de substância PubChem:
NACRES:
NA.22
Preço e disponibilidade não estão disponíveis no momento.
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Ensaio
99%
Formulário
solid
p.e.
250-260 °C (lit.)
pf
93-96 °C (lit.)
grupo funcional
bromo
cadeia de caracteres SMILES
Brc1cn[nH]c1
InChI
1S/C3H3BrN2/c4-3-1-5-6-2-3/h1-2H,(H,5,6)
chave InChI
WVGCPEDBFHEHEZ-UHFFFAOYSA-N
Categorias relacionadas
Descrição geral
4-Bromopyrazole is a heteroaryl halide and its cyanation in the presence of palladium catalysts has been reported.[1]
4-Bromopyrazole is a pyrazole derivative. It is reported to react with titanium tetrachloride to afford binary adducts.[2] Mutagenicity of 4-bromopyrazole has been tested using the L-arabinose forward mutation assay of Salmonella typhimurium.[3] It is reported to inhibit the oxidative phosphorylation, the ATP-32P exchange reaction, and energy dependent and independent calcium uptake.[4]
Aplicação
4-Bromopyrazole may be used in the preparation of 4-bromo-1-(2-chloroethyl)-1H-pyrazole.[5] It may be used as starting material in the synthesis of 1,4′-bipyrazoles.[6]
4-Bromopyrazole may be used in the preparation of solid hexacoordinate complexes by reaction with dimethyl- and divinyl-tindichloride.[7]
Palavra indicadora
Warning
Frases de perigo
Declarações de precaução
Classificações de perigo
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
Órgãos-alvo
Respiratory system
Código de classe de armazenamento
11 - Combustible Solids
Classe de risco de água (WGK)
WGK 3
Ponto de fulgor (°F)
Not applicable
Ponto de fulgor (°C)
Not applicable
Equipamento de proteção individual
dust mask type N95 (US), Eyeshields, Gloves
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Todd D Senecal et al.
Angewandte Chemie (International ed. in English), 52(38), 10035-10039 (2013-08-13)
Playing it safe: The nontoxic cyanide source K4 [Fe(CN)6]·3H2O can be used for the cyanation of (hetero)aryl halides. The application of palladacycle catalysts prevents poisoning during catalyst formation, thereby allowing for low catalyst loadings, fast reaction times, and wide heterocyclic
Ilia A. Guzei et al.
Inorganic chemistry, 36(20), 4415-4420 (2001-10-24)
Treatment of titanium tetrachloride with 3,5-di-tert-butylpyrazole affords the complexes [3,5-(C(CH(3))(3))(2)C(3)H(3)N(2)](2)[TiCl(6)] and (3,5-(C(CH(3))(3))(2)C(3)HN(2))(2)TiCl(2) in 37 and 42% yields, respectively. An analogous reaction with 3,5-dimethylpyrazole, 3-methylpyrazole, 4-bromopyrazole, and 4-iodopyrazole leads to the formation of corresponding TiCl(4)L(2) binary adducts in 30-86% yields. Crystal
Kamal Nayan Sharma et al.
Dalton transactions (Cambridge, England : 2003), 42(11), 3908-3918 (2013-01-19)
The reactions of 4-bromo-1-(2-chloroethyl)-1H-pyrazole prepared from 4-bromopyrazole with the in situ generated PhSNa, PhSeNa, Na(2)S and Na(2)Se have resulted in thio/selenoether ligands L1-L4 respectively. The complexes [PdL1/L2Cl(2)](1-2) and [PdL3/L4Cl]BF(4) (3-4) of these ligands have been synthesized by reacting them with
Dichlorodialkyltin complexes with 4-bromopyrazole. The crystal structure of bis(4-bromopyrazole- N2)dichlorodimethyltin(IV).
Casellato U, et al.
Journal of Organometallic Chemistry, 486(1-2), 105-107 (1995)
Effects of pyrazole, 4-bromopyrazole and 4-methylpyrazole on mitochondrial function.
A I Cederbaum et al.
Biochemical pharmacology, 23(2), 203-213 (1974-01-15)
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