433853
5-Chloro-3-methyl-1-phenyl-4-pyrazolecarboxaldehyde
99%
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About This Item
Empirical Formula (Hill Notation):
C11H9ClN2O
CAS Number:
Molecular Weight:
220.65
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
Recommended Products
assay
99%
form
solid
mp
145-148 °C (lit.)
functional group
aldehyde
chloro
SMILES string
Cc1nn(c(Cl)c1C=O)-c2ccccc2
InChI
1S/C11H9ClN2O/c1-8-10(7-15)11(12)14(13-8)9-5-3-2-4-6-9/h2-7H,1H3
InChI key
DKZPJLZXLKAMDO-UHFFFAOYSA-N
General description
5-Chloro-3-methyl-1-phenyl-4-pyrazolecarboxaldehyde (5-Chloro-3-methyl-1-phenyl-1H-pyrazole-4-carboxaldehyde) can be synthesized from 3-methyl-1-phenyl-1Hpyrazol-5(4H)-one under Vilsmeier-Haack reaction conditions.[1] Knoevenagel condensation of 5-chloro-3-methyl-1-phenyl-1H-pyrazole-4-carboxaldehyde with ethylcyanoacetate at 0°C has been reported to afford ethyl-2-cyano-3-(5-chloro-3-methyl-1-phenyl-1H-pyrazole-4-yl)propionate.[2] It participates in the synthesis of 2-((5-phenoxy-3-methyl-1-phenyl-1H-pyrazol- 4-yl)methylene)hydrazinecarbothiomide derivatives with a potential anticonvulsant property.[3]
Application
5-Chloro-3-methyl-1-phenyl-4-pyrazolecarboxaldehyde (5-Chloro-3-methyl-1-phenyl-1H-pyrazole-4-carboxaldehyde) may be employed as starting material for the following syntheses:
- 5-chloro-3-methyl-1-phenyl-1H-pyrazole-4-carboxaldehyde hydrazone[1]
- N1-((5-chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)methylene)thiosemicarbazone[1]
- pyrazole derivatives, which were pharmacologically evaluated for analgesic (tail flick) and anti-inflammatory (based on carrageenan-induced paw edema) activities[4]
- N′-[(5-chloro-3-methyl-1-phenyl-1H-pyrazol-4- yl)methylene] 2/4-substituted hydrazides[5]
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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New pyrazole derivatives of potential biological activity.
Farghaly A-R, et al.
ARKIVOC (Gainesville, FL, United States), 7, 228-241 (2012)
Convenient Synthesis and Characterization of Pyrazolones and Schiff Bases.
Girisha KS and Kalluraya B.
Synthetic Communications, 42(20), 3097-3102 (2012)
Design and Synthesis of Pyrazolyl Thiosemicarbazones as New Anticonvulsants.
Deng XQ and Song MX.
Bull. Korean Chem. Soc., 35(9), 2733-2733 (2014)
Pharmacological screening for anti-inflammatory, analgesic activity of pyrazolyl derivatives along with molecular docking studies.
Kaushik D, et al.
Medicinal Chemistry Research, 21(11), 3646-3655 (2012)
Darpan Kaushik et al.
European journal of medicinal chemistry, 45(9), 3943-3949 (2010-06-25)
A series of N'-[(5-chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)methylene] 2/4-substituted hydrazides were synthesized using appropriate synthetic route and characterized by elemental analysis and spectral data. The anticonvulsant activity of some of the synthesized compounds were evaluated against maximal electroshock induced seizure (MES) and subcutaneous pentylenetetrazol
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