300780
Ethyl 4-pyrazolecarboxylate
99%
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About This Item
Empirical Formula (Hill Notation):
C6H8N2O2
CAS Number:
Molecular Weight:
140.14
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352100
MDL number:
Assay:
99%
Form:
powder
Product Name
Ethyl 4-pyrazolecarboxylate, 99%
InChI
1S/C6H8N2O2/c1-2-10-6(9)5-3-7-8-4-5/h3-4H,2H2,1H3,(H,7,8)
SMILES string
CCOC(=O)c1cn[nH]c1
InChI key
KACZQOKEFKFNDB-UHFFFAOYSA-N
assay
99%
form
powder
bp
138-140 °C/3 mmHg (lit.)
mp
78-80 °C (lit.)
functional group
ester
Application
Ethyl 4-pyrazolecarboxylate was used in the preparation of 4-chloromethylpyrazole. It was also used as starting material in a copper-diamine-catalyzed N-arylation reaction.
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
Regulatory Information
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Jon C Antilla et al.
The Journal of organic chemistry, 69(17), 5578-5587 (2004-08-17)
This paper details the copper-catalyzed N-arylation of pi-excessive nitrogen heterocycles. The coupling of either aryl iodides or aryl bromides with common nitrogen heterocycles (pyrroles, pyrazoles, indazoles, imidazoles, and triazoles) was successfully performed in good yield with catalysts derived from diamine
J F Schindler et al.
Journal of protein chemistry, 15(8), 737-742 (1996-11-01)
Improved and efficient techniques have led to an explosive growth in the application of site-directed mutagenesis to the study of enzymes. However, the limited availability of only those 20 amino acids that are translated by the genetic code has prevented
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