Ethyl 4-pyrazolecarboxylate

Ethyl 4-pyrazolecarboxylate Structure
Ethyl 4-pyrazolecarboxylate structure
Common Name Ethyl 4-pyrazolecarboxylate
CAS Number 37622-90-5 Molecular Weight 140.14
Density 1.2±0.1 g/cm3 Boiling Point 307.8±0.0 °C at 760 mmHg
Molecular Formula C6H8N2O2 Melting Point 78-80 °C(lit.)
MSDS Chinese USA Flash Point 122.7±19.8 °C
Symbol GHS07
GHS07
Signal Word Warning

Copper-diamine-catalyzed N-arylation of pyrroles, pyrazoles, indazoles, imidazoles, and triazoles.

J. Org. Chem. 69 , 5578, (2004)

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 perf...

Conversion of cysteinyl residues to unnatural amino acid analogs. Examination in a model system.

J. Protein Chem. 15(8) , 737-42, (1996)

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 the...