CAS 16034-46-1 | 1-Methyl-1H-pyrazole-5-carboxylic Acid
Molecular Formula: C5H6N2O2
Molecular Weight: 126.11
Purity: 97% Min.
Package: 1 g / 5 g / 25 g / 100 g / 1 kg / 25 kg
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Product Introduction
Specification of CAS 16034-46-1 | 1-Methyl-1H-pyrazole-5-carboxylic acid
ITEMS | SPECIFICATION |
Melting point | 220-225 °C |
InChIKey | JREJQAWGQCMSIY-UHFFFAOYSA-N |
λmax | 259nm(MeOH)(lit.) |
density | 1.34 g/cm3 |
Boiling point | 306.9 °C |
pka | 3.03 |
CAS DataBase Reference | 16034-46-1(CAS DataBase Reference) |
Synthesis of CAS 16034-46-1 | 1-Methyl-1H-pyrazole-5-carboxylic acid
Conditions
Stage #1: 1-methyl-1H-pyrazole With n-butyllithium In 2-methyltetrahydrofuran at -10℃;
Stage #2: carbon dioxide In 2-methyltetrahydrofuran
Stage #3: With hydrogenchloride In 2-methyltetrahydrofuran
Reference
Bagal, Sharan K.; Bungay, Peter J.; Denton, Stephen M.; Gibson, Karl R.; Glossop, Melanie S.; Hay, Tanya L.; Kemp, Mark I.; (…) Stevens, Edward B.; Thompson, Lisa R.
[ACS Medicinal Chemistry Letters, 2015, vol. 6, # 6, p. 650 - 654]
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