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CAS No.: | 15802-75-2 |
---|---|
Name: | 3-Methyl-4-iodopyrazole |
Article Data: | 10 |
Molecular Structure: | |
Formula: | C4H5IN2 |
Molecular Weight: | 208.002 |
Synonyms: | Pyrazole,4-iodo-3-methyl- (8CI);4-Iodo-3-methyl-1H-pyrazole; |
Density: | 2.094 g/cm3 |
Melting Point: | 185-187 °C |
Boiling Point: | 292.112 °C at 760 mmHg |
Flash Point: | 130.465 °C |
Hazard Symbols: | Xi |
Risk Codes: | 22 |
PSA: | 28.68000 |
LogP: | 1.32270 |
3-Methylpyrazole
4-iodo-3-methyl-1H-pyrazole
Conditions | Yield |
---|---|
With sodium hydroxide; Rodapon N 50; iodine In water at 20℃; for 0.25h; | 90% |
With ammonium cerium(IV) nitrate; iodine In acetonitrile at 20℃; for 3h; | 90% |
With dihydrogen peroxide; iodine In water | 85.6% |
With sodium nitrate; sodium hydrogencarbonate; potassium iodide In chloroform; water at 30℃; Electrolysis; | 71% |
With water; iodine; sodium acetate; potassium iodide |
4-iodo-3,5-dimethyl-1H-pyrazole
A
4-iodo-3-methyl-1H-pyrazole
Conditions | Yield |
---|---|
With sodium hydroxide; potassium permanganate |
4-iodo-3,5-dimethyl-1H-pyrazole
A
4-iodo-3-methyl-1H-pyrazole
3-Methylpyrazole
A
4-iodo-3-methyl-1H-pyrazole
B
3-iodo-2-methyl-1H-pyrazole
Conditions | Yield |
---|---|
With iodine; iodic acid In tetrachloromethane; water; acetic acid at 50℃; for 1.5h; Title compound not separated from byproducts.; |
3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione
4-iodo-3-methyl-1H-pyrazole
Conditions | Yield |
---|---|
With tetrabutylammonium tetrafluoroborate In acetonitrile at 45℃; for 10h; Inert atmosphere; Electrochemical reaction; Green chemistry; diastereoselective reaction; | 97% |
4-iodo-3-methyl-1H-pyrazole
3-methyl-4-nitro-1H-pyrazole
Conditions | Yield |
---|---|
With nitric acid In tetrahydrofuran at 20℃; for 2h; | 92% |
With nitric acid In tetrahydrofuran; water at 20℃; for 3h; | 73% |
4-iodo-3-methyl-1H-pyrazole
4-carboxyphenylboronic acid
2-bromo-5-[4-(6-bromopyridin-3-yl)phenyl]pyridine
Conditions | Yield |
---|---|
Stage #1: 4-iodo-3-methyl-1H-pyrazole; 2-bromo-5-[4-(6-bromopyridin-3-yl)phenyl]pyridine With t-BuBrettPhos; palladium diacetate; sodium t-butanolate In toluene at 110℃; for 24h; Inert atmosphere; Schlenk technique; Stage #2: 4-carboxyphenylboronic acid With sodium 2'‐(dicyclohexylphosphaneyl)‐2,6‐diisopropyl‐[1,1'‐biphenyl]‐4‐sulfonate; palladium diacetate; potassium carbonate In water; toluene at 100℃; for 24h; Inert atmosphere; Schlenk technique; | 77% |
4-iodo-3-methyl-1H-pyrazole
acrylic acid methyl ester
methyl 3-(4-iodo-1H-pyrazol-1-yl)propanoate
Conditions | Yield |
---|---|
With 1,8-diazabicyclo[5.4.0]undec-7-ene In acetonitrile at 0 - 20℃; for 2h; | 77% |
4-iodo-3-methyl-1H-pyrazole
Conditions | Yield |
---|---|
Stage #1: 4-iodo-3-methyl-1H-pyrazole; 3,6-diiodo-1,2,4,5-tetrazine With t-BuBrettPhos; palladium diacetate; sodium t-butanolate In toluene at 110℃; for 18h; Inert atmosphere; Schlenk technique; Stage #2: benzene-1,3-dicarboxylic-5-boronic triacid With sodium 2'‐(dicyclohexylphosphaneyl)‐2,6‐diisopropyl‐[1,1'‐biphenyl]‐4‐sulfonate; palladium diacetate; caesium carbonate In water; toluene at 100℃; for 48h; Inert atmosphere; Schlenk technique; | 76% |
4-iodo-3-methyl-1H-pyrazole
4-carboxyphenylboronic acid
4,4'-bis[5-(2-bromopyridyl)]1,1'-biphenyl
Conditions | Yield |
---|---|
Stage #1: 4-iodo-3-methyl-1H-pyrazole; 4,4'-bis[5-(2-bromopyridyl)]1,1'-biphenyl With t-BuBrettPhos; palladium diacetate; sodium t-butanolate In toluene at 110℃; for 18h; Inert atmosphere; Schlenk technique; Stage #2: 4-carboxyphenylboronic acid With sodium 2'‐(dicyclohexylphosphaneyl)‐2,6‐diisopropyl‐[1,1'‐biphenyl]‐4‐sulfonate; palladium diacetate; sodium carbonate In water; toluene at 100℃; for 36h; Inert atmosphere; Schlenk technique; | 73% |
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Molecular Structure:
Molecular Formula: C4H5IN2
Molecular Weight: 208.0004
IUPAC Name: 4-Iodo-5-methyl-1H-pyrazole
Synonyms of 3-Methyl-4-iodopyrazole (CAS NO.15802-75-2): 4-Iodo-3-methyl-1H-pyrazole ; 4-Lodo-3-methyl pyrazole
CAS NO: 15802-75-2
Index of Refraction: 1.656
Molar Refractivity: 36.509 cm3
Molar Volume: 99.328 cm3
Surface Tension: 58.143 dyne/cm
Density: 2.094 g/cm3
Flash Point: 130.465 °C
Enthalpy of Vaporization: 51.029 kJ/mol
Boiling Point: 292.112 °C at 760 mmHg
Vapour Pressure: 0.003 mmHg at 25°C
Hazard Codes of 3-Methyl-4-iodopyrazole (CAS NO.15802-75-2): Xi