DayangChem exported this product to many countries and regions at best price. If you are looking for the material's manufacturer or supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product spe
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Min.Order:1 Gram
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Min.Order:0 Metric Ton
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Min.Order:1 Metric Ton
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Type:Trading Company
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Min.Order:1 Gram
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3-Methyl-4-iodopyrazole cas 15802-75-2Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
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inquiry3-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% |
Conditions | Yield |
---|---|
Stage #1: 4-iodo-3-methyl-1H-pyrazole; C8H4I2N4 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; sodium carbonate In toluene at 100℃; for 24h; Inert atmosphere; Schlenk technique; | 72% |
4-iodo-3-methyl-1H-pyrazole
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; potassium tert-butylate; palladium diacetate In 1,4-dioxane at 110℃; for 24h; 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; potassium carbonate In 1,4-dioxane at 100℃; for 40h; Inert atmosphere; Schlenk technique; | 68% |
4-iodo-3-methyl-1H-pyrazole
2-carboxyphenylboronic acid
6,6’-dibromo-3,3’-bipyridine
Conditions | Yield |
---|---|
Stage #1: 4-iodo-3-methyl-1H-pyrazole; 6,6’-dibromo-3,3’-bipyridine With t-BuBrettPhos; palladium diacetate; sodium t-butanolate In toluene at 110℃; for 24h; Inert atmosphere; Schlenk technique; Stage #2: 2-carboxyphenylboronic acid With sodium 2'‐(dicyclohexylphosphaneyl)‐2,6‐diisopropyl‐[1,1'‐biphenyl]‐4‐sulfonate; palladium diacetate; potassium carbonate In water; toluene at 100℃; for 48h; Inert atmosphere; Schlenk technique; | 67% |
4-iodo-3-methyl-1H-pyrazole
4-methoxy-phenol
Conditions | Yield |
---|---|
With dipotassium peroxodisulfate In acetonitrile at 80℃; for 5h; Inert atmosphere; Schlenk technique; | 67% |
3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione
4-iodo-3-methyl-1H-pyrazole
Conditions | Yield |
---|---|
With tetrabutylammonium tetrafluoroborate In dimethyl sulfoxide; acetonitrile at 45℃; for 3h; Inert atmosphere; Electrochemical reaction; Green chemistry; | 50% |
Conditions | Yield |
---|---|
With caesium carbonate In N,N-dimethyl-formamide at 25 - 90℃; for 6h; | 42.89% |
3,4-dihydro-2H-pyran
4-iodo-3-methyl-1H-pyrazole
A
4-iodo-5-methyl-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazole
Conditions | Yield |
---|---|
Stage #1: 3,4-dihydro-2H-pyran; 4-iodo-3-methyl-1H-pyrazole With trifluoroacetic acid In tetrahydrofuran at 60℃; for 4h; Stage #2: With water; sodium carbonate In tetrahydrofuran; tert-butyl methyl ether |
4-iodo-3-methyl-1H-pyrazole
methanesulfonic acid cyclopent-3-enyl ester
A
1-(Cyclopent-3-en-1-yl)-4-iodo-5-methyl-1H-pyrazole
B
1-(Cyclopent-3-en-1-yl)-4-iodo-3-methyl-1H-pyrazole
Conditions | Yield |
---|---|
Stage #1: 4-iodo-3-methyl-1H-pyrazole With sodium hydride In N,N-dimethyl-formamide at 20℃; for 1h; Stage #2: methanesulfonic acid cyclopent-3-enyl ester In N,N-dimethyl-formamide at 60℃; |
4-iodo-3-methyl-1H-pyrazole
ethyl (1s,4s)-4-(p-tolylsulfonyloxy)cyclohexanecarboxylate
A
ethyl trans-4-(4-iodo-3-methyl-1H-pyrazol-1-yl)cyclohexanecarboxylate
B
ethyl trans-4-(4-iodo-5-methyl-1H-pyrazol-1-yl)cyclohexanecarboxylate
Conditions | Yield |
---|---|
With 18-crown-6 ether; potassium carbonate In N,N-dimethyl-formamide at 80℃; Product distribution / selectivity; |
4-iodo-3-methyl-1H-pyrazole
1-[(3-bromopropoxy)methyl]-benzene
A
1-[3-(benzyloxy)propyl]-4-iodo-3-methyl-1H-pyrazole
B
1-[3-(benzyloxy)propyl]-4-iodo-5-methyl-1H-pyrazole
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 16h; |
Conditions | Yield |
---|---|
With tert.-butylnitrite; oxygen; 2,3-dicyano-5,6-dichloro-p-benzoquinone In 1,2-dichloro-ethane at 20℃; for 12h; Overall yield = 62 %; |
4-iodo-3-methyl-1H-pyrazole
2-amino-4-chloropyrimidine
Conditions | Yield |
---|---|
Stage #1: 4-iodo-3-methyl-1H-pyrazole With sodium hydride In N,N-dimethyl-formamide at 0 - 20℃; for 0.25h; Inert atmosphere; Stage #2: 2-amino-4-chloropyrimidine In N,N-dimethyl-formamide at 20℃; for 1h; Inert atmosphere; |
4-iodo-3-methyl-1H-pyrazole
Conditions | Yield |
---|---|
With di-isopropyl azodicarboxylate; triphenylphosphine In tetrahydrofuran at 20℃; for 16h; | 50 mg |
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