Product name: Pyrazole CAS No.:288-13-1 Molecule Formula:C3H4N2 Molecule Weight:68.0773 Purity: 99.6% Package: 25kg/bag/carton Description:White or light yellow crystalline powder Manufacture Standards:Enterprise Standard
Dayangchem's R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. DayangChem can provide different quantities
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inquiryItems Standard Result Appearance Off-white powder Complies Assay 99%min 99
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inquiryProduct description: Product name Pyrazole CAS number 288-13-1 Assay ≥99% Appearance White crystal Capacity 200mt/year Application Pharmaceutical/dye intermediate Mo
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1.Product name:Pyrazole 2.CAS:288-13-1 3.MF:C3H4N2 4.MW:68.08 5.Appearance:white powder 6.Assay:99%MIN Name Pyrazole Synonyms 1,2-Diazole; 1H-Pyrazole
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Pyrazole Basic information Product Name: Pyrazole Synonyms: 1H-Pyrazol;1H-PYRAZOLE;1,2-DIAZOL;1,2-DIAZOLE;PYRAZOLE;PYRAZOL;Pyrazole(Rri124)~99%;Pyrrazole CAS: 288-1
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inquiryProduct name: Pyrazole CAS : 288-13-1 Appearance: White needle-like crystal Content: 99% Appearance: White needle-like crystal Storage:Store in cool and dry place, away from sun light. Package:25kg/drum Application:Pesticide Intermediate, Pharmaceuti
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Cas:288-13-1
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inquiryPyrazole CAS: 288-13-1 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic intermediates, st
Cas:288-13-1
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inquiryHello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai
Superiority We can customize and synthesize products that other suppliers may not be able to provide. Advantage cof, mof ligand manufacturer Product Detail
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inquiryHenan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod
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Hangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det
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Company Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments
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Cas:288-13-1
Min.Order:10 Gram
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Type:Lab/Research institutions
inquirySuperior quality, moderate price & quick delivery. Appearance:colourless crystals Storage:sealed and stored Package:25kg/Drum Application:The pyrazolo as medicine, pesticide intermediates, and also as the side chain of the of certain phot Trans
tert-butyl 1H-pyrazole-1-carboxylate
NH-pyrazole
Conditions | Yield |
---|---|
In methanol at 120℃; under 5171.62 Torr; for 0.333333h; Microwave irradiation; | 99% |
With water at 100℃; for 0.166667h; | 99% |
With sodium carbonate In 1,2-dimethoxyethane; water for 0.25h; Heating; | 60% |
NH-pyrazole
Conditions | Yield |
---|---|
With sodium hydroxide In water | 95.8% |
With potassium hydroxide In water | 91.4% |
Conditions | Yield |
---|---|
With sodium sulfite In water at 130℃; for 1h; Sealed tube; Microwave irradiation; Green chemistry; | 94% |
Conditions | Yield |
---|---|
In water; toluene | A 93.6% B n/a |
Conditions | Yield |
---|---|
Stage #1: glycerol With hydrazine hydrate; potassium iodide; sodium iodide under 3750.38 Torr; for 0.5h; Large scale; Stage #2: With sulfuric acid at 160℃; for 2h; Temperature; Pressure; Large scale; | 91.1% |
Conditions | Yield |
---|---|
With sodium sulfite In water at 130℃; for 5h; Sealed tube; Microwave irradiation; Green chemistry; | 91% |
Conditions | Yield |
---|---|
With hydrazine hydrate; acetic acid at 85℃; for 1.5h; | 90% |
A
NH-pyrazole
Conditions | Yield |
---|---|
With n-butyllithium In hexane; tert-butyl methyl ether at 20℃; for 0.05h; Catalytic behavior; Temperature; Inert atmosphere; | A n/a B 87% |
Conditions | Yield |
---|---|
With hydrazine hydrate at 90 - 95℃; for 7h; | A 74% B 75% |
With hydrazine hydrate at 90 - 95℃; for 7h; Product distribution; also 3,5-dinitropyridone investigated; | A 74% B 75% |
A
NH-pyrazole
Conditions | Yield |
---|---|
With n-butyllithium In tetrahydrofuran -78 deg C 15 min, -45 deg C 1 h and room t., 3.5 h; | A 75% B 22% |
malonaldehydebis(dimethylacetal)
1,1,3-trimethoxy-3-acethoxypropane
1,3-diacetoxy-1,3-dimethoxy-propane
NH-pyrazole
Conditions | Yield |
---|---|
With hydrogenchloride; hydrazine hydrochloride In water at 30℃; for 1h; | 69% |
N,N-dimethyl-1H-pyrazole-1-sulfonamide
NH-pyrazole
Conditions | Yield |
---|---|
With hydrogenchloride for 21h; Heating; | 62% |
Dimethyldisulphide
1,2-bis(1H-pyrazol-1-yl)ethane
A
NH-pyrazole
B
1-vinylpyrazole
Conditions | Yield |
---|---|
With n-butyllithium In tetrahydrofuran; hexane 1.) 0 deg C, 1 h; 2.) room temp., 14 h; Yields of byproduct given; | A 62% B n/a C n/a D n/a |
With n-butyllithium In tetrahydrofuran; hexane 1.) 0 deg C, 1 h; 2.) room temp., 14 h; Yields of byproduct given; | A n/a B n/a C 12% D n/a |
With n-butyllithium In tetrahydrofuran; hexane 1.) 0 deg C, 1 h; 2.) room temp., 14 h; Yields of byproduct given; | A n/a B n/a C n/a D 2% |
With n-butyllithium In tetrahydrofuran; hexane Product distribution; 1.) 0 deg C. 1 h; 2.) room temp., 14 h; varying amounts of reag.; |
(1-chloro-2-methylpropylidene)methane-1,1-dicarbonitrile
(2,6-dichlorophenyl)hydrazine monohydrochloride
NH-pyrazole
Conditions | Yield |
---|---|
With sodium hydrogencarbonate; triethylamine In tetrahydrofuran | 62% |
With sodium hydrogencarbonate; triethylamine In tetrahydrofuran | 62% |
Conditions | Yield |
---|---|
hydrogenchloride In water for 8h; Heating; | A 59% B 35% |
gem-dichlorocyclopropanol
NH-pyrazole
Conditions | Yield |
---|---|
With hydrazine; dibenzo-18-crown-6 In ethanol | 58% |
Conditions | Yield |
---|---|
With sodium hydride In 1,4-dioxane at 20℃; for 24h; | 100% |
Stage #1: NH-pyrazole With sodium hydride In N,N-dimethyl-formamide for 1h; Inert atmosphere; Stage #2: 3,6-dichlorpyridazine In N,N-dimethyl-formamide at 0 - 20℃; for 13h; Inert atmosphere; | 86% |
In ethanol for 2h; Heating; | 65% |
Conditions | Yield |
---|---|
With sodium hydride In tetrahydrofuran for 6h; Product distribution; Mechanism; Heating; other diazole sodium salts, var solvents, var. time, var. temp.; | 100% |
With sodium hydride In tetrahydrofuran for 6h; Heating; | 91% |
With sodium hydride 1.) THF, 65 deg C, 2.) THF, reflux, 6 h; Yield given. Multistep reaction; |
NH-pyrazole
3-fluoro-6-nitrotoluene
1-(3-methyl-4-nitrophenyl)-1H-pyrazole
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 100℃; | 100% |
With sodium carbonate In N,N-dimethyl-formamide at 100℃; |
Conditions | Yield |
---|---|
With bromine In dichloromethane at 0℃; | 100% |
With N-Bromosuccinimide In water at 20 - 25℃; | 100% |
With N-Bromosuccinimide In water at 20℃; | 100% |
NH-pyrazole
sodium pyrazolide
Conditions | Yield |
---|---|
With sodium hydride In tetrahydrofuran | 100% |
With sodium hydride In tetrahydrofuran for 0.5h; | |
With sodium hydride | |
With sodium hydroxide In diethylene glycol dimethyl ether; water; toluene at 40 - 80℃; Inert atmosphere; Large scale reaction; | |
With sodium hydroxide In ethanol; water at 20℃; for 3h; |
Conditions | Yield |
---|---|
With copper; caesium carbonate; iron(III)-acetylacetonate In N,N-dimethyl-formamide at 100℃; for 15h; | 100% |
With copper(II) acetate monohydrate; caesium carbonate In N,N-dimethyl-formamide at 110℃; for 24h; Inert atmosphere; | 99% |
With caesium carbonate In dimethyl sulfoxide at 120℃; Inert atmosphere; | 99% |
3,4-dihydro-2H-pyran
NH-pyrazole
1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazole
Conditions | Yield |
---|---|
With trifluoroacetic acid Heating; | 100% |
at 125℃; for 24h; Green chemistry; | 100% |
With trifluoroacetic acid at 100℃; for 12h; Inert atmosphere; | 100% |
NH-pyrazole
1-(4-bromophenyl)-1H-pyrazole
1-[4-(1H-pyrazol-1-yl)phenyl]-1H-pyrazole
Conditions | Yield |
---|---|
With caesium carbonate; copper(I) oxide; trans-N,N'-bis(pyridin-2-ylmethylene)cyclohexane-1,2-diamine In acetonitrile at 82℃; for 48h; Conversion of starting material; | 100% |
With caesium carbonate; copper(I) oxide In acetonitrile at 82℃; for 48h; | 91% |
Conditions | Yield |
---|---|
With sodium hydroxide; tetrabutylammomium bromide In water; methyl cyclohexane at 110℃; for 5.5h; Product distribution / selectivity; Heating / reflux; | 100% |
With potassium hydroxide In ethanol at 78℃; for 1.5h; | 64% |
Conditions | Yield |
---|---|
With copper(II) acetate monohydrate; caesium carbonate In N,N-dimethyl-formamide at 110℃; for 24h; Inert atmosphere; | 100% |
With Cu6[1,4-bis(imidazol-1-yl)butane]3I6; caesium carbonate In N,N-dimethyl-formamide at 100℃; for 24h; Inert atmosphere; | 97% |
With copper(II) acetate monohydrate; caesium carbonate In N,N-dimethyl-formamide at 110℃; for 24h; Inert atmosphere; | 96% |
Conditions | Yield |
---|---|
100% | |
100% |
NH-pyrazole
diethylboryl-pivalate
2,2-dimethylpropanoyloxydiethylborane pyrazole complex
Conditions | Yield |
---|---|
In chloroform Ar-atmosphere; dropwise addn. of pyrazole to equimolar amt. of B-compd.(0°C); solvent removal (vac.); | 100% |
Conditions | Yield |
---|---|
In benzene byproducts: CH4; under argon atm., reflux, 1 h; evapn. of solvent; | 100% |
NH-pyrazole
2-fluoro-4-methoxy-1-nitro-benzene
1-(5-methoxy-2-nitro-phenyl)-1H-pyrazole
Conditions | Yield |
---|---|
Stage #1: NH-pyrazole With sodium hydride In tetrahydrofuran at 0℃; for 0.216667h; Stage #2: 2-fluoro-4-methoxy-1-nitro-benzene In tetrahydrofuran at 20℃; for 0.35h; | 100% |
NH-pyrazole
5-sec-butyl-4-chloro-6-methyl-2-methylsulfonylpyrimidine
5-sec-butyl-4-chloro-6-methyl-2-(1H-pyrazol-1-yl)pyrimidine
Conditions | Yield |
---|---|
Stage #1: NH-pyrazole With sodium hydride In tetrahydrofuran at 0 - 20℃; for 0.5h; Stage #2: 5-sec-butyl-4-chloro-6-methyl-2-methylsulfonylpyrimidine In tetrahydrofuran at -70℃; for 0.166667h; | 100% |
Conditions | Yield |
---|---|
Stage #1: NH-pyrazole With sodium hydride In DMF (N,N-dimethyl-formamide) at 20℃; for 1h; Stage #2: 4-Fluorobenzyl bromide In DMF (N,N-dimethyl-formamide) for 1h; Stage #3: With water In DMF (N,N-dimethyl-formamide) at 0℃; | 100% |
Stage #1: NH-pyrazole With sodium hydride In dimethyl sulfoxide; mineral oil at 20℃; Stage #2: 4-Fluorobenzyl bromide In dimethyl sulfoxide; mineral oil at 50℃; | 84% |
NH-pyrazole
3-methanesulfonyloxymethyl-azetidine-1-carboxylic acid tert-butyl ester
3-pyrazol-1-ylmethyl-azetidine-1-carboxylic acid tert-butyl ester
Conditions | Yield |
---|---|
Stage #1: NH-pyrazole With sodium hydride In tetrahydrofuran; mineral oil at 0℃; for 0.5h; Stage #2: 3-methanesulfonyloxymethyl-azetidine-1-carboxylic acid tert-butyl ester In tetrahydrofuran; mineral oil at 0 - 20℃; for 16h; | 100% |
Stage #1: NH-pyrazole With sodium hydride In N,N-dimethyl-formamide; mineral oil at 0℃; for 1h; Stage #2: 3-methanesulfonyloxymethyl-azetidine-1-carboxylic acid tert-butyl ester In N,N-dimethyl-formamide; mineral oil at 20℃; for 16h; | 76% |
Conditions | Yield |
---|---|
With potassium phosphate In N,N-dimethyl-formamide at 190℃; for 1h; Microwave irradiation; | 100% |
NH-pyrazole
tert-butyl ((ethylthio)(phenyl)methyl)carbamate
tert-butyl (phenyl(1H-pyrazol-1-yl)methyl)carbamate
Conditions | Yield |
---|---|
With N-iodo-succinimide In dichloromethane at -78℃; for 0.0833333h; Friedel-Crafts Alkylation; Sealed tube; Inert atmosphere; chemoselective reaction; | 100% |
With tris(2,2-bipyridine)ruthenium(II) hexafluorophosphate; tert-butyl alcohol In acetonitrile at 20℃; for 24h; Irradiation; | 60% |
NH-pyrazole
1,1-dimethylethyl (2R,4S)-4-{[(1,1-dimethylethyl)(dimethyl)silyl]oxy}-2-{[(methylsulfonyl)oxy]methyl}-1-pyrrolidinecarboxylate
C19H35N3O3Si
Conditions | Yield |
---|---|
Stage #1: NH-pyrazole With sodium hydride In N,N-dimethyl-formamide; mineral oil for 0.166667h; Cooling with ice; Stage #2: 1,1-dimethylethyl (2R,4S)-4-{[(1,1-dimethylethyl)(dimethyl)silyl]oxy}-2-{[(methylsulfonyl)oxy]methyl}-1-pyrrolidinecarboxylate In N,N-dimethyl-formamide; mineral oil at 60℃; for 1.5h; | 100% |
Conditions | Yield |
---|---|
With copper(l) iodide; caesium carbonate In N,N-dimethyl-formamide at 180℃; for 0.5h; Inert atmosphere; Microwave irradiation; | 100% |
Conditions | Yield |
---|---|
With sodium hydroxide In tetrahydrofuran for 72h; | 100% |
NH-pyrazole
sodium hydride
phenylboronic acid
sodium phenyltris(pyrazolyl)borate
Conditions | Yield |
---|---|
at 200℃; for 0.25h; Microwave irradiation; Inert atmosphere; | 100% |
3,4-dihydro-2H-pyran
NH-pyrazole
1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazole
Conditions | Yield |
---|---|
With trifluoroacetic acid at 100℃; for 12h; | 100% |
NH-pyrazole
7-(bromomethyl)-2,2-dimethyl-4H-benzo[d][1,3]dioxin-4-one
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 50℃; for 2h; | 100% |
Conditions | Yield |
---|---|
With 1,8-diazabicyclo[5.4.0]undec-7-ene In acetonitrile at 20℃; | 100% |
With 1,8-diazabicyclo[5.4.0]undec-7-ene In acetonitrile at 25℃; for 12h; | 88% |
NH-pyrazole
methyl cyanoformate
pyrazole-1-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With C14H18N2 (14) | 99% |
With N,N,N',N'-tetramethyl-1,8-diaminonaphthalene for 2h; Ambient temperature; | 95% |
NH-pyrazole
dimethylamino sulfonyl chloride
N,N-dimethyl-1H-pyrazole-1-sulfonamide
Conditions | Yield |
---|---|
Stage #1: NH-pyrazole With sodium hydride In tetrahydrofuran at 20℃; for 1h; Stage #2: dimethylamino sulfonyl chloride In tetrahydrofuran for 1.5h; | 99% |
Stage #1: NH-pyrazole With sodium hydride In tetrahydrofuran; mineral oil at 0 - 20℃; for 0.5h; Inert atmosphere; Stage #2: dimethylamino sulfonyl chloride In tetrahydrofuran; mineral oil at 0 - 20℃; for 0.5h; Inert atmosphere; | 99% |
With sodium hydride In tetrahydrofuran; mineral oil for 1.33333h; Inert atmosphere; | 91% |
Conditions | Yield |
---|---|
With sodium hydroxide; hydroxylamine-O-sulfonic acid In water for 0.5h; Ambient temperature; | 99% |
With potassium hydroxide; hydroxylamine-O-sulfonic acid for 15h; Ambient temperature; | 42% |
With potassium hydroxide; aminosulfonic acid at 70℃; |
Conditions | Yield |
---|---|
With sodium hydrogencarbonate at 120℃; for 12h; | 99% |
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