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inquiryThe above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi
DayangChem exported this product to many countries and regions at best price in China. If you are looking for the product’s supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product specifica
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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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inquiryBest quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia
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inquiryA substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc
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inquiryfactory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B
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Shandong Mopai Biotechnology Co., LTD is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemicals. W
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We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp
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inquiryhigh purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou
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inquiryShanghai Lonwin Chemical company is a subsidiary of Lonwin Industry Group Limited, was established in 2011 and is headquartered in Shanghai, adjacent to China National Convention and Exhibition Center and Hongqiao transportation hub.Lonwinchem is
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inquiryAcmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea
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4-bromo-3-methyl-1-phenylsulphonylpyrazole
4-bromo-3-methyl-1H-pyrazole
Conditions | Yield |
---|---|
With potassium hydroxide In methanol for 1h; Heating; | 83% |
With potassium hydroxide In methanol for 1h; Heating; other 4-bromo-1-phenylsulphonylpyrazoles; | 83% |
3-Methylpyrazole
4-bromo-3-methyl-1H-pyrazole
Conditions | Yield |
---|---|
Stage #1: 3-Methylpyrazole With N-Bromosuccinimide In N,N-dimethyl-formamide at 60℃; Continuous flow reactor; Stage #2: With water; acetic acid In N,N-dimethyl-formamide | 49% |
4-bromo-3-methyl-1H-pyrazole
Conditions | Yield |
---|---|
With water; bromine |
4-bromo-3-methyl-1H-pyrazole
di-tert-butyl dicarbonate
tert-butyl 4-bromo-3-methyl-1H-pyrazole-1-carboxylate
Conditions | Yield |
---|---|
With sodium hydroxide In 1,4-dioxane at 20℃; | 100% |
With sodium carbonate In dichloromethane; water for 2.5h; | |
With sodium carbonate In dichloromethane at 20℃; for 16h; | |
With dmap; triethylamine In acetonitrile at 20℃; | 0.32 g |
3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione
4-bromo-3-methyl-1H-pyrazole
Conditions | Yield |
---|---|
With tetrabutylammonium tetrafluoroborate In acetonitrile at 45℃; for 10h; Inert atmosphere; Electrochemical reaction; Green chemistry; diastereoselective reaction; | 99% |
9-borabicyclo[3.3.1]nonane dimer
4-bromo-3-methyl-1H-pyrazole
Conditions | Yield |
---|---|
In toluene for 3h; Inert atmosphere; Schlenk technique; Reflux; | 96% |
4-oxanyl methanesulfonate
4-bromo-3-methyl-1H-pyrazole
Conditions | Yield |
---|---|
With caesium carbonate In N,N-dimethyl-formamide at 100℃; for 10h; | 88% |
triisopropylsilyl chloride
4-bromo-3-methyl-1H-pyrazole
Conditions | Yield |
---|---|
With triethylamine In dichloromethane for 72h; Reflux; | 86.1% |
4-bromo-3-methyl-1H-pyrazole
carbon dioxide
methyl iodide
methyl 4-bromo-3-methyl-1H-pyrazole-1-carboxylate
Conditions | Yield |
---|---|
Stage #1: 4-bromo-3-methyl-1H-pyrazole; carbon dioxide With cesium hydroxide; (hydroxido){N,N'-bis(2,6-diisopropylphenyl)imidazol-2-ylidene}copper(I) In tetrahydrofuran at 40℃; under 1125.11 Torr; for 0.204167h; Inert atmosphere; Stage #2: methyl iodide In tetrahydrofuran Inert atmosphere; regioselective reaction; | 85% |
4-bromo-3-methyl-1H-pyrazole
phenylboronic acid
3-Methyl-4-phenyl-1H-pyrazole
Conditions | Yield |
---|---|
With palladium diacetate; potassium carbonate; catacxium A In 1,4-dioxane; water at 100℃; for 12h; Inert atmosphere; | 84% |
4-bromo-3-methyl-1H-pyrazole
1,3,5-trimethyl-benzene
Conditions | Yield |
---|---|
With C24H42N3(1+)*ClO4(1-); lithium perchlorate; acetic acid In acetonitrile at 20℃; for 72h; Electrochemical reaction; Sealed tube; Irradiation; | 83% |
4-bromo-3-methyl-1H-pyrazole
benzenesulfonyl chloride
4-bromo-3-methyl-1-phenylsulphonylpyrazole
Conditions | Yield |
---|---|
With pyridine for 2h; Heating; | 82% |
4-bromo-3-methyl-1H-pyrazole
phenylboronic acid
4-bromo-3-methyl-1-phenyl-1H-pyrazole
Conditions | Yield |
---|---|
With pyridine; oxygen; copper diacetate In dichloromethane at 20℃; for 24h; | 82% |
4-bromo-3-methyl-1H-pyrazole
dimethylamino sulfonyl chloride
4-bromo-3-methyl-pyrazole-1-sulphonic acid dimethylamide
Conditions | Yield |
---|---|
With 1,4-diaza-bicyclo[2.2.2]octane In acetonitrile at 20℃; for 6h; | 81% |
With 1,4-diaza-bicyclo[2.2.2]octane In acetonitrile at 20℃; for 6h; | 81% |
Stage #1: 4-bromo-3-methyl-1H-pyrazole With sodium hydride In N,N-dimethyl-formamide; mineral oil at 0℃; for 0.5h; Stage #2: dimethylamino sulfonyl chloride In N,N-dimethyl-formamide; mineral oil at 0 - 20℃; | 54% |
Stage #1: 4-bromo-3-methyl-1H-pyrazole With potassium tert-butylate In tetrahydrofuran at 20℃; for 0.333333h; Stage #2: dimethylamino sulfonyl chloride In tetrahydrofuran | |
Stage #1: 4-bromo-3-methyl-1H-pyrazole With sodium hydride In N,N-dimethyl-formamide at 0 - 20℃; for 1.25h; Stage #2: dimethylamino sulfonyl chloride In N,N-dimethyl-formamide at 0 - 20℃; for 3.25h; |
4-bromo-3-methyl-1H-pyrazole
benzyl bromide
Conditions | Yield |
---|---|
Stage #1: 4-bromo-3-methyl-1H-pyrazole With sodium hydride In N,N-dimethyl-formamide; mineral oil at 20℃; for 0.5h; Inert atmosphere; Stage #2: benzyl bromide In N,N-dimethyl-formamide; mineral oil at 0 - 20℃; | 80% |
Stage #1: 4-bromo-3-methyl-1H-pyrazole With sodium hydride In tetrahydrofuran at 0℃; for 0.5h; Stage #2: benzyl bromide In tetrahydrofuran at 0 - 15℃; for 1h; | 60% |
Stage #1: 4-bromo-3-methyl-1H-pyrazole With sodium hydride In tetrahydrofuran at 0℃; for 0.5h; Stage #2: benzyl bromide In tetrahydrofuran at 0 - 15℃; for 1h; | 60% |
4-bromo-3-methyl-1H-pyrazole
4-methoxy-phenol
Conditions | Yield |
---|---|
With dipotassium peroxodisulfate In acetonitrile at 80℃; for 5h; Inert atmosphere; Schlenk technique; | 76% |
4-bromo-3-methyl-1H-pyrazole
[Ru(2,2′-bipyridine-6,6′-dicarboxylate)((CH3)2SO)2]
Conditions | Yield |
---|---|
In methanol for 0.333333h; Reflux; Inert atmosphere; | 75% |
3-bromomethyl-3-methyloxetane
4-bromo-3-methyl-1H-pyrazole
Conditions | Yield |
---|---|
With caesium carbonate In N,N-dimethyl-formamide at 100℃; for 1.5h; Microwave irradiation; | 74.9% |
4-bromo-3-methyl-1H-pyrazole
trityl chloride
4-bromo-3-methyl-1-trityl-1H-pyrazole
Conditions | Yield |
---|---|
With triethylamine In chloroform at 20℃; Inert atmosphere; | 73% |
4-bromo-3-methyl-1H-pyrazole
Conditions | Yield |
---|---|
With dipotassium peroxodisulfate In acetonitrile at 80℃; for 5h; Inert atmosphere; Schlenk technique; | 72% |
4-bromo-3-methyl-1H-pyrazole
2,2,2-trifluoroethyl trifluoromethanesulphonate
Conditions | Yield |
---|---|
With caesium carbonate In N,N-dimethyl-formamide at 100℃; for 0.5h; Microwave irradiation; | 68.4% |
4-bromo-3-methyl-1H-pyrazole
ethyl bromoacetate
Conditions | Yield |
---|---|
With sodium hydride; potassium iodide In N,N-dimethyl-formamide; mineral oil at 80℃; for 12h; | 68% |
4-bromo-3-methyl-1H-pyrazole
[Ru(2,2′-bipyridine-6,6′-dicarboxylate)((CH3)2SO)2]
Conditions | Yield |
---|---|
In methanol for 6h; Reflux; Inert atmosphere; | 68% |
1-methyl-2(1H)-quinoxalinone
4-bromo-3-methyl-1H-pyrazole
Conditions | Yield |
---|---|
With air In acetonitrile at 20℃; for 20h; Irradiation; | 60% |
2-iodo-propane
4-bromo-3-methyl-1H-pyrazole
4-bromo-1-isopropyl-3-methyl-1H-pyrazole
Conditions | Yield |
---|---|
With caesium carbonate In acetonitrile at 90℃; for 12h; | 56% |
With caesium carbonate In acetonitrile at 90℃; for 12h; | 56% |
4-bromo-3-methyl-1H-pyrazole
1-(tert-butoxycarbonyl)piperidin-4-yl methanesulfonate
A
tert-butyl 4-(4-bromo-5-methyl-1H-pyrazol-1-yl)piperidine-1-carboxylate
B
tert-butyl 4-(4-bromo-3-methyl-1H-pyrazol-1-yl)piperidine-1-carboxylate
Conditions | Yield |
---|---|
With sodium hydride In mineral oil at 70℃; | A 27% B 53% |
With sodium hydride In N,N-dimethyl acetamide; mineral oil at 70℃; | A 27% B 53% |
Stage #1: 4-bromo-3-methyl-1H-pyrazole With sodium hydride In N,N-dimethyl-formamide at 0℃; for 1h; Stage #2: 1-(tert-butoxycarbonyl)piperidin-4-yl methanesulfonate In N,N-dimethyl-formamide at 95℃; for 1h; | |
Stage #1: 4-bromo-3-methyl-1H-pyrazole With sodium hydride In N,N-dimethyl-formamide; mineral oil at 0℃; for 1h; Stage #2: 1-(tert-butoxycarbonyl)piperidin-4-yl methanesulfonate In N,N-dimethyl-formamide; mineral oil at 90℃; for 4h; |
4-bromo-3-methyl-1H-pyrazole
1-Chloro-4-fluorobenzene
Conditions | Yield |
---|---|
With tetrabutylammonium tetrafluoroborate; acetic acid; 2,3-dicyano-5,6-dichloro-p-benzoquinone In acetonitrile at 20℃; for 36h; Sealed tube; Inert atmosphere; Irradiation; Electrolysis; | 52% |
Conditions | Yield |
---|---|
Stage #1: 4-bromo-3-methyl-1H-pyrazole With sodium hydride In N,N-dimethyl-formamide at 20℃; for 0.5h; Stage #2: 2-bromo-5-methyl-1,3-thiazole In N,N-dimethyl-formamide at 20 - 90℃; | 50% |
4-bromo-3-methyl-1H-pyrazole
4-bromo-2-(n-propyl)pyridine
Conditions | Yield |
---|---|
With copper(l) iodide; caesium carbonate In N,N-dimethyl acetamide at 1140℃; for 6h; Sealed tube; | 49% |
4-bromo-3-methyl-1H-pyrazole
(2-trimethylethylsilylethoxy)methyl chloride
Conditions | Yield |
---|---|
Stage #1: 4-bromo-3-methyl-1H-pyrazole With sodium hydride In tetrahydrofuran at 0℃; for 0.5h; Stage #2: (2-trimethylethylsilylethoxy)methyl chloride In tetrahydrofuran at 25℃; for 4h; | 44.22% |
Conditions | Yield |
---|---|
Stage #1: 4-bromo-3-methyl-1H-pyrazole With sodium hydride In N,N-dimethyl-formamide at 20℃; for 0.5h; Stage #2: 2-bromo-1,3-thiazole In N,N-dimethyl-formamide at 20 - 90℃; | 42% |
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