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Dayang Chem (Hangzhou) Co.,Ltd.

As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch

1-Methyl-4-cyano-5-amino-1,2-pyrazole Manufacturer/High quality/Best price/In stock

Cas:5334-41-8

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Chemwill Asia Co., Ltd.

Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

5-Amino-4-cyano-N-methylpyrazole

Cas:5334-41-8

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Jinan Finer Chemical Co., Ltd

1-Methyl-4-cyano-5-amino-1,2-pyrazole

Cas:5334-41-8

Min.Order:1 Gram

FOB Price: $22.0

Type:Lab/Research institutions

inquiry

Zhuozhou Wenxi import and Export Co., Ltd

WITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et

Pharmaceutical Grade CAS 5334-41-8 with competitive price

Cas:5334-41-8

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

Shanghai Upbio Tech Co.,Ltd

1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized

1-Methyl-4-cyano-5-amino-1,2-pyrazole 5334-41-8

Cas:5334-41-8

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

1-Methyl-4-cyano-5-amino-1,2-pyrazole CAS:5334-41-8 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 qual

1-Methyl-4-cyano-5-amino-1,2-pyrazole CAS:5334-41-8

Cas:5334-41-8

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shandong Hanjiang Chemical Co., Ltd.

Hello, 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

1-Methyl-4-cyano-5-amino-1,2-pyrazole

Cas:5334-41-8

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Wentao Chemical Product Co., Ltd.

Henan 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

1-Methyl-4-cyano-5-amino-1,2-pyrazole

Cas:5334-41-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Lingrui Chemical Co.,Ltd.

Our advantages: 1, High quality with competitive price: 1) Standard:BP/USP/EP/Enterprise standard 2) All Purity≥99% 3) We are manufacturer and can provide high quality products with factory price. 2, Fast and safe delivery 1) Parcel can be

5-amino-1-methyl-1H-pyrazole-4-carbonitrile

Cas:5334-41-8

Min.Order:1 Gram

Negotiable

Type:Other

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM 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. J&H CHEM has some Manufacturing base in Jia

1-Methyl-4-cyano-5-amino-1,2-pyrazole

Cas:5334-41-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Massive Chemical Technology Co., Ltd.

Massive Chemical is certified with ISO9001 and ISO14001 manufacturer for this product. We will offer all documents as requirement for the materials which includes, Certificate of Analysis, Material Safety Data Sheet, and Method of Analysis and

1-Methyl-4-cyano-5-amino-1,2-pyrazole/High quality/Best price

Cas:5334-41-8

Min.Order:1 Gram

FOB Price: $1.0

Type:Lab/Research institutions

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development 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 chemi

1-Methyl-4-cyano-5-amino-1,2-pyrazole

Cas:5334-41-8

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Henan Tianfu Chemical Co., Ltd.

1-Methyl-4-cyano-5-amino-1,2-pyrazole TIMTEC-BB SBB007110;AKOS B020561;5-AMINO-1-METHYL-1H-PYRAZOLE-4-CARBONITRILE;5-AMINO-4-CYANO-1-METHYLPYRAZOLE;ART-CHEM-BB B020561;BUTTPARK 52\04-84;5-Amino-4-cyano-1-methyl-1,2-pyrazole;1-Methyl-4-cyano-5-ami

5334-41-8

Cas:5334-41-8

Min.Order:100 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Huarong Pharm Co., Ltd.

We Huarong Pharm can provide Customized Synthesis & Process R&D & APIs and intermediates Production & Quality Research & Registration Application, especially our GMP validation service which complies with SFDA, FDA, WHO and EU EMPA. O

1-Methyl-4-cyano-5-amino-1,2-pyrazole

Cas:5334-41-8

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shandong Mopai Biotechnology Co., LTD

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

1-Methyl-4-cyano-5-amino-1,2-pyrazole

Cas:5334-41-8

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Zhongqi chem Co.,Ltd.

Located in Hangzhou National Hi-Tech Industrial Development Zone, zhongqichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. Benefiting from the outstanding customer service and h

1-Methyl-4-cyano-5-amino-1,2-pyrazole

Cas:5334-41-8

Min.Order:0

Negotiable

Type:Other

inquiry

Hunan chemfish Pharmaceutical co.,Ltd

Appearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea

5-Amino-1-methyl-1H-pyrazole-4-carbonitrile

Cas:5334-41-8

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Bluecrystal chem-union

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

5-amino-1-methyl-1H-pyrazole-4-carbonitrile

Cas:5334-41-8

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Win-Win chemical Co.Ltd

Stock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai

5-amino-1-methyl-1H-pyrazole-4-carbonitrile cas no. 5334-41-8 97%

Cas:5334-41-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

GIHI CHEMICALS CO.,LIMITED

Lower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe

1-Methyl-4-cyano-5-amino-1,2-pyrazole

Cas:5334-41-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Kono Chem Co.,Ltd

high 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

1-Methyl-4-cyano-5-amino-1,2-pyrazole

Cas:5334-41-8

Min.Order:0

Negotiable

Type:Other

inquiry

Hangzhou Dingyan Chem Co., Ltd

R & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou

5-AMino-1-Methyl-1H-pyrazole-4-carbonitrile

Cas:5334-41-8

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Henan Allgreen Chemical Co.,Ltd

high quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea

1-Methyl-4-cyano-5-aMino-1,2-pyrazole

Cas:5334-41-8

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Antimex Chemical Limied

Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali

1-Methyl-4-cyano-5-amino-1,2-pyrazole

Cas:5334-41-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Fandachem Co.,Ltd

1-Methyl-4-cyano-5-amino-1,2-pyrazole cas 5334-41-8Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express

1-Methyl-4-cyano-5-amino-1,2-pyrazole cas 5334-41-8

Cas:5334-41-8

Min.Order:0

Negotiable

Type:Other

inquiry

Hangzhou Sartort Biopharma Co., Ltd

Best quality with low priceAppearance:Off-White Crystalline Solid Storage:ln stock Package:25kg/Barrel Application:Chemicals Transportation:Express/Sea/Air Port:Shanghai

1-Methyl-4-cyano-5-amino-1,2-pyrazole

Cas:5334-41-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Henan Kanbei Chemical Co.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

1-Methyl-4-cyano-5-amino-1,2-pyrazole

Cas:5334-41-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

SAGECHEM LIMITED

5334-41-8 Application:intermediate

1H-Pyrazole-4-carbonitrile, 5-amino-1-methyl-

Cas:5334-41-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hunan Russell Chemicals Technology Co.,Ltd

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:any port in China

5-Amino-1-methyl-1H-pyrazole-4-carbonitrile 5334-41-8

Cas:5334-41-8

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shanghai Scochem Technology Co., Ltd.

High quality suppliers Application:healing drugs

5-amino-1-methyl-1H-pyrazole-4-carbonitrile

Cas:5334-41-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

2-(methoxymethylene)malononitrile
672-81-1

2-(methoxymethylene)malononitrile

methylhydrazine
60-34-4

methylhydrazine

5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

Conditions
ConditionsYield
With sulfuric acid; sodium carbonate In ethanol Solvent; Reflux;81.6%
In ethanol Reflux;
methylhydrazine
60-34-4

methylhydrazine

Ethoxymethylenemalononitrile
123-06-8

Ethoxymethylenemalononitrile

5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

Conditions
ConditionsYield
In ethanol for 1h; Heating;78%
In ethanol for 1h; Heating;70%
In ethanol for 1h; Reflux;50%
acetonitrile
75-05-8

acetonitrile

Ethoxymethylenemalononitrile
123-06-8

Ethoxymethylenemalononitrile

5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

Conditions
ConditionsYield
In ethanol for 2h; Reflux;78%
methylhydrazine sulfuric acid
302-15-8

methylhydrazine sulfuric acid

Ethoxymethylenemalononitrile
123-06-8

Ethoxymethylenemalononitrile

5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

Conditions
ConditionsYield
With triethylamine In methanol Reflux;77%
With triethylamine In methanol Reflux;77%
With triethylamine In methanol Reflux;77%
N-methyl hydrazine sulfate

N-methyl hydrazine sulfate

Ethoxymethylenemalononitrile
123-06-8

Ethoxymethylenemalononitrile

5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

Conditions
ConditionsYield
With triethylamine In methanol Reflux;77%
3-Amino-4-cyanopyrazole
16617-46-2

3-Amino-4-cyanopyrazole

methyl iodide
74-88-4

methyl iodide

A

3-amino-1-methyl-1H-pyrazole-4-carbonitrile
21230-50-2

3-amino-1-methyl-1H-pyrazole-4-carbonitrile

B

5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 100 - 120℃;A 67.3%
B n/a
methylhydrazine
60-34-4

methylhydrazine

Ethoxymethylenemalononitrile
123-06-8

Ethoxymethylenemalononitrile

A

3-amino-1-methyl-1H-pyrazole-4-carbonitrile
21230-50-2

3-amino-1-methyl-1H-pyrazole-4-carbonitrile

B

5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

Conditions
ConditionsYield
In ethanol at 0 - 70℃; for 17.5h; Inert atmosphere; regioselective reaction;A 15 %Chromat.
B 49%
N-amino-N-methyl-N'-(1-methyl-4-cyanopyrazol-5-yl)-formamidine
111267-92-6

N-amino-N-methyl-N'-(1-methyl-4-cyanopyrazol-5-yl)-formamidine

A

5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

B

3-(5-amino-1-methylpyrazol-4yl)-1methyl-1,2,4-triazole
111267-93-7

3-(5-amino-1-methylpyrazol-4yl)-1methyl-1,2,4-triazole

Conditions
ConditionsYield
With trifluoroacetic acid In methanol; toluene for 72h; Heating;A 48%
B 43%
With trifluoroacetic acid In methanol; toluene Heating;A 48%
B 43%
orthoformic acid triethyl ester
122-51-0

orthoformic acid triethyl ester

methylhydrazine
60-34-4

methylhydrazine

malononitrile
109-77-3

malononitrile

5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

Conditions
ConditionsYield
In ethanol for 2h; Heating;17%
In ethanol Heating;
4-cyano-5-<(methoxymethylene)amino>-1-methylpyrazole
111267-91-5

4-cyano-5-<(methoxymethylene)amino>-1-methylpyrazole

5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 89 percent / acetonitrile / Ambient temperature
2: 48 percent / trifluoroacetic acid / toluene; methanol / 72 h / Heating
View Scheme
cis,trans-2,5-dimethoxytetrahydrofuran
696-59-3

cis,trans-2,5-dimethoxytetrahydrofuran

5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

4-cyano-1-methyl-5-(1H-pyrrol-1-yl)-1H-pyrazole
146885-48-5

4-cyano-1-methyl-5-(1H-pyrrol-1-yl)-1H-pyrazole

Conditions
ConditionsYield
With acetic acid for 0.5h; Heating;100%
In acetic acid for 0.5h; Heating;95%
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

5-amino-1-methyl-1H-pyrazole-4-carboxylic acid amide
18213-75-7

5-amino-1-methyl-1H-pyrazole-4-carboxylic acid amide

Conditions
ConditionsYield
Stage #1: 5-amino-4-cyano-1-methylpyrazole With sulfuric acid at 20℃; for 1h;
Stage #2: With ammonia; water pH=8; Product distribution / selectivity; Cooling with ice;
91%
With sodium hydroxide; water; dihydrogen peroxide In methanol at 20℃; Product distribution / selectivity;87%
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

N,N-dimethyl acetamide
127-19-5

N,N-dimethyl acetamide

5-<1-(dimethylamino)ethylideneamino>-1-methylpyrazole-4-carbonitrile
144945-01-7

5-<1-(dimethylamino)ethylideneamino>-1-methylpyrazole-4-carbonitrile

Conditions
ConditionsYield
With trichlorophosphate In acetonitrile for 0.0833333h; Ambient temperature;90%
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

5-Amino-1-methylpyrazole
1192-21-8

5-Amino-1-methylpyrazole

Conditions
ConditionsYield
With phosphoric acid at 170 - 180℃; for 20h;90%
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

orthoformic acid triethyl ester
122-51-0

orthoformic acid triethyl ester

4-cyano-5-<(ethoxymethylene)amino>-1-methylpyrazole

4-cyano-5-<(ethoxymethylene)amino>-1-methylpyrazole

Conditions
ConditionsYield
for 8h; Heating;90%
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

trimethyl orthoformate
149-73-5

trimethyl orthoformate

4-cyano-5-<(methoxymethylene)amino>-1-methylpyrazole
111267-91-5

4-cyano-5-<(methoxymethylene)amino>-1-methylpyrazole

Conditions
ConditionsYield
With trifluoroacetic acid for 1h; Heating;86%
trifluoroacetic acid for 1h; Heating;86%
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

1-methyl-5-amino-4-(tetrazol-5-yl)pyrazole

1-methyl-5-amino-4-(tetrazol-5-yl)pyrazole

Conditions
ConditionsYield
Stage #1: 5-amino-4-cyano-1-methylpyrazole With sodium azide In toluene Reflux;
Stage #2: With hydrogenchloride In methanol; toluene at 20℃; Solvent;
86%
With manganese(II) bromide; sodium azide In 2-methoxy-ethanol at 65℃; for 18h; Reagent/catalyst; Solvent; Temperature;60%
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

orthoformic acid triethyl ester
122-51-0

orthoformic acid triethyl ester

N-(4-cyano-2-methyl-2H-pyrazol-3-yl)-formimidic acid ethyl ester
62564-58-3

N-(4-cyano-2-methyl-2H-pyrazol-3-yl)-formimidic acid ethyl ester

Conditions
ConditionsYield
for 6h; Reflux;84%
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

5-chloro-1-methyl-1H-pyrazole-4-carbonitrile
111493-52-8

5-chloro-1-methyl-1H-pyrazole-4-carbonitrile

Conditions
ConditionsYield
Stage #1: 5-amino-4-cyano-1-methylpyrazole With hydrogenchloride; sodium nitrite In water at 0 - 5℃;
Stage #2: With urea; copper(l) chloride In water at 0 - 20℃;
84%
Stage #1: 5-amino-4-cyano-1-methylpyrazole With hydrogenchloride In water at 20℃;
Stage #2: With sodium nitrite In water at 0 - 5℃;
Stage #3: With urea; copper(l) chloride In water at 0 - 20℃;
Stage #1: 5-amino-4-cyano-1-methylpyrazole With hydrogenchloride; sodium nitrite In water at 0 - 5℃;
Stage #2: With urea; copper(l) chloride In water at 0 - 20℃;
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

N,N-dimethylacetamide dimethyl acetal
18871-66-4

N,N-dimethylacetamide dimethyl acetal

5-<1-(dimethylamino)ethylideneamino>-1-methylpyrazole-4-carbonitrile
144945-01-7

5-<1-(dimethylamino)ethylideneamino>-1-methylpyrazole-4-carbonitrile

Conditions
ConditionsYield
In acetonitrile77%
carbon disulfide
75-15-0

carbon disulfide

5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

1-methylpyrazolo[3,4-d]pyrimidin-4,6(5H,7H)-dithione
30682-70-3

1-methylpyrazolo[3,4-d]pyrimidin-4,6(5H,7H)-dithione

Conditions
ConditionsYield
With pyridine for 10h; Heating;75.9%
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

5-amino-1-methylpyrazole-4-carboxaldehyde

5-amino-1-methylpyrazole-4-carboxaldehyde

Conditions
ConditionsYield
With hydrogen; T-1 Raney Nickel In acetic acid under 760 Torr; for 72h; Ambient temperature;73%
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

methyl isocyanate
624-83-9

methyl isocyanate

4-Amino-1,5-dimethyl-1,5-dihydro-pyrazolo[3,4-d]pyrimidin-6-one
135108-63-3

4-Amino-1,5-dimethyl-1,5-dihydro-pyrazolo[3,4-d]pyrimidin-6-one

Conditions
ConditionsYield
With sodium methylate In N,N-dimethyl-formamide at 60℃; for 12h;72%
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

5-bromo-1-methyl-1H-pyrazole-4-carbonitrile

5-bromo-1-methyl-1H-pyrazole-4-carbonitrile

Conditions
ConditionsYield
With hydrogen bromide; copper(I) bromide; sodium nitrite In water at 0 - 20℃;72%
With hydrogen bromide; copper(I) bromide; sodium nitrite In water at 0 - 20℃;72%
With hydrogen bromide; copper(I) bromide; sodium nitrite In water at 0 - 20℃;69%
Stage #1: 5-amino-4-cyano-1-methylpyrazole With hydrogen bromide In water at 0 - 5℃;
Stage #2: With copper(I) bromide; sodium nitrite In water at 0 - 20℃;
69%
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

7-Methyl-4-oxo-3,4-dihydro-7H-pyrazolo<3,4-d>-1,2,3-triazin-N2-oxid
89403-96-3

7-Methyl-4-oxo-3,4-dihydro-7H-pyrazolo<3,4-d>-1,2,3-triazin-N2-oxid

Conditions
ConditionsYield
With sulfuric acid; nitric acid at 0 - 5℃; for 2h;70%
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

6-(3,5-dimethylpyrazol-1-yl)-1,2,4-triazolo<4,3-b><1,2,4,5>tetrazine
220696-97-9

6-(3,5-dimethylpyrazol-1-yl)-1,2,4-triazolo<4,3-b><1,2,4,5>tetrazine

5-([1,2,4]triazolo[4,3-b][1,2,4,5]tetrazin-6-ylamino)-1-methyl-1H-pyrazole-4-carbonitrile
1527497-93-3

5-([1,2,4]triazolo[4,3-b][1,2,4,5]tetrazin-6-ylamino)-1-methyl-1H-pyrazole-4-carbonitrile

Conditions
ConditionsYield
With potassium carbonate In acetonitrile at 80℃; for 4h; Reflux; Inert atmosphere; chemoselective reaction;69%
ammonium thiocyanate

ammonium thiocyanate

5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

4-chloro-benzoyl chloride
122-01-0

4-chloro-benzoyl chloride

4-Cyano-1-methyl-5-(p-chlorobenzoylthioureido)-pyrazole

4-Cyano-1-methyl-5-(p-chlorobenzoylthioureido)-pyrazole

Conditions
ConditionsYield
In water; acetone65%
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

carbon dioxide
124-38-9

carbon dioxide

1-Methyl-1H-pyrazolo<3,4-d>pyrimidine-4,6(5H,7H)-dione
5401-15-0

1-Methyl-1H-pyrazolo<3,4-d>pyrimidine-4,6(5H,7H)-dione

Conditions
ConditionsYield
With 1,5-diazabicyclo[4.3.0]non-5-ene 2,2,2-trifluoroethanol at 90℃; for 72h;65%
With 1,5-diazabicyclo[4.3.0]non-5-ene 2,2,2-trifluoroethanol at 90℃; under 760.051 Torr; for 72h; Green chemistry;65%
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

ethyl trifluoroacetate,
383-63-1

ethyl trifluoroacetate,

1-methyl-6-trifluoromethyl-1H-pyrazolo[3,4-d]pyrimidin-4-ol

1-methyl-6-trifluoromethyl-1H-pyrazolo[3,4-d]pyrimidin-4-ol

Conditions
ConditionsYield
Stage #1: 5-amino-4-cyano-1-methylpyrazole With sodium hydride In ethanol at 10℃; for 0.5h;
Stage #2: ethyl trifluoroacetate, In ethanol at 80℃; for 8h;
64%
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

phenyl isothiocyanate
103-72-0

phenyl isothiocyanate

4-imino-1-methyl-5-phenyl-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-d]pyrimidine-6-thione
501919-89-7

4-imino-1-methyl-5-phenyl-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-d]pyrimidine-6-thione

Conditions
ConditionsYield
Stage #1: 5-amino-4-cyano-1-methylpyrazole; phenyl isothiocyanate With potassium hydroxide In N,N-dimethyl-formamide for 2.5h; Heating;
Stage #2: With acetic acid In water; N,N-dimethyl-formamide
55%
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

cyclopentanone
120-92-3

cyclopentanone

4-methyl-2,4,5-triazatricyclo[7.3.0.03,7]dodeca-1,3(7),5,8-tetraen-8-amine

4-methyl-2,4,5-triazatricyclo[7.3.0.03,7]dodeca-1,3(7),5,8-tetraen-8-amine

Conditions
ConditionsYield
With aluminum (III) chloride In tetrahydrofuran; 1,2-dichloro-ethane at 85℃; for 2h;52%
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

methylmagnesium bromide
75-16-1

methylmagnesium bromide

1-(5-amino-1-methyl-1H-pyrazol-4-yl)-ethanone

1-(5-amino-1-methyl-1H-pyrazol-4-yl)-ethanone

Conditions
ConditionsYield
With tetrahydrofuran at 0 - 70℃; for 2h;52%
5-amino-4-cyano-1-methylpyrazole
5334-41-8

5-amino-4-cyano-1-methylpyrazole

4,5-dichloro-1,2,3-dithiazolium chloride
75318-43-3

4,5-dichloro-1,2,3-dithiazolium chloride

(4-chloro-[1,2,3]dithiazol-5-ylidene)(1-methyl-4-cyanopyrazol-5-yl)amine

(4-chloro-[1,2,3]dithiazol-5-ylidene)(1-methyl-4-cyanopyrazol-5-yl)amine

Conditions
ConditionsYield
With pyridine In dichloromethane at 20℃; for 7h;50%

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