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Changzhou Anchor Biological Technology Co., Ltd.

R & D and manufacturing enterprises have their own stock in stockAppearance:Off-white crystals Storage:Shading, sealed, dry place. Package:According to the clients' requirement Application:pharmaceutical intermediates Transportation:by sea or by air

Changzhou Helios Biomedical Science and Technology Co.,LTD.

Changzhou Helios Biochemical Co., Ltd is a leading manufacturer and supplier for medical intermediates and pesticide intermediates . We specialize in custom synthesis of benzene ring, pyridine and pyrimidine derivatives to help customers to accelerat

Ethyl 4-pyrazolecarboxylate/Best supplier/High purity99%+/In stock/CAS No.37622-90-5

Cas:37622-90-5

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

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Dayang Chem (Hangzhou) Co.,Ltd.

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

Ethyl pyrazole-4-carboxylate Manufacturer/High quality/Best price/In stock

Cas:37622-90-5

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Simagchem Corporation

Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our

High quality Ethyl 4-Pyrazolecarboxylate supplier in China

Cas:37622-90-5

Min.Order:0 Metric Ton

Negotiable

Type:Manufacturers

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Jinan Finer Chemical Co., Ltd

Our Services 1. Certificate Of Analysis (COA) 2. Material Safety Data Sheet (MSDS) 3. Route of synthesis (ROS) 4. Method of Aanlysis (MOA)

Ethyl 4-pyrazolecarboxylate

Cas:37622-90-5

Min.Order:1 Gram

FOB Price: $8.0

Type:Lab/Research institutions

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Ality Chemical Corporation

The 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

Factory Supply Ethyl 4-Pyrazolecarboxylate

Cas:37622-90-5

Min.Order:1

Negotiable

Type:Other

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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

4-Acetylpyrazole

Cas:37622-90-5

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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Hebei Nengqian Chemical Import and Export Co., LTD

Our advantages: 1. All inquiries will be replied within 12 hours. 2. Dedication to quality, supply & service. 3. Strictly on selecting raw materials. 4. Reasonable & competitive price, fast lead time. 5. Sample is available for your eva

Ethyl pyrazole-4-carboxylate

Cas:37622-90-5

Min.Order:1 Kilogram

FOB Price: $9.0 / 99.0

Type:Trading Company

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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

Manufacturer supply CAS 37622-90-5 with best quality

Cas:37622-90-5

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Product name: 1H-pyrazole-4-carboxylic acid ethyl ester CAS :37622-90-5 Appearance: White solid Content: 99% Appearance:White powder Storage:Store in cool and dry place, away from sun light. Package:25kg/drum Application:Syntheses Material Intermedia

Ethyl 4-pyarazolecarboxylate

Cas:37622-90-5

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

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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

1H-Pyrazole-4-carboxylicacid, ethyl ester 37622-90-5

Cas:37622-90-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Hangzhou Ocean Chemical Co., Ltd.

★.Best quality according to requirement ★.Competitive price in China market ★.Mature Technical support ★.Professional logistic support ★.Shortest delivery time . Appearance:Refer to COA Storage:Store in dry, cool and ventilated place Package:Acc

Ethyl 4-pyrazolecarboxylate

Cas:37622-90-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Shanghai Minstar Chemical Co., Ltd

Product Name: Ethyl pyrazole-4-carboxylate CAS: 37622-90-5 MF: C6H8N2O2 MW: 140.14 EINECS: 609-452-9 Mol File: 37622-90-5.mol Ethyl pyrazole-4-carboxylate Structure Ethyl pyrazole-4-carboxylate Chemical Properties Melting point

Ethyl pyrazole-4-carboxylate

Cas:37622-90-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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Baoji Guokang Healthchem co.,ltd

Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At prese

organic synthesis, Ethyl pyrazole-4-carboxylate CAS:37622-90-5

Cas:37622-90-5

Min.Order:1 Kilogram

FOB Price: $81.4 / 86.2

Type:Trading Company

inquiry

Qingdao Beluga Import and Export Co., LTD

Ethyl pyrazole-4-carboxylate CAS:37622-90-5 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 orga

Ethyl pyrazole-4-carboxylate CAS:37622-90-5

Cas:37622-90-5

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

1H-Pyrazole-4-carboxylicacid, ethyl ester

Cas:37622-90-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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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

CAS NO.:37622-90-5

Cas:37622-90-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Wuhan Han Sheng New Material Technology Co.,Ltd

Our advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We have s

37622-90-5 Ethyl pyrazole-4-carboxylate

Cas:37622-90-5

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

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Hangzhou Keyingchem Co.,Ltd

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

ethyl 4-pyrazolecarboxylate

Cas:37622-90-5

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

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Afine Chemicals Limited

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

ETHYL PYRAZOLE-4-CARBOXYLATE

Cas:37622-90-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

SHANGHAI T&W PHARMACEUTICAL CO., LTD.

A 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

ethyl 1H-pyrazole-4-carboxylate

Cas:37622-90-5

Min.Order:4 Kilogram

Negotiable

Type:Lab/Research institutions

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

1H-Pyrazole-4-carboxylicacid, ethyl ester

Cas:37622-90-5

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

Ethyl pyrazole-4-carboxylate

Cas:37622-90-5

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

High quality Ethyl 4-Pyrazolecarboxylate

Cas:37622-90-5

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

SHANGHAI SYSTEAM BIOCHEM CO., LTD

We are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov

ethyl 4-pyrazolecarboxylate

Cas:37622-90-5

Min.Order:100 Gram

FOB Price: $100.0 / 2000.0

Type:Lab/Research institutions

inquiry

Henan Tianfu Chemical Co., Ltd.

Melting point 78-80 °C(lit.) Boiling point 138-140 °C3 mm Hg(lit.) Fp 138-140°C/3mm CAS DataBase Reference 37622-90-5(CAS DataBase Reference) NIST Chemistry Reference 4-(C2H5COO)-pyrazole(37622-90-5) Safety Information Ha

37622-90-5 1H-Pyrazole-4-carboxylicacid, ethyl ester

Cas:37622-90-5

Min.Order:1 Metric Ton

FOB Price: $5000.0

Type:Lab/Research institutions

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Zibo Dorne chemical technology co. LTD

Product Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,

Ethyl 1H-pyrazole-4-carboxylate 98+%

Cas:37622-90-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Xiamen Jenny Chemical Technology Co., Ltd.

GMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,

Ethyl4-pyrazolecarboxylate

Cas:37622-90-5

Min.Order:1 Milligram

Negotiable

Type:Trading Company

inquiry

EAST CHEMSOURCES LIMITED

factory?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

37622-90-5 Ethyl pyrazole-4-carboxylate

Cas:37622-90-5

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

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

Ethyl pyrazole-4-carboxylate

Cas:37622-90-5

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

3-amino-4-pyrazolecarboxylic acid ethyl ester
6994-25-8

3-amino-4-pyrazolecarboxylic acid ethyl ester

4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

Conditions
ConditionsYield
With hydrogenchloride; acetic acid; sodium nitrite In ethanol for 1h; Heating;99%
With hydrogenchloride; acetic acid; sodium nitrite In water at 0℃; for 0.5h;80 g
ethyl 1H-pyrazole-4-carboxylate hydrochloride

ethyl 1H-pyrazole-4-carboxylate hydrochloride

4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

Conditions
ConditionsYield
With sodium hydrogencarbonate In water at 20℃; for 16h;99%
1H-pyrazole-4-carboxylic acid
37718-11-9

1H-pyrazole-4-carboxylic acid

ethanol
64-17-5

ethanol

4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

Conditions
ConditionsYield
With sulfuric acid for 16h; Reflux;97%
With thionyl chloride at 0 - 20℃; for 3h;80%
With sulfuric acid
ethyl 2-formyl-3-oxopropanoate
80370-42-9

ethyl 2-formyl-3-oxopropanoate

4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

Conditions
ConditionsYield
With hydrazine dihydrochloride In ethanol at 0 - 20℃; for 32h;92%
With hydrazine In ethanol at 0 - 20℃; for 24h;86%
With hydrazine In ethanol at 0 - 20℃; for 17h;72.4%
With hydrazine In ethanol at 20℃; for 17h;72.4%
4-iodopyrazole
3469-69-0

4-iodopyrazole

ethanol
64-17-5

ethanol

carbon monoxide
201230-82-2

carbon monoxide

4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

Conditions
ConditionsYield
With triethylamine at 100℃; for 4h; Inert atmosphere;90%
ethyl 1-(hydroxymethyl)-1H-pyrazole-4-carboxylate
112393-66-5

ethyl 1-(hydroxymethyl)-1H-pyrazole-4-carboxylate

A

4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

B

bis(4-ethoxycarbonylpyrazol-1-yl)methane

bis(4-ethoxycarbonylpyrazol-1-yl)methane

Conditions
ConditionsYield
With potassium fluoride; 18-crown-6 ether; methyl fluorosulfonate In tetrahydrofuran Heating;
sodium-compound of 1H-pyrazole-4-carboxylic acid dioxo-isobutyric acid ethyl ester

sodium-compound of 1H-pyrazole-4-carboxylic acid dioxo-isobutyric acid ethyl ester

4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

Conditions
ConditionsYield
With hydrazine hydrate; acetic acid
ethyl 2-cyanoacetate
105-56-6

ethyl 2-cyanoacetate

4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: acetic anhydride / 5 h / 120 °C
2: hydrazine hydrate / ethanol / 8 h / 0 °C
3: sodium nitrite; acetic acid; hydrogenchloride / water / 0.5 h / 0 °C
View Scheme
ethyl 2-dichloroacetyl-3-(dimethylamino)acrylate

ethyl 2-dichloroacetyl-3-(dimethylamino)acrylate

4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: toluene / 2 h / -50 °C
2: antimony(III) fluoride / N,N-dimethyl-formamide / 1 h / 90 °C
3: acetic acid; hydrogenchloride / 0.5 h / 0 °C
View Scheme
ethyl 3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylate
141573-95-7

ethyl 3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylate

4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

Conditions
ConditionsYield
With hydrogenchloride; acetic acid at 0℃; for 0.5h; Reagent/catalyst;
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

methyl iodide
74-88-4

methyl iodide

ethyl 1-methylpyrazole-4-carboxylate
85290-80-8

ethyl 1-methylpyrazole-4-carboxylate

Conditions
ConditionsYield
With caesium carbonate In N,N-dimethyl-formamide at 20℃;100%
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 16h;85%
Stage #1: 4-ethoxycarbonylpyrazole With sodium hydride In tetrahydrofuran at 25℃; for 1h; Inert atmosphere;
Stage #2: methyl iodide In tetrahydrofuran at 60 - 65℃; for 6h;
83%
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

(2-bromo-5-methyl-1,3-thiazol-4-yl)methanol
1187836-86-7

(2-bromo-5-methyl-1,3-thiazol-4-yl)methanol

ethyl 1-[(2-bromo-5-methyl-1,3-thiazol-4-yl)methyl]-1H-pyrazole-4-carboxylate
1190235-93-8

ethyl 1-[(2-bromo-5-methyl-1,3-thiazol-4-yl)methyl]-1H-pyrazole-4-carboxylate

Conditions
ConditionsYield
With di-isopropyl azodicarboxylate; triphenylphosphine In tetrahydrofuran at 0℃; for 2h; Inert atmosphere;100%
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

C12H8ClF3S

C12H8ClF3S

ethyl 1-({5-[3-(trifluoromethyl)phenyl]thiophen-2-yl}methyl)-1H-pyrazole-4-carboxylate
1190235-28-9

ethyl 1-({5-[3-(trifluoromethyl)phenyl]thiophen-2-yl}methyl)-1H-pyrazole-4-carboxylate

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 70℃;100%
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

p-methoxybenzyl chloride
824-94-2

p-methoxybenzyl chloride

1-(4-methoxybenzyl)-1H-pyrazole-4-carboxylic acid ethyl ester

1-(4-methoxybenzyl)-1H-pyrazole-4-carboxylic acid ethyl ester

Conditions
ConditionsYield
With potassium carbonate In acetonitrile at 20℃; for 4h; Reflux; Inert atmosphere;100%
With potassium carbonate In acetonitrile for 4h; Reflux;100%
In acetonitrile at 20℃; for 4h; Reflux;99%
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

methylamine
74-89-5

methylamine

N-methyl-1H-pyrazole-4-carboxamide
1154383-52-4

N-methyl-1H-pyrazole-4-carboxamide

Conditions
ConditionsYield
In water at 50 - 55℃; for 4h; Inert atmosphere;100%
In water at 65℃; for 2h;
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

1-(allyloxy)-2-(chloromethyl)benzene
153034-33-4

1-(allyloxy)-2-(chloromethyl)benzene

ethyl-(2-(allyloxy)benzyl)-1H-pyrazole-4-carboxylate

ethyl-(2-(allyloxy)benzyl)-1H-pyrazole-4-carboxylate

Conditions
ConditionsYield
With potassium carbonate In acetonitrile for 6h; Reflux;100%
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

sodium chlorodifluoroacetate
1895-39-2

sodium chlorodifluoroacetate

ethyl 1-(difluoromethyl)-1H-pyrazole-4-carboxylate
129819-40-5

ethyl 1-(difluoromethyl)-1H-pyrazole-4-carboxylate

Conditions
ConditionsYield
With sodium hydrogencarbonate In N,N-dimethyl-formamide at 100℃;100%
With sodium hydrogencarbonate In N,N-dimethyl-formamide at 100℃; for 40h;
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

[3-[N-(tert-butoxycarbonyl)amino]phenyl]methyl bromide
118684-32-5

[3-[N-(tert-butoxycarbonyl)amino]phenyl]methyl bromide

ethyl 1-(3-((tert-butoxycarbonyl)amino)benzyl)-1H-pyrazole-4-carboxylate

ethyl 1-(3-((tert-butoxycarbonyl)amino)benzyl)-1H-pyrazole-4-carboxylate

Conditions
ConditionsYield
With potassium carbonate In acetone for 3h; Reflux;100%
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

(2-trimethylethylsilylethoxy)methyl chloride
76513-69-4

(2-trimethylethylsilylethoxy)methyl chloride

ethyl 1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazole-4-carboxylate
1125880-03-6

ethyl 1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazole-4-carboxylate

Conditions
ConditionsYield
Stage #1: 4-ethoxycarbonylpyrazole With sodium hydride In N,N-dimethyl-formamide; mineral oil at 0℃; for 0.25h;
Stage #2: (2-trimethylethylsilylethoxy)methyl chloride In N,N-dimethyl-formamide; mineral oil at 0 - 20℃; for 16h;
99.3%
Stage #1: 4-ethoxycarbonylpyrazole With sodium hydride In tetrahydrofuran at 0 - 20℃; for 3h; Inert atmosphere;
Stage #2: (2-trimethylethylsilylethoxy)methyl chloride In tetrahydrofuran at 0 - 20℃; for 3h; Inert atmosphere;
98%
With sodium hydride In tetrahydrofuran at 0 - 20℃;96%
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

3,5-dibromo-1H-pyrazole-4-carboxylic acid ethyl ester
1017802-86-6

3,5-dibromo-1H-pyrazole-4-carboxylic acid ethyl ester

Conditions
ConditionsYield
With bromine; sodium acetate In ethanol at 20℃; for 5h;99%
With bromine; sodium acetate In ethanol; water at 20℃; for 10h;92%
With bromine; sodium acetate In ethanol at 20℃;
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

dimethylamino sulfonyl chloride
13360-57-1

dimethylamino sulfonyl chloride

ethyl 1-(N,N-dimethylsulfamoyl)-1H-pyrazole-4-carboxylate

ethyl 1-(N,N-dimethylsulfamoyl)-1H-pyrazole-4-carboxylate

Conditions
ConditionsYield
With 1,4-diaza-bicyclo[2.2.2]octane In acetonitrile for 1h; Inert atmosphere;99%
Stage #1: 4-ethoxycarbonylpyrazole With sodium hydride In tetrahydrofuran; mineral oil at 0℃; for 0.333333h; Inert atmosphere;
Stage #2: dimethylamino sulfonyl chloride In tetrahydrofuran; mineral oil at 25℃; for 22h; Inert atmosphere;
91%
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

C13H8ClFN2O2

C13H8ClFN2O2

C19H15FN4O4

C19H15FN4O4

Conditions
ConditionsYield
With potassium phosphate; tris-(dibenzylideneacetone)dipalladium(0); tert-butyl XPhos In tert-butyl alcohol at 80℃; Inert atmosphere;99%
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

2-(tert-butyldimethylsilyloxy)ethyl bromide
86864-60-0

2-(tert-butyldimethylsilyloxy)ethyl bromide

ethyl 1-(2-((tert-butyldimethylsilyl)oxy)ethyl)-1H-pyrazole-4-carboxylate

ethyl 1-(2-((tert-butyldimethylsilyl)oxy)ethyl)-1H-pyrazole-4-carboxylate

Conditions
ConditionsYield
With caesium carbonate In acetonitrile at 20℃; for 16h; Cooling with ice; Inert atmosphere; regioselective reaction;99%
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

(1-bromoethyl)benzne
585-71-7, 38661-81-3

(1-bromoethyl)benzne

1-(1-phenylethyl)-1H-pyrazole-4-carboxylic acid ethyl ester

1-(1-phenylethyl)-1H-pyrazole-4-carboxylic acid ethyl ester

Conditions
ConditionsYield
Stage #1: 4-ethoxycarbonylpyrazole With sodium hydride In N,N-dimethyl-formamide at 0℃; for 0.5h;
Stage #2: (1-bromoethyl)benzne In N,N-dimethyl-formamide at 20℃; for 2h;
99%
2-chloro-6-nitro-4-quinazolone
80195-33-1

2-chloro-6-nitro-4-quinazolone

4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

1-(6-nitro-4-oxo-3,4-dihydro-quinazolin-2-yl)-1H-pyrazole-4-carboxylic acid ethyl ester
1238692-93-7

1-(6-nitro-4-oxo-3,4-dihydro-quinazolin-2-yl)-1H-pyrazole-4-carboxylic acid ethyl ester

Conditions
ConditionsYield
In xylenes at 20 - 130℃; for 19h;98%
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

2-chloro-1-{4-(3,5-di-tert-butyl-4-hydroxyphenylsulfanyl)-4-[3,5-di-tert-butyl-4-(3-pyrazol-1-ylpropoxy)phenylsulfanyl]-piperidin-1-yl}ethanone
1402049-39-1

2-chloro-1-{4-(3,5-di-tert-butyl-4-hydroxyphenylsulfanyl)-4-[3,5-di-tert-butyl-4-(3-pyrazol-1-ylpropoxy)phenylsulfanyl]-piperidin-1-yl}ethanone

1-(2-{4-(3,5-di-tert-butyl-4-hydroxyphenylsulfanyl)-4-[3,5-di-tert-butyl-4-(3-pyrazol-1-ylpropoxy)phenylsulfanyl]piperidin-1-yl}-2-oxoethyl)-1H-pyrazole-4-carboxylic acid ethyl ester
1402049-40-4

1-(2-{4-(3,5-di-tert-butyl-4-hydroxyphenylsulfanyl)-4-[3,5-di-tert-butyl-4-(3-pyrazol-1-ylpropoxy)phenylsulfanyl]piperidin-1-yl}-2-oxoethyl)-1H-pyrazole-4-carboxylic acid ethyl ester

Conditions
ConditionsYield
Stage #1: 4-ethoxycarbonylpyrazole; 2-chloro-1-{4-(3,5-di-tert-butyl-4-hydroxyphenylsulfanyl)-4-[3,5-di-tert-butyl-4-(3-pyrazol-1-ylpropoxy)phenylsulfanyl]-piperidin-1-yl}ethanone With sodium hydride In tetrahydrofuran; mineral oil at 20℃; for 1h;
Stage #2: With ammonium chloride In tetrahydrofuran; mineral oil
98%
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

5-iodo-2-neopentyloxy-benzonitrile

5-iodo-2-neopentyloxy-benzonitrile

ethyl 1-(3'-cyano-4'-neopentyloxyphenyl)-pyrazol-4-carboxylate
206884-97-1

ethyl 1-(3'-cyano-4'-neopentyloxyphenyl)-pyrazol-4-carboxylate

Conditions
ConditionsYield
With trans-N,N'-dimethyl-1,2-cyclohexyldiamine; copper(l) iodide; potassium carbonate In N,N-dimethyl-formamide at 110℃; for 24h; Inert atmosphere; regioselective reaction;98%
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

5-bromo-2-(isopropylthio)benzonitrile

5-bromo-2-(isopropylthio)benzonitrile

ethyl 1-(3-cyano-4-(isopropylthio)phenyl)-1H-pyrazole-4-carboxylate

ethyl 1-(3-cyano-4-(isopropylthio)phenyl)-1H-pyrazole-4-carboxylate

Conditions
ConditionsYield
With copper(l) iodide; potassium carbonate In N,N-dimethyl-formamide at 10℃; for 24h; Inert atmosphere;98%
4-chloromethyl-3,5-dimethylisoxazole
19788-37-5

4-chloromethyl-3,5-dimethylisoxazole

4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

ethyl 1-((3,5-dimethylisoxazol-4-yl)methyl)-1H-pyrazole-4-carboxylate
1119833-53-2

ethyl 1-((3,5-dimethylisoxazol-4-yl)methyl)-1H-pyrazole-4-carboxylate

Conditions
ConditionsYield
With caesium carbonate In N,N-dimethyl-formamide at 80℃; for 16h; Inert atmosphere;97%
With caesium carbonate In N,N-dimethyl-formamide80%
With caesium carbonate In N,N-dimethyl-formamide at 80℃; for 12h;80%
With caesium carbonate In N,N-dimethyl-formamide at 80℃; for 12h;80%
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

p-Methoxybenzyl bromide
2746-25-0

p-Methoxybenzyl bromide

1-(4-methoxybenzyl)-1H-pyrazole-4-carboxylic acid ethyl ester

1-(4-methoxybenzyl)-1H-pyrazole-4-carboxylic acid ethyl ester

Conditions
ConditionsYield
With potassium carbonate In acetone at 20 - 50℃; for 17h;97%
With potassium carbonate In acetone at 20 - 50℃; for 17h;97%
With potassium carbonate In acetone for 12h; Reflux;
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

1H-pyrazole-4-carbaldehyde
35344-95-7

1H-pyrazole-4-carbaldehyde

Conditions
ConditionsYield
With n-butyllithium; diisobutylaluminium hydride; tert-butyl alcohol In tetrahydrofuran; hexane at 0℃;97%
2-(2-bromoethyl)-2-methyl-1,3-dioxolane
37865-96-6

2-(2-bromoethyl)-2-methyl-1,3-dioxolane

4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

ethyl 1-(2-(2-methyl-1,3-dioxolan-2-yl)ethyl)-1H-pyrazole-4-carboxylate

ethyl 1-(2-(2-methyl-1,3-dioxolan-2-yl)ethyl)-1H-pyrazole-4-carboxylate

Conditions
ConditionsYield
With caesium carbonate In acetonitrile at 65℃; for 2h; Sealed tube;97%
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

(4-((5-cyclopropyl-3-(2,6-dichlorophenyl)isoxazol-4-yl)methoxy)bicyclo[2.2.2]octan-1-yl)methanol

(4-((5-cyclopropyl-3-(2,6-dichlorophenyl)isoxazol-4-yl)methoxy)bicyclo[2.2.2]octan-1-yl)methanol

ethyl 1-((4-((5-cyclopropyl-3-(2,6-dichlorophenyl)isoxazol-4-yl)methoxy)bicyclo[2.2.2]octan-1-yl)methyl)-1H-pyrazole-4-carboxylate

ethyl 1-((4-((5-cyclopropyl-3-(2,6-dichlorophenyl)isoxazol-4-yl)methoxy)bicyclo[2.2.2]octan-1-yl)methyl)-1H-pyrazole-4-carboxylate

Conditions
ConditionsYield
With cyanomethylenetributyl-phosphorane In toluene at 100℃; for 6h;97%
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

1H-pyrazole-4-carboxylic acid
37718-11-9

1H-pyrazole-4-carboxylic acid

Conditions
ConditionsYield
With sodium hydroxide In water for 2h; Reflux; Inert atmosphere;96%
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

xanthene
92-83-1

xanthene

ethyl 1-(9H-xanthen-9-yl)-1H-pyrazole-4-carboxylate

ethyl 1-(9H-xanthen-9-yl)-1H-pyrazole-4-carboxylate

Conditions
ConditionsYield
With dibenzoyl peroxide In 1,2-dichloro-ethane at 80℃; for 6h; Schlenk technique;96%
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione
58-08-2

3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione

triethyl 1,1',1''-(1,3,7-trimethyl-2,6-dioxohexahydro-4H-purine-4,5,8(7H)-triyl)tris(1H-pyrazole-4-carboxylate)

triethyl 1,1',1''-(1,3,7-trimethyl-2,6-dioxohexahydro-4H-purine-4,5,8(7H)-triyl)tris(1H-pyrazole-4-carboxylate)

Conditions
ConditionsYield
With tetrabutylammonium tetrafluoroborate In acetonitrile at 45℃; for 10h; Inert atmosphere; Electrochemical reaction; Green chemistry; diastereoselective reaction;96%
4-ethoxycarbonylpyrazole
37622-90-5

4-ethoxycarbonylpyrazole

2-benzyloxy-3-methylbutanoic acid
56972-71-5

2-benzyloxy-3-methylbutanoic acid

ethyl 1-(1-(benzyloxy)-2-methylpropyl)-1H-pyrazole-4-carboxylate

ethyl 1-(1-(benzyloxy)-2-methylpropyl)-1H-pyrazole-4-carboxylate

Conditions
ConditionsYield
With 2,4,6-trimethyl-pyridine; tert-butylammonium hexafluorophosphate(V) In dichloromethane for 3h; Molecular sieve; Electrochemical reaction;96%

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