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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

4-(4-Chlorophenyl)-3-methyl-4-oxobutanoic acid

Cas:52240-25-2

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

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 4-(4-chlorophenyl)-3-methyl-4-oxo-butanoic acid

Cas:52240-25-2

Min.Order:1

Negotiable

Type:Other

inquiry

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

4-CHLORO-BETA-METHYL-Y-OXO-BENZENEBUTANOIC ACID

Cas:52240-25-2

Min.Order:1 Kilogram

FOB Price: $9.0 / 99.0

Type:Trading Company

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

Factory direct supply CAS 52240-25-2 with best quality

Cas:52240-25-2

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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

Benzenebutanoic acid, 4-chloro-β-methyl-γ-oxo-

Cas:52240-25-2

Min.Order:0

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

Benzenebutanoic acid, 4-chloro-β-methyl-γ-oxo-

Cas:52240-25-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Suzhou Health Chemicals Co., Ltd.

High quality,stable supply chain.Appearance:white/off-white or light yellow Storage:Store in cool and dry place, keep away from strong light and heat. Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Application:This product can be use

4-(4-Chlorophenyl)-3-methyl-4-oxobutanoic acid

Cas:52240-25-2

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

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

Cas:52240-25-2

Min.Order:0

Negotiable

Type:Other

inquiry

GIHI CHEMICALS CO.,LIMITED

high purity,in stock Package:25kg/drum,or as per customers'demand Application:API,Pharmaceutical intermediates Transportation:air,sea,courier

4-Chloro-beta-methyl-y-oxo-benzenebutanoic acid

Cas:52240-25-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Henan Allgreen Chemical Co.,Ltd

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

2-Fluoro-5-methylphenyl isocyanate

Cas:52240-25-2

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Chemsigma International Co.,Ltd.

bulk productiongoods in stockswe have the best competitive price in the marketmeantime,we are committed to service to our every customer Chemsigma International Co.,Ltd. is a chemical manufacturer, specialize in custom synthesis and organic chemical

4-CHLORO-BETA-METHYL-Y-OXO-BENZENEBUTANOIC ACID

Cas:52240-25-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

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

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid(SALTDATA: FREE)

Cas:52240-25-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Henan Tianfu Chemical Co., Ltd.

Benzenebutanoic acid, 4-chloro-β-methyl-γ-oxo- Application:Organic Chemicals

52240-25-2

Cas:52240-25-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Fandachem Co.,Ltd

4-(4-Chlorophenyl)-3-methyl-4-oxobutanoic acid cas 52240-25-2Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express

4-(4-Chlorophenyl)-3-methyl-4-oxobutanoic acid cas 52240-25-2

Cas:52240-25-2

Min.Order:0

Negotiable

Type:Other

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

4-CHLORO-BETA-METHYL-Y-OXO-BENZENEBUTANOIC ACID

Cas:52240-25-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Quanhe Biotechnology Co. LTD

1. Timely and efficient service to ensure communication with customers2. Produce products of different specifications and sizes according to your requirements.3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures sta

4-CHLORO-BETA-METHYL-Y-OXO-BENZENEBUTANOIC ACID

Cas:52240-25-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Chinqesen Biotechnology Co., Ltd.

Good Quality Package:1kg/bag Application:Medical or chemical Transportation:Air/Train/Sea Port:Shenzhen

52240-25-2

Cas:52240-25-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

home-produced Application:medicine

4-CHLORO-BETA-METHYL-Y-OXO-BENZENEBUTANOIC ACID

Cas:52240-25-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

ZHEJIANG JIUZHOU CHEM CO.,LTD

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

4-CHLORO-BETA-METHYL-Y-OXO-BENZENEBUTANOIC ACID

Cas:52240-25-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Bide Pharmatech Ltd

Our mission is to provide high-quality and innovative products to our customers. By offering a broad range of products, custom synthesis and personalized services, Bide can help scientists speeding up their research in the chemical and pharmaceutical

4-(4-Chlorophenyl)-3-methyl-4-oxobutanoic acid

Cas:52240-25-2

Min.Order:0

Negotiable

Type:Other

inquiry

Amadis Chemical Co., Ltd.

1.Professional synthesis laboratory and production base. 2.Strong synthesis team and service team. 3.Professional data management system. 4.We provide the professional test date and product information ,ex. HNMR ,CNMR,FNMR, HPLC/G

4-(4-Chlorophenyl)-3-methyl-4-oxobutanoic acid

Cas:52240-25-2

Min.Order:10 Milligram

Negotiable

Type:Lab/Research institutions

inquiry

Changzhou Extraordinary Pharmatech co.,LTD

Changzhou Extraordinary Pharmatech co., LTD. As a leading chemical manufacturer and supplier in China.DAS authentication is passed.We can provide the popular precursor chemicals, we have our own strong R & D team, have our own laboratories and fa

Intermediates of Pimobendan : 4-(4-chloro-phenyl)-3-methyl-4-oxobutanoic acid

Cas:52240-25-2

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Jilin haofei import and export trade Co.,Ltd

Price, service, company and transport advantage: 1.Best service, high quality and reasonable price. 2. It's customers' right to choose the package (EMS, DHL, FEDEX, UPS). ? 3. It's customers' right to choose the packing way for his products fro

Chemical Technology Co.,LTD

1. Production capacity: we have three production base with high-tech production equipment and instruments, equipped with professional production personnel, meet your requirements.2. Quality assurance: we have a first-class testing equipment and testi

4-CHLORO-BETA-METHYL-Y-OXO-BENZENEBUTANOIC ACID

Cas:52240-25-2

Min.Order:0

Negotiable

Type:Other

inquiry

Changzhou Run-chem Biological Co.,ltd

4-CHLORO-BETA-METHYL-Y-OXO-BENZENEBUTANOIC ACID 52240-25-2 97%+ Application:4-CHLORO-BETA-METHYL-Y-OXO-BENZENEBUTANOIC ACID 52240-25-2 intermediates

4-CHLORO-BETA-METHYL-Y-OXO-BENZENEBUTANOIC ACID 52240-25-2

Cas:52240-25-2

Min.Order:0 Metric Ton

Negotiable

Type:Trading Company

inquiry

Synthetic route

4-(4-chlorophenyl)-3-methyl-4-oxobutyronitrile
53012-96-7

4-(4-chlorophenyl)-3-methyl-4-oxobutyronitrile

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

Conditions
ConditionsYield
With hydrogenchloride; water at 100℃; for 5h; Inert atmosphere;72%
With hydrogenchloride; water at 100℃; for 5h; Inert atmosphere;72%
With hydrogenchloride; water Heating;54.6%
With hydrogenchloride; water
4'-chloropropiophenone
6285-05-8

4'-chloropropiophenone

lithium-bromoacetate

lithium-bromoacetate

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

Conditions
ConditionsYield
4-chlorobenzaldehyde
104-88-1

4-chlorobenzaldehyde

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: sodium cyanide / dimethylformamide / 2 h / 40 °C
2: 54.6 percent / conc. HCl, water / Heating
View Scheme
Multi-step reaction with 2 steps
1: sodium cyanide / N,N-dimethyl-formamide; methanol
2: hydrogenchloride; water
View Scheme
Multi-step reaction with 2 steps
1.1: N,N-dimethyl-formamide / 2 h / 35 - 38 °C / Inert atmosphere
1.2: 3.5 h / 40 °C / Inert atmosphere
2.1: hydrogenchloride; water / 5 h / 100 °C / Inert atmosphere
View Scheme
Multi-step reaction with 2 steps
1.1: sodium cyanide / N,N-dimethyl-formamide / 2 h / 35 - 38 °C / Inert atmosphere
1.2: 40 °C / Inert atmosphere
2.1: hydrogenchloride; water / 5 h / 100 °C / Inert atmosphere
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

3-methyl-4-oxo-4-(3'-nitro-4'-chloro-phenyl)-butyric acid
85633-96-1

3-methyl-4-oxo-4-(3'-nitro-4'-chloro-phenyl)-butyric acid

Conditions
ConditionsYield
With nitric acid at -15 - -10℃; for 0.5h;98%
With nitric acid at -15 - -10℃; Inert atmosphere;90%
With nitric acid at -15 - -10℃; Inert atmosphere;90%
With nitric acid In water
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

5-methyl-6-<2-(2-pyrrolyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

5-methyl-6-<2-(2-pyrrolyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
2: 98 percent / hydrazine hydrate / acetic acid / 2.5 h / 100 °C
3: 86 percent / butan-1-ol / 20 h / Heating
4: 88.6 percent / H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
5: 32 percent / sodium bisulfite / dimethylformamide / 2 h / Heating
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

5-methyl-6<2-(2-thiazolyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

5-methyl-6<2-(2-thiazolyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
2: 98 percent / hydrazine hydrate / acetic acid / 2.5 h / 100 °C
3: 86 percent / butan-1-ol / 20 h / Heating
4: 88.6 percent / H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
5: 29 percent / sodium bisulfite / dimethylformamide / 2 h / Heating
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

5-methyl-6-<2-(1,2,4-triazol-5-yl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

5-methyl-6-<2-(1,2,4-triazol-5-yl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
2: 98 percent / hydrazine hydrate / acetic acid / 2.5 h / 100 °C
3: 86 percent / butan-1-ol / 20 h / Heating
4: 88.6 percent / H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
5: 25 percent / sodium bisulfite / dimethylformamide / 2 h / Heating
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

5-methyl-6-<2-(5-<1-methyl>pyrazolyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

5-methyl-6-<2-(5-<1-methyl>pyrazolyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
2: 98 percent / hydrazine hydrate / acetic acid / 2.5 h / 100 °C
3: 86 percent / butan-1-ol / 20 h / Heating
4: 88.6 percent / H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
5: 68 percent / sodium bisulfite / dimethylformamide / 2 h / Heating
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

5-methyl-6-<2-(3-<1-methyl>pyrazolyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

5-methyl-6-<2-(3-<1-methyl>pyrazolyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
2: 98 percent / hydrazine hydrate / acetic acid / 2.5 h / 100 °C
3: 86 percent / butan-1-ol / 20 h / Heating
4: 88.6 percent / H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
5: 54 percent / sodium bisulfite / dimethylformamide / 2 h / Heating
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

5-methyl-6-<2-(2-<5-chlorothienyl>)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

5-methyl-6-<2-(2-<5-chlorothienyl>)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
2: 98 percent / hydrazine hydrate / acetic acid / 2.5 h / 100 °C
3: 86 percent / butan-1-ol / 20 h / Heating
4: 88.6 percent / H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
5: 35 percent / sodium bisulfite / dimethylformamide / 2 h / Heating
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

6-(3,4-diaminophenyl)-5-methyl-2,3,4,5-tetrahydropyridazin-3-one
136609-85-3, 136609-86-4, 74150-02-0

6-(3,4-diaminophenyl)-5-methyl-2,3,4,5-tetrahydropyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
2: 98 percent / hydrazine hydrate / acetic acid / 2.5 h / 100 °C
3: 86 percent / butan-1-ol / 20 h / Heating
4: 88.6 percent / H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
View Scheme
Multi-step reaction with 4 steps
1: nitric acid / water
2: hydrazine hydrate; acetic acid / water
3: butan-1-ol; water
4: hydrogenchloride; hydrogen / palladium on carbon / water; methanol
View Scheme
Multi-step reaction with 4 steps
1: nitric acid / -15 - -10 °C / Inert atmosphere
2: hydrazine hydrate; acetic acid / 30 - 100 °C / Inert atmosphere
3: L-proline; sodium carbonate; sodium azide; sodium L-ascorbate; copper(ll) sulfate pentahydrate / dimethyl sulfoxide; water / 24 h / 70 °C / Inert atmosphere
4: sodium hydrogensulfide / water; methanol / 6 h / 65 °C / Inert atmosphere
View Scheme
Multi-step reaction with 4 steps
1: nitric acid / -15 - -10 °C / Inert atmosphere
2: acetic acid; hydrazine hydrate / 4.5 h / 30 - 100 °C / Inert atmosphere
3: sodium carbonate; sodium azide; sodium L-ascorbate; L-proline; copper(ll) sulfate pentahydrate / dimethyl sulfoxide; water / 24 h / 70 °C / Inert atmosphere
4: sodium hydrogensulfide / water; methanol / 6 h / 65 °C / Inert atmosphere
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

(+)-6-(3,4-diaminophenyl)-5-methyl-2,3,4,5-tetrahydro-pyridazin-3-one

(+)-6-(3,4-diaminophenyl)-5-methyl-2,3,4,5-tetrahydro-pyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
3: hydrazine hydrate / acetic acid / 2.5 h / 100 °C
4: butan-1-ol / 20 h / Heating
5: H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

(-)-6-(3,4-diaminophenyl)-5-methyl-2,3,4,5-tetrahydro-pyridazin-3-one

(-)-6-(3,4-diaminophenyl)-5-methyl-2,3,4,5-tetrahydro-pyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
3: hydrazine hydrate / acetic acid / 2.5 h / 100 °C
4: butan-1-ol / 20 h / Heating
5: H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

(+)-4-(4-chloro-3-nitrophenyl)-3-methyl-4-oxobutyric acid
151911-11-4

(+)-4-(4-chloro-3-nitrophenyl)-3-methyl-4-oxobutyric acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

(-)-4-(4-chloro-3-nitrophenyl)-3-methyl-4-oxobutyric acid
136609-87-5

(-)-4-(4-chloro-3-nitrophenyl)-3-methyl-4-oxobutyric acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

6-(4-chloro-3-nitrophenyl)-5-methyl-2,3,4,5-tetrahydropyridazin-3-one
117397-88-3, 136609-88-6, 151870-45-0

6-(4-chloro-3-nitrophenyl)-5-methyl-2,3,4,5-tetrahydropyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
2: 98 percent / hydrazine hydrate / acetic acid / 2.5 h / 100 °C
View Scheme
Multi-step reaction with 2 steps
1: nitric acid / water
2: hydrazine hydrate; acetic acid / water
View Scheme
Multi-step reaction with 2 steps
1: nitric acid / -15 - -10 °C / Inert atmosphere
2: hydrazine hydrate; acetic acid / 30 - 100 °C / Inert atmosphere
View Scheme
Multi-step reaction with 2 steps
1: nitric acid / -15 - -10 °C / Inert atmosphere
2: acetic acid; hydrazine hydrate / 4.5 h / 30 - 100 °C / Inert atmosphere
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

(+)-6-(4-chloro-3-nitrophenyl)-5-methyl-2,3,4,5-tetrahydropyridazin-3-one

(+)-6-(4-chloro-3-nitrophenyl)-5-methyl-2,3,4,5-tetrahydropyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
3: hydrazine hydrate / acetic acid / 2.5 h / 100 °C
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

(-)-6-(4-chloro-3-nitrophenyl)-5-methyl-2,3,4,5-tetrahydropyridazin-3-one

(-)-6-(4-chloro-3-nitrophenyl)-5-methyl-2,3,4,5-tetrahydropyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
3: hydrazine hydrate / acetic acid / 2.5 h / 100 °C
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

5-methyl-6-<2-(3-thienyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

5-methyl-6-<2-(3-thienyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
2: 98 percent / hydrazine hydrate / acetic acid / 2.5 h / 100 °C
3: 86 percent / butan-1-ol / 20 h / Heating
4: 88.6 percent / H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
5: sodium bisulfite / dimethylformamide / 2 h / Heating
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

5-methyl-6-<2-(2-furyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

5-methyl-6-<2-(2-furyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
2: 98 percent / hydrazine hydrate / acetic acid / 2.5 h / 100 °C
3: 86 percent / butan-1-ol / 20 h / Heating
4: 88.6 percent / H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
5: sodium bisulfite / dimethylformamide / 2 h / Heating
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

5-methyl-6-<2-(2-thienyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

5-methyl-6-<2-(2-thienyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
2: 98 percent / hydrazine hydrate / acetic acid / 2.5 h / 100 °C
3: 86 percent / butan-1-ol / 20 h / Heating
4: 88.6 percent / H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
5: sodium bisulfite / dimethylformamide / 2 h / Heating
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

5-methyl-6-<2-(4-thiazolyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

5-methyl-6-<2-(4-thiazolyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
2: 98 percent / hydrazine hydrate / acetic acid / 2.5 h / 100 °C
3: 86 percent / butan-1-ol / 20 h / Heating
4: 88.6 percent / H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
5: sodium bisulfite / dimethylformamide / 2 h / Heating
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

5-methyl-6-<2-(3-pyrazolyl)-5-benzimidazolyl>-2,3,4,5-tetrahydro-pyridazin-3-one

5-methyl-6-<2-(3-pyrazolyl)-5-benzimidazolyl>-2,3,4,5-tetrahydro-pyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
2: 98 percent / hydrazine hydrate / acetic acid / 2.5 h / 100 °C
3: 86 percent / butan-1-ol / 20 h / Heating
4: 88.6 percent / H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
5: 84 percent / sodium bisulfite / dimethylformamide / 2 h / Heating
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

(-)-5-methyl-6-<2-(3-pyrazolyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

(-)-5-methyl-6-<2-(3-pyrazolyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
3: hydrazine hydrate / acetic acid / 2.5 h / 100 °C
4: butan-1-ol / 20 h / Heating
5: H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
6: sodium bisulfite / dimethylformamide / 2 h / Heating
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

(+)-5-methyl-6-<2-(3-pyrazolyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

(+)-5-methyl-6-<2-(3-pyrazolyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
3: hydrazine hydrate / acetic acid / 2.5 h / 100 °C
4: butan-1-ol / 20 h / Heating
5: H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
6: sodium bisulfite / dimethylformamide / 2 h / Heating
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

5-methyl-6<2-(4-pyrazolyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

5-methyl-6<2-(4-pyrazolyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
2: 98 percent / hydrazine hydrate / acetic acid / 2.5 h / 100 °C
3: 86 percent / butan-1-ol / 20 h / Heating
4: 88.6 percent / H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
5: sodium bisulfite / dimethylformamide / 2 h / Heating
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

5-methyl-6-<2-(2-<4-bromothienyl>)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

5-methyl-6-<2-(2-<4-bromothienyl>)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
2: 98 percent / hydrazine hydrate / acetic acid / 2.5 h / 100 °C
3: 86 percent / butan-1-ol / 20 h / Heating
4: 88.6 percent / H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
5: sodium bisulfite / dimethylformamide / 2 h / Heating
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

5-methyl-6-<2-(2-<5-bromothienyl>)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

5-methyl-6-<2-(2-<5-bromothienyl>)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
2: 98 percent / hydrazine hydrate / acetic acid / 2.5 h / 100 °C
3: 86 percent / butan-1-ol / 20 h / Heating
4: 88.6 percent / H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
5: sodium bisulfite / dimethylformamide / 2 h / Heating
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

5-methyl-6-<2-(3-<1,5-dimethyl>-pyrazolyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

5-methyl-6-<2-(3-<1,5-dimethyl>-pyrazolyl)-5-benzimidazoyl>-2,3,4,5-tetrahydro-pyridazin-3-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
2: 98 percent / hydrazine hydrate / acetic acid / 2.5 h / 100 °C
3: 86 percent / butan-1-ol / 20 h / Heating
4: 88.6 percent / H2, 1N aq. HCL / 5percent Pd/C / methanol / 2 h
5: sodium bisulfite / dimethylformamide / 2 h / Heating
View Scheme
4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid
52240-25-2

4-(4-chlorophenyl)-3-methyl-4-oxobutanoic acid

5-methyl-6-[3'-nitro-4'-benzylamino-phenyl]-4,5-dihydro-3(2H)-pyridazinone
77469-62-6, 136609-89-7, 151870-46-1

5-methyl-6-[3'-nitro-4'-benzylamino-phenyl]-4,5-dihydro-3(2H)-pyridazinone

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 98 percent / nitric acid / 0.5 h / -15 - -10 °C
2: 98 percent / hydrazine hydrate / acetic acid / 2.5 h / 100 °C
3: 86 percent / butan-1-ol / 20 h / Heating
View Scheme
Multi-step reaction with 3 steps
1: nitric acid / water
2: hydrazine hydrate; acetic acid / water
3: butan-1-ol; water
View Scheme
Multi-step reaction with 4 steps
1.1: nitric acid / -15 - -10 °C / Inert atmosphere
2.1: hydrazine hydrate; acetic acid / 30 - 100 °C / Inert atmosphere
3.1: L-proline; sodium carbonate; sodium azide; sodium L-ascorbate; copper(ll) sulfate pentahydrate / dimethyl sulfoxide; water / 24 h / 70 °C / Inert atmosphere
4.1: acetic acid / 0.25 h / Inert atmosphere
4.2: 15.5 h / 10 - 20 °C
View Scheme
Multi-step reaction with 4 steps
1.1: nitric acid / -15 - -10 °C / Inert atmosphere
2.1: acetic acid; hydrazine hydrate / 4.5 h / 30 - 100 °C / Inert atmosphere
3.1: sodium carbonate; sodium azide; sodium L-ascorbate; L-proline; copper(ll) sulfate pentahydrate / dimethyl sulfoxide; water / 24 h / 70 °C / Inert atmosphere
4.1: acetic acid / 0.25 h / Inert atmosphere
4.2: 20 h / 10 °C / Inert atmosphere
View Scheme

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