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hangzhou verychem science and technology co.ltd

Product name:6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone Cas No: 36725-28-7 Assay: 99%min Hangzhou Verychem Science And Technology Co. Ltd. was set up in year 2004, it’s a young but

6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Cas:36725-28-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Dayang Chem (Hangzhou) Co.,Ltd.

DayangChem exported this product to many countries and regions at best price. If you are looking for the material's manufacturer or supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product spe

6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Cas:36725-28-7

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

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 6-(4-Aminophenyl)-4,5-Dihydro-5-Methyl-3(2H)-Pyridazinone supplier in China

Cas:36725-28-7

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

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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

(±)-6-(4-Aminophenyl)-5-methyl-2,3,4,5-tetrahydro-3-pyridazinone

Cas:36725-28-7

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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 36725-28-7 with best quality

Cas:36725-28-7

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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LIDE PHARMACEUTICALS LIMITED

Advantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the R&amp

Hebei Nengqian Chemical Import and Export Co., LTD

With our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturin

6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Cas:36725-28-7

Min.Order:1 Kilogram

FOB Price: $1.0 / 10.0

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

3(2H)-Pyridazinone,6-(4-aminophenyl)-4,5-dihydro-5-methyl- 36725-28-7

Cas:36725-28-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone CAS:36725-28-7 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, spec

6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone CAS:36725-28-7

Cas:36725-28-7

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

3(2H)-Pyridazinone,6-(4-aminophenyl)-4,5-dihydro-5-methyl-

Cas:36725-28-7

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

3(2H)-Pyridazinone,6-(4-aminophenyl)-4,5-dihydro-5-methyl-

Cas:36725-28-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd

Levosimendan intermediate CAS:36725-28-7 Specification:in-house Stock:Fresh Purity:97% min Application:36725-28-7

6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Cas:36725-28-7

Min.Order:1 Gram

Negotiable

Type:Trading Company

inquiry

Afine Chemicals Limited

Our Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter

6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Cas:36725-28-7

Min.Order:1 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

3(2H)-Pyridazinone,6-(4-aminophenyl)-4,5-dihydro-5-methyl-

Cas:36725-28-7

Min.Order:0

Negotiable

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 6-(4-Aminophenyl)-4,5-Dihydro-5-Methyl-3(2H)-Pyridazinone

Cas:36725-28-7

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Henan Tianfu Chemical Co., Ltd.

Our company was built in 2009 with an ISO certificate.In the past 6 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so

TIANFUCHEM--36725-28-7---C11H13N3O

Cas:36725-28-7

Min.Order:1 Metric Ton

FOB Price: $5000.0

Type:Lab/Research institutions

inquiry

Siwei Development Group Ltd.

Product name: 6-(4-Aminophenyl)-4,5-Dihydro-5-Methyl-3(2H)-Pyridazinone CAS No.:36725-28-7 Molecule Formula:C11H13N3O Molecule Weight:203.24 Purity: 99.0% Package: 25kg/drum Description:White powder Manufacture Standards:Enterprise St

High Quality 6-(4-Aminophenyl)-4,5-Dihydro-5-Methyl-3(2H)-Pyridazinone

Cas:36725-28-7

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

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,

6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Cas:36725-28-7

Min.Order:1 Milligram

Negotiable

Type:Trading Company

inquiry

Hunan chemfish Pharmaceutical co.,Ltd

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

6-(4-Amino-phenyl)-5-methyl-4,5-dihydro-2H-pyridazin-3-one

Cas:36725-28-7

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Win-Win chemical Co.Ltd

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

6-(4-Aminophenyl)-4,5-Dihydro-5-Methyl-3(2H)-Pyridazinone cas no. 36725-28-7 98%

Cas:36725-28-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Suzhou Sibian Chemical Technology Co., Ltd

The process is mature and can be mass produced to 100 kg, with good quality and purity up to 99%.The product has a large stock and can be supplied stably. Package:bottle Application:Drug R&D Transportation:Sealed drying(25℃) Port:ShangHai

6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Cas:36725-28-7

Min.Order:1 Gram

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

6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Cas:36725-28-7

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

6-(4-AMinophenyl)-5-Methyl-4,5-dihydro-2H-pyridazin-3-one

Cas:36725-28-7

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

GIHI CHEMICALS CO.,LIMITED

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

6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Cas:36725-28-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

DB BIOTECH CO., LTD

Q1: Are you a manufacturer Answer: Yes, we are factory founded on 2012.Q2: How to contact with us Click "contact supplier" And then send us message the product you interest in, you will get reply within 12 hours.Q3:Which kind of payment terms do you

6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Cas:36725-28-7

Min.Order:0

Negotiable

Type:Trading Company

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

6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Cas:36725-28-7

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Aecochem Corp.

Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS

6-(4-Aminophenyl)-4,5-Dihydro-5-Methyl-3(2H)-Pyridazinone

Cas:36725-28-7

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Hubei Taiho Chemical Co.,LTD

TAIHO Unique Advantages:1.We're factory2.Free samples available3.Commodity inspection can be done4.ISO9001,Kosher certifications5.10 years experiences Storage:Store in cool &dry place Package:aluminium foil bag/fiber can/plastic drum Application:comp

6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Cas:36725-28-7

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Xian Changyue Biological Technology Co., Ltd.

best seller Application:API

6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Cas:36725-28-7

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

3(2H)-Pyridazinone,6-(4-aminophenyl)-4,5-dihydro-5-methyl-

Cas:36725-28-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

4-(4-aminophenyl)-3-methyl-4-oxobutanoic acid hydrochloride
120757-13-3

4-(4-aminophenyl)-3-methyl-4-oxobutanoic acid hydrochloride

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Conditions
ConditionsYield
With hydrazine hydrate In ethanol for 3h; Heating;98.4%
With hydrazine hydrate In water for 1.5h; Heating;87%
With hydrazine hydrate at 80℃; for 18h;65%
SKF 93741
36725-27-6

SKF 93741

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Conditions
ConditionsYield
With hydrogenchloride for 1.25h; Heating;76%
(3S)-4-(4-aminophenyl)-3-methyl-4-oxobutanoic acid

(3S)-4-(4-aminophenyl)-3-methyl-4-oxobutanoic acid

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Conditions
ConditionsYield
With hydrazine hydrate In propan-1-ol at 20 - 100℃; for 4h;49%
4-(4-acetamidophenyl)-4-oxobutanoic acid
5473-15-4

4-(4-acetamidophenyl)-4-oxobutanoic acid

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: 62 percent / H2O / 1) room temperature, overnight, 2) steam bath, 2 h
2: conc. H2SO4 / 1 h / Heating
3: pyridine
4: H2 / Raney Nickel / methanol / 0.33 h / 1034.3 Torr
5: 90 percent / hydrazine hydrate / ethanol; H2O / 2 h / Heating
6: 76 percent / 1 M aq. HCl / 1.25 h / Heating
View Scheme
N-[4-(2-chloro-1-oxopropyl)phenyl]acetamide
81112-08-5

N-[4-(2-chloro-1-oxopropyl)phenyl]acetamide

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 1) NaH / 1) DMF, room temperature, overnight, 2) DMF, 110 deg C, 3 h
2: 1.) HCl/EtOH, 2.) 6N aq. HCl / 2 h / Heating; 1.) reflux, 2 h, 2.) reflux, 2 h
3: 87 percent / hydrazine hydrate / H2O / 1.5 h / Heating
View Scheme
3-(4-Acetylamino-benzoyl)-but-3-enoic acid methyl ester
120757-16-6

3-(4-Acetylamino-benzoyl)-but-3-enoic acid methyl ester

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: H2 / Raney Nickel / methanol / 0.33 h / 1034.3 Torr
2: 90 percent / hydrazine hydrate / ethanol; H2O / 2 h / Heating
3: 76 percent / 1 M aq. HCl / 1.25 h / Heating
View Scheme
methyl 3-(4-acetaminobenzoyl)butyrate
120757-17-7

methyl 3-(4-acetaminobenzoyl)butyrate

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 90 percent / hydrazine hydrate / ethanol; H2O / 2 h / Heating
2: 76 percent / 1 M aq. HCl / 1.25 h / Heating
View Scheme
4-(4-Amino-phenyl)-4-oxo-3-piperidin-1-ylmethyl-butyric acid methyl ester
120757-15-5

4-(4-Amino-phenyl)-4-oxo-3-piperidin-1-ylmethyl-butyric acid methyl ester

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: pyridine
2: H2 / Raney Nickel / methanol / 0.33 h / 1034.3 Torr
3: 90 percent / hydrazine hydrate / ethanol; H2O / 2 h / Heating
4: 76 percent / 1 M aq. HCl / 1.25 h / Heating
View Scheme
2-ethoxycarbonyl-3-(4-acetamidobenzoyl)butyric acid ethyl ester
81937-39-5

2-ethoxycarbonyl-3-(4-acetamidobenzoyl)butyric acid ethyl ester

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 1.) HCl/EtOH, 2.) 6N aq. HCl / 2 h / Heating; 1.) reflux, 2 h, 2.) reflux, 2 h
2: 87 percent / hydrazine hydrate / H2O / 1.5 h / Heating
View Scheme
Stage #1: 2-ethoxycarbonyl-3-(4-acetamidobenzoyl)butyric acid ethyl ester With sodium hydroxide In water for 4h;
Stage #2: With hydrogenchloride In water at 100℃; for 3h; pH=1; Further stages;
1.8 g
3-(4-acetamidobenzoyl)-4-(N-piperidinyl)butanoic acid
120757-14-4

3-(4-acetamidobenzoyl)-4-(N-piperidinyl)butanoic acid

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: conc. H2SO4 / 1 h / Heating
2: pyridine
3: H2 / Raney Nickel / methanol / 0.33 h / 1034.3 Torr
4: 90 percent / hydrazine hydrate / ethanol; H2O / 2 h / Heating
5: 76 percent / 1 M aq. HCl / 1.25 h / Heating
View Scheme
Acetanilid
103-84-4

Acetanilid

dichloroiodo-benzene

dichloroiodo-benzene

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: 61 percent / AlCl3 / CH2Cl2 / Ambient temperature; overnight
2: 1) NaH / 1) DMF, room temperature, overnight, 2) DMF, 110 deg C, 3 h
3: 1.) HCl/EtOH, 2.) 6N aq. HCl / 2 h / Heating; 1.) reflux, 2 h, 2.) reflux, 2 h
4: 87 percent / hydrazine hydrate / H2O / 1.5 h / Heating
View Scheme
(5S)-6-(4-aminophenyl)-5-methyl-4,5-dihydropyridazin-3(2H)-one
101328-84-1

(5S)-6-(4-aminophenyl)-5-methyl-4,5-dihydropyridazin-3(2H)-one

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Conditions
ConditionsYield
With sodium hydroxide at 90℃;
N-(4-propionylphenyl)acetamide
16960-49-9

N-(4-propionylphenyl)acetamide

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: bromine / chloroform
1.2: 24 h / 20 °C / pH 8
2.1: sodium ethanolate / ethanol / Cooling with ice
2.2: 8.17 h / 35 - 75 °C
3.1: sodium hydroxide / water / 4 h
3.2: 3 h / 100 °C / pH 1
View Scheme
N-(4-(2-bromopropionyl)phenyl)acetamide
63514-63-6

N-(4-(2-bromopropionyl)phenyl)acetamide

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: sodium ethanolate / ethanol / Cooling with ice
1.2: 8.17 h / 35 - 75 °C
2.1: sodium hydroxide / water / 4 h
2.2: 3 h / 100 °C / pH 1
View Scheme
Acetanilid
103-84-4

Acetanilid

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: carbon disulfide; aluminum (III) chloride / 50 °C
2.1: bromine / chloroform
2.2: 24 h / 20 °C / pH 8
3.1: sodium ethanolate / ethanol / Cooling with ice
3.2: 8.17 h / 35 - 75 °C
4.1: sodium hydroxide / water / 4 h
4.2: 3 h / 100 °C / pH 1
View Scheme
3-bromopropylamine tert-butylcarbamate
83948-53-2

3-bromopropylamine tert-butylcarbamate

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

tert-butyl {3-[3-(4-aminophenyl)-4-methyl-6-oxo-5,6-dihydropyridazin-1(4H)-yl]propyl}carbamate

tert-butyl {3-[3-(4-aminophenyl)-4-methyl-6-oxo-5,6-dihydropyridazin-1(4H)-yl]propyl}carbamate

Conditions
ConditionsYield
Stage #1: 6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone With sodium hydride In N,N-dimethyl-formamide
Stage #2: 3-bromopropylamine tert-butylcarbamate With tetra-(n-butyl)ammonium iodide In N,N-dimethyl-formamide at 20℃; Cooling with ice;
100%
3-Bromopropionyl chloride
15486-96-1

3-Bromopropionyl chloride

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

6-<4-(3-bromopropionamido)phenyl>-5-methyl-4,5-dihydro-3(2H)-pyridazinone
111794-34-4

6-<4-(3-bromopropionamido)phenyl>-5-methyl-4,5-dihydro-3(2H)-pyridazinone

Conditions
ConditionsYield
In acetonitrile for 3h; Heating;99%
With sodium hydrogencarbonate In dichloromethane
C9H6ClNO4

C9H6ClNO4

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)-6-nitrobenzo[d][1,3]dioxole-5-carboxamide

N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)-6-nitrobenzo[d][1,3]dioxole-5-carboxamide

Conditions
ConditionsYield
With triethylamine In N,N-dimethyl-formamide at 0 - 20℃;88.7%
6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

C22H23N7O2

C22H23N7O2

Conditions
ConditionsYield
With hydrogenchloride; sodium nitrite In water at 0℃; for 1h;86%
3-bromopropanol methyl ether
36865-41-5

3-bromopropanol methyl ether

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

6-(4-aminophenyl)-2-(3-methoxypropyl)-5-methyl-4,5-dihydropyridazin-3(2H)-one

6-(4-aminophenyl)-2-(3-methoxypropyl)-5-methyl-4,5-dihydropyridazin-3(2H)-one

Conditions
ConditionsYield
Stage #1: 6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone With sodium hydride In N,N-dimethyl-formamide; mineral oil at 0 - 20℃; for 0.5h;
Stage #2: 3-bromopropanol methyl ether In N,N-dimethyl-formamide; mineral oil at 0 - 20℃;
85%
2,4,5-trifluoro-3-methylbenzamide
112822-86-3

2,4,5-trifluoro-3-methylbenzamide

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

2,4,5-trifluoro-3-methyl-N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)benzamide

2,4,5-trifluoro-3-methyl-N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)benzamide

Conditions
ConditionsYield
With triethylamine In N,N-dimethyl-formamide at 20℃;84.2%
3-methyl-4-nitro-benzoyl chloride
35675-46-8

3-methyl-4-nitro-benzoyl chloride

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

3-methyl-4-nitro-N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)benzamide

3-methyl-4-nitro-N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)benzamide

Conditions
ConditionsYield
With triethylamine In N,N-dimethyl-formamide at 0 - 20℃;83.2%
6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

6-(4-hydrazinophenyl)-5-methyl-4,5-dihydro-2H-pyridazin-3-one hydrochloride

6-(4-hydrazinophenyl)-5-methyl-4,5-dihydro-2H-pyridazin-3-one hydrochloride

Conditions
ConditionsYield
Stage #1: 6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone With hydrogenchloride; sodium nitrite at 0℃; for 0.5h;
Stage #2: With hydrogenchloride; tin(ll) chloride at 0℃; for 1h;
83%
4-chloro-6-methoxy-2-methylquinoline
50593-73-2

4-chloro-6-methoxy-2-methylquinoline

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

C22H22N4O2

C22H22N4O2

Conditions
ConditionsYield
In butan-1-ol for 4h; Heating;83%
5-chloro-2-nitrobenzoyl chloride
41994-44-9

5-chloro-2-nitrobenzoyl chloride

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

5-chloro-2-nitro-N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)benzamide

5-chloro-2-nitro-N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)benzamide

Conditions
ConditionsYield
With triethylamine In N,N-dimethyl-formamide at 20℃;76.3%
ethyl iodide
75-03-6

ethyl iodide

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

6-(4-aminophenyl)-2-ethyl-5-methyl-4,5-dihydropyridazin-3(2H)-one

6-(4-aminophenyl)-2-ethyl-5-methyl-4,5-dihydropyridazin-3(2H)-one

Conditions
ConditionsYield
Stage #1: 6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone With tetra-(n-butyl)ammonium iodide; sodium hydride In N,N-dimethyl-formamide; mineral oil at 0℃; for 0.5h;
Stage #2: ethyl iodide In N,N-dimethyl-formamide; mineral oil at 20℃; Reagent/catalyst;
76%
N-carbobenzoxy-β-alanine-p-nitrophenyl ester
3642-91-9

N-carbobenzoxy-β-alanine-p-nitrophenyl ester

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

6-<4-<3-<(benzyloxycarbonyl)amino>propionamido>phenyl>-5-methyl-4,5-dihydro-3(2H)-pyridazinone
111794-60-6

6-<4-<3-<(benzyloxycarbonyl)amino>propionamido>phenyl>-5-methyl-4,5-dihydro-3(2H)-pyridazinone

Conditions
ConditionsYield
In N,N-dimethyl-formamide73%
Cyclopentyl bromide
137-43-9

Cyclopentyl bromide

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

6-(4-aminophenyl)-2-cyclopentyl-5-methyl-4,5-dihydropyridazin-3(2H)-one

6-(4-aminophenyl)-2-cyclopentyl-5-methyl-4,5-dihydropyridazin-3(2H)-one

Conditions
ConditionsYield
Stage #1: 6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone With sodium hydride In N,N-dimethyl-formamide; mineral oil at 0℃; for 1h;
Stage #2: Cyclopentyl bromide In N,N-dimethyl-formamide; mineral oil at 20℃; for 2h;
71%
4-chloro-2-nitro-benzoyl chloride
41995-04-4

4-chloro-2-nitro-benzoyl chloride

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

4-chloro-2-nitro-N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)benzamide

4-chloro-2-nitro-N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)benzamide

Conditions
ConditionsYield
With triethylamine In N,N-dimethyl-formamide at 0 - 20℃;65.7%
2,4-dichloro-5-fluorobenzoyl chloride
86393-34-2

2,4-dichloro-5-fluorobenzoyl chloride

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

2,4-dichloro-5-fluoro-N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)benzamide

2,4-dichloro-5-fluoro-N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)benzamide

Conditions
ConditionsYield
With triethylamine In N,N-dimethyl-formamide at 20℃;65.4%
dimethyl N-cyanodithioiminocarbonate
10191-60-3

dimethyl N-cyanodithioiminocarbonate

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

6-<4-(N'-cyano-S-methylisothioureido)phenyl>-5-methyl-4,5-dihydropyridazin-3(2H)-one
99591-85-2, 123466-25-1

6-<4-(N'-cyano-S-methylisothioureido)phenyl>-5-methyl-4,5-dihydropyridazin-3(2H)-one

Conditions
ConditionsYield
With pyridine for 3.5h; Heating;65%
3-Chloro-2,4,5-trifluorobenzoyl chloride
101513-78-4

3-Chloro-2,4,5-trifluorobenzoyl chloride

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

3-chloro-2,4,5-trifluoro-N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)benzamide

3-chloro-2,4,5-trifluoro-N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)benzamide

Conditions
ConditionsYield
With triethylamine In N,N-dimethyl-formamide at 20℃;63.8%
di(succinimido) carbonate
74124-79-1

di(succinimido) carbonate

2,3-dihydro-1H-pyrrolo[3,4-c]pyridine dihydrogen chloride
6000-50-6

2,3-dihydro-1H-pyrrolo[3,4-c]pyridine dihydrogen chloride

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

N-[4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl]-1,3-dihydro-2H-pyrrolo[3,4-c]pyridine-2-carboxamide

N-[4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl]-1,3-dihydro-2H-pyrrolo[3,4-c]pyridine-2-carboxamide

Conditions
ConditionsYield
Stage #1: di(succinimido) carbonate; 6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone With dmap In tetrahydrofuran at 20℃; for 72h;
Stage #2: 2,3-dihydro-1H-pyrrolo[3,4-c]pyridine dihydrogen chloride With triethylamine In tetrahydrofuran; N,N-dimethyl-formamide
63%
1,3-Dihydro-isobenzofuran-5-carbonyl chloride
153967-93-2

1,3-Dihydro-isobenzofuran-5-carbonyl chloride

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)benzo[d][1,3]dioxole-5-carboxamide

N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)benzo[d][1,3]dioxole-5-carboxamide

Conditions
ConditionsYield
With triethylamine In N,N-dimethyl-formamide at 0 - 20℃;60.5%
4-chloro-2,6-dimethylquinoline
6270-08-2

4-chloro-2,6-dimethylquinoline

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

C22H22N4O

C22H22N4O

Conditions
ConditionsYield
In butan-1-ol for 4h; Heating;60%
pyruvic acid methyl ester
600-22-6

pyruvic acid methyl ester

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

methyl 2-(2-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)hydrazono)propanoate

methyl 2-(2-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)hydrazono)propanoate

Conditions
ConditionsYield
Stage #1: 6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone With hydrogenchloride; sodium nitrite In water at 0℃; for 0.166667h;
Stage #2: With hydrogenchloride; tin(II) chloride dihdyrate In water at 0℃; for 0.166667h;
Stage #3: pyruvic acid methyl ester In water at 20℃; for 0.5h;
60%
2,3-dichlorobenzoyl chloride
2905-60-4

2,3-dichlorobenzoyl chloride

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

2,3-dichloro-N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)benzamide

2,3-dichloro-N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)benzamide

Conditions
ConditionsYield
With triethylamine In N,N-dimethyl-formamide at 0 - 20℃;59.5%
1-trimethylsiloxy-3-bromo-propane
34714-04-0

1-trimethylsiloxy-3-bromo-propane

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

6-(4-aminophenyl)-5-methyl-2-{3-[(trimethylsilyl)oxy]propyl}-4,5-dihydropyridazin-3(2H)-one

6-(4-aminophenyl)-5-methyl-2-{3-[(trimethylsilyl)oxy]propyl}-4,5-dihydropyridazin-3(2H)-one

Conditions
ConditionsYield
Stage #1: 6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone With tetra-(n-butyl)ammonium iodide; sodium hydride In N,N-dimethyl-formamide; mineral oil at 0℃; for 0.5h;
Stage #2: 1-trimethylsiloxy-3-bromo-propane In N,N-dimethyl-formamide; mineral oil at 20℃;
58%
6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

5-methyl-6-phenyl-4,5-dihydro-2H-pyridazin-3-one
110766-33-1

5-methyl-6-phenyl-4,5-dihydro-2H-pyridazin-3-one

Conditions
ConditionsYield
Stage #1: 6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone With hydrogenchloride; sodium nitrite In water at 0℃; for 0.333333h;
Stage #2: With hypophosphorous acid In water
55%
2-chloropropionyl chloride
7623-09-8

2-chloropropionyl chloride

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

amipizone
69635-63-8

amipizone

Conditions
ConditionsYield
In tetrahydrofuran for 6h; Heating;54%
2-(tert-butyldimethylsilyloxy)ethyl bromide
86864-60-0

2-(tert-butyldimethylsilyloxy)ethyl bromide

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

6-(4-aminophenyl)-2-(2-{[tert-butyl(dimethyl)silyl]oxy}ethyl)-5-methyl-4,5-dihydropyridazin-3(2H)-one

6-(4-aminophenyl)-2-(2-{[tert-butyl(dimethyl)silyl]oxy}ethyl)-5-methyl-4,5-dihydropyridazin-3(2H)-one

Conditions
ConditionsYield
Stage #1: 6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone With sodium hydride In N,N-dimethyl-formamide; mineral oil at 20℃; for 0.333333h;
Stage #2: With tetra-(n-butyl)ammonium iodide In N,N-dimethyl-formamide; mineral oil for 0.25h;
Stage #3: 2-(tert-butyldimethylsilyloxy)ethyl bromide In N,N-dimethyl-formamide; mineral oil at 0 - 20℃; for 14h;
53%
Stage #1: 6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone With sodium hydride In N,N-dimethyl-formamide; mineral oil at 20℃; for 0.333333h;
Stage #2: 2-(tert-butyldimethylsilyloxy)ethyl bromide With tetra-(n-butyl)ammonium iodide In N,N-dimethyl-formamide; mineral oil at 0 - 20℃; for 14h;
3-chlorobutanoyl chloride
1951-11-7

3-chlorobutanoyl chloride

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

3-Chloro-N-[4-(4-methyl-6-oxo-1,4,5,6-tetrahydro-pyridazin-3-yl)-phenyl]-butyramide
85221-85-8

3-Chloro-N-[4-(4-methyl-6-oxo-1,4,5,6-tetrahydro-pyridazin-3-yl)-phenyl]-butyramide

Conditions
ConditionsYield
In tetrahydrofuran for 6h; Heating;52%
2,3,4,5-tetrafluorobenzoyl chloride
94695-48-4

2,3,4,5-tetrafluorobenzoyl chloride

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone
36725-28-7

6-(4-aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone

2,4,3,5-tetrafluoro-N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)benzamide

2,4,3,5-tetrafluoro-N-(4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)benzamide

Conditions
ConditionsYield
With triethylamine In N,N-dimethyl-formamide at 20℃;51.2%

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