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inquiryAs 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 according to the contract research and development services for the fine chemicals, ph
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inquiry3-PYRIDAZINECARBALDEHYDE,97% CAS:60170-83-4 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
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inquiryHello, 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
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inquiryHenan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod
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inquiryA substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc
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Min.Order:4 Kilogram
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inquiryJ&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
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inquiryZibo 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
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Min.Order:10 Gram
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Type:Lab/Research institutions
inquiryWe 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
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Shanghai Finebiotech Co.,Ltd.was established in 2020, which providing professional chemical services. As a customer-oriented company, we have distinguished ourself from others in providing worldwide customers with cost-effective and efficient service
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inquiry1.Our services:A.Supply sampleB.The packing also can be according the customers` requirmentC.Any inquiries will be replied within 24 hoursD.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate.
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inquiryFredchem focus on CRO/CMO business and its own R&D of API/Intermediates Package:Kilograms/MT Application:Pharmaceutical field Transportation:According to customer request Port:Shanghai
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inquiryAnsciep 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
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inquiry3-CARBALDEHYDEPYRIDAZINEAppearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:pharmaceutical intermediate Transportation:by air, by sea, by express
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
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inquiry60170-83-4 Application:intermediate
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inquiryStock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
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inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
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Min.Order:1 Kilogram
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inquiryWuhan Sun-shine Bio-technology Corporation Limited is specializing in the anticancer, antitumor,heart head blood-vessel,pharmaceutical intermediates,fine Chemicals production and customization. Company has strong ability of research and development
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inquiryApplication: It is an important raw material and in... DeliveryTime: prompt PackAge: according to the clients requirement Port: Shanghai ProductionCapacity: 1-10 Metric Ton/Month Purity: 99.8% Storage: Sto
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inquiry3-(2-phenylethenyl)pyridazine
pyridazine-3 carboxaldehyde
Conditions | Yield |
---|---|
With sodium periodate; osmium(VIII) oxide In water; acetone; tert-butyl alcohol at 20℃; for 48h; | 81% |
3-hydroxymethylpyridazine
pyridazine-3 carboxaldehyde
Conditions | Yield |
---|---|
With selenium(IV) oxide In 1,4-dioxane for 2h; Heating; | 52% |
With manganese(IV) oxide In 1,2-dichloro-ethane at 70℃; for 4h; |
Conditions | Yield |
---|---|
In methanol Heating; | 95% |
pyridazine-3 carboxaldehyde
4-(2-pyridylmethyl)thiosemicarbazide
C12H12N6S
Conditions | Yield |
---|---|
In methanol Heating; | 94% |
pyridazine-3 carboxaldehyde
pyridazine-3-carbaldehyde oxime
Conditions | Yield |
---|---|
With hydroxylamine hydrochloride; potassium carbonate In ethanol; water standing overnight in refrigerator; | 89% |
With hydroxylamine hydrochloride; potassium carbonate In ethanol at 80℃; for 2h; | 52% |
(E)-(2-nitrovinyl)cyclohexane
pyridazine-3 carboxaldehyde
(S)-2-cyclohexyl-3-nitro-1-(pyridazin-3-yl)propan-1-one
Conditions | Yield |
---|---|
With (5R,7R)-7-fluoro-5-isopropyl-2-(perfluorophenyl)-6,7-dihydro-5H-pyrrolo[2,1c][1,2,4]triazol-2-ium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In methanol at 0℃; Stetter reaction; Inert atmosphere; optical yield given as %ee; enantioselective reaction; | 88% |
(E)-methyl 3-cyanoacrylate
pyridazine-3 carboxaldehyde
Methyl 3-(3-Pyridazinyl)-2-cyanoacrylate
Conditions | Yield |
---|---|
triethylamine In methanol 50-60 deg C, 30 seconds, then r.t., 2h; | 87% |
azepane-1-carbothioic acid hydrazide
pyridazine-3 carboxaldehyde
Conditions | Yield |
---|---|
With acetic acid In methanol for 2h; Heating; | 86% |
pyrrolidine-1-carbothioic acid hydrazide
pyridazine-3 carboxaldehyde
Conditions | Yield |
---|---|
With acetic acid In methanol for 2h; Heating; | 86% |
piperidine-1-carbothioic acid hydrazide
pyridazine-3 carboxaldehyde
Conditions | Yield |
---|---|
With acetic acid In methanol for 2h; Heating; | 85% |
hydrazinecarbodithioic acid methyl ester
pyridazine-3 carboxaldehyde
Conditions | Yield |
---|---|
In isopropyl alcohol at 65 - 70℃; for 1h; | 85% |
pyridazine-3 carboxaldehyde
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 20℃; for 1h; | 79% |
Conditions | Yield |
---|---|
In methanol Heating; | 74% |
(S)-{cyclopropyl[4-(difluoromethoxy)phenyl]methyl}amine
pyridazine-3 carboxaldehyde
[(R)-cyclopropyl-(4-difluoromethoxyphenyl)methyl]pyridazin-3-ylmethylarnine
Conditions | Yield |
---|---|
Stage #1: (S)-{cyclopropyl[4-(difluoromethoxy)phenyl]methyl}amine; pyridazine-3 carboxaldehyde With sodium tris(acetoxy)borohydride; acetic acid In 1,2-dichloro-ethane at 20 - 35℃; Inert atmosphere; Stage #2: With potassium carbonate In water; 1,2-dichloro-ethane | 73% |
3-azabicyclo<3.2.2>nonane-3-thiocarboxylic acid hydrazide
pyridazine-3 carboxaldehyde
Conditions | Yield |
---|---|
With acetic acid In methanol for 2h; Heating; | 72% |
pyridazine-3 carboxaldehyde
(6-chloropyridin-3-yl)(pyridazin-3-yl)methanone
Conditions | Yield |
---|---|
With 2-pentafluorophenyl-6,7-dihydro-5H-pyrrolo[2,1-c][1,2,4]triazol-2-ium tetrafluoroborate; dmap; water In dichloromethane at -40℃; for 16h; Inert atmosphere; | 63% |
1H-indene-1,3(2H)-dione
pyridazine-3 carboxaldehyde
Conditions | Yield |
---|---|
With piperidine In methanol for 1.5h; Heating; | 62% |
Conditions | Yield |
---|---|
In methanol Heating; | 60% |
pyridazine-3 carboxaldehyde
(triphenylphosphoranylidene)acetaldehyde
3-(3-Pirydazinyl)-propenal
Conditions | Yield |
---|---|
In benzene at 5℃; for 2h; | 59% |
Methyl diethylphosphonoacetate
pyridazine-3 carboxaldehyde
Conditions | Yield |
---|---|
Stage #1: Methyl diethylphosphonoacetate With sodium hydride In tetrahydrofuran; mineral oil at 0℃; for 0.5h; Inert atmosphere; Stage #2: pyridazine-3 carboxaldehyde In tetrahydrofuran; mineral oil at 0℃; for 1.5h; | 57% |
diethoxyphosphoryl-acetic acid ethyl ester
pyridazine-3 carboxaldehyde
ethyl (E)-3-(pyridazin-3-yl)acrylate
Conditions | Yield |
---|---|
Stage #1: diethoxyphosphoryl-acetic acid ethyl ester With sodium hydride In tetrahydrofuran; mineral oil at 0℃; for 0.5h; Stage #2: pyridazine-3 carboxaldehyde In tetrahydrofuran; mineral oil at 0 - 20℃; for 1h; | 50.97% |
Stage #1: diethoxyphosphoryl-acetic acid ethyl ester With sodium hydride In tetrahydrofuran; mineral oil at 0℃; for 0.5h; Stage #2: pyridazine-3 carboxaldehyde In tetrahydrofuran; mineral oil at 20℃; for 1h; | 50.97% |
With sodium hydride; N,N-dimethyl-formamide at 60℃; for 4h; | 44% |
acetoacetic acid methyl ester
pyridazine-3 carboxaldehyde
Dimethyl 2,6-Dimethyl-4-(3-pyridazinyl)-1,4-dihydropyridine-3,5-dicarboxylate
Conditions | Yield |
---|---|
With ammonium hydroxide In methanol for 1h; Heating; | 49% |
pyridazine-3 carboxaldehyde
malonic acid dimethyl ester
Dimethyl malonate
Conditions | Yield |
---|---|
diethylamine In methanol at -10℃; for 5h; | 45% |
1-(2-hydroxyethyl)piperazine
2-thioxo-4-thiazolidinone
pyridazine-3 carboxaldehyde
Conditions | Yield |
---|---|
With acetic acid In methanol for 4h; Reflux; Inert atmosphere; | 37.1% |
pyridazine-3 carboxaldehyde
malonic acid dimethyl ester
Dimethyl (3-Pyridazinylmethylene)malonate
Conditions | Yield |
---|---|
diethylamine In dichloromethane for 10h; Ambient temperature; | 30% |
isopropyl acetoacetate
pyridazine-3 carboxaldehyde
Diisopropyl 2,6-Dimethyl-4-(3-pyridazinyl)-1,4-dihydropyridine-3,5-dicarboxylate
Conditions | Yield |
---|---|
With ammonium hydroxide In methanol for 12h; Heating; | 28% |
malonic acid
pyridazine-3 carboxaldehyde
(E)-3-(pyridazin-3-yl)acrylic acid
Conditions | Yield |
---|---|
With pyridine at 80℃; for 2h; | 27% |
pyridazine-3 carboxaldehyde
Conditions | Yield |
---|---|
Stage #1: C11H10F3IN2O5S; pyridazine-3 carboxaldehyde With 2-pentafluorophenyl-6,7-dihydro-5H-pyrrolo[2,1-c][1,2,4]triazol-2-ium tetrafluoroborate; tert-butyl alcohol In 1,2-dichloro-ethane at 0℃; for 0.0833333h; Schlenk technique; Sealed tube; Inert atmosphere; Stage #2: With N,N,N,N,-tetramethylethylenediamine In 1,2-dichloro-ethane at 0℃; for 10h; Schlenk technique; Sealed tube; Inert atmosphere; | 26% |
ethyl acetoacetate
pyridazine-3 carboxaldehyde
Diethyl 2,6-Dimethyl-4-(3-pyridazinyl)-1,4-dihydropyridine-3,5-dicarboxylate
Conditions | Yield |
---|---|
With ammonium hydroxide In methanol for 1h; Heating; | 22% |
ethyl aminocrotonate
acetoacetic acid methyl ester
pyridazine-3 carboxaldehyde
Ethyl Methyl 2,6-Dimethyl-4-(3-pyridazinyl)-1,4-dihydropyridine-3,5-dicarboxylate
Conditions | Yield |
---|---|
1) EtOH, reflux, 10 min, 2) EtOH, reflux, 2.5h; Yield given. Multistep reaction; |
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