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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

2,3-bis-(Chloromethyl)pyridine

Cas:45754-12-9

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

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

2,3-BIS(CHLOROMETHYL)PYRIDINE

Cas:45754-12-9

Min.Order:10 Kilogram

FOB Price: $20.0 / 30.0

Type:Trading Company

inquiry

Shanghai Upbio Tech Co.,Ltd

1.In No Less 10 years exporting experience. you 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 Specializ

Pyridine,2,3-bis(chloromethyl)-

Cas:45754-12-9

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

2,3-BIS(CHLOROMETHYL)PYRIDINE CAS:45754-12-9 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 org

2,3-BIS(CHLOROMETHYL)PYRIDINE CAS:45754-12-9

Cas:45754-12-9

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

Pyridine,2,3-bis(chloromethyl)-

Cas:45754-12-9

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

Pyridine,2,3-bis(chloromethyl)-

Cas:45754-12-9

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Quanhe Biotechnology Co. LTD

1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures s

2,3-BIS(CHLOROMETHYL)PYRIDINE

Cas:45754-12-9

Min.Order:1 Kilogram

FOB Price: $40.0 / 50.0

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

Pyridine,2,3-bis(chloromethyl)-

Cas:45754-12-9

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

2,3-bis(chloromethyl)pyridine

Cas:45754-12-9

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

2,3-BIS(CHLOROMETHYL)PYRIDINE

Cas:45754-12-9

Min.Order:100 Gram

FOB Price: $100.0 / 2000.0

Type:Lab/Research institutions

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

2,3-BIS(CHLOROMETHYL)PYRIDINE

Cas:45754-12-9

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

2,3-BIS(CHLOROMETHYL)PYRIDINE

Cas:45754-12-9

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

KAISA GROUP INC

1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer

2,3-BIS(CHLOROMETHYL)PYRIDINE

Cas:45754-12-9

Min.Order:1 Metric Ton

FOB Price: $1.5

Type:Trading Company

inquiry

Bluecrystal chem-union

We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp

2,3-BIS(CHLOROMETHYL)PYRIDINE

Cas:45754-12-9

Min.Order:1 Metric Ton

FOB Price: $1.0

Type:Trading Company

inquiry

GIHI CHEMICALS CO.,LIMITED

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

2,3-bis-(Chloromethyl)pyridine

Cas:45754-12-9

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

2,3-bis(chloromethyl)pyridine

Cas:45754-12-9

Min.Order:0

Negotiable

Type:Other

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

Pyridine,2,3-bis(chloromethyl)-

Cas:45754-12-9

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Henan Tianfu Chemical Co., Ltd.

Pyridine,2,3-bis(chloromethyl)- Application:Organic Chemicals

Pyridine,2,3-bis(chloromethyl)-

Cas:45754-12-9

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hubei Langyou International Trading Co., Ltd

2,3-BIS(CHLOROMETHYL)PYRIDINE Application:2,3-BIS(CHLOROMETHYL)PYRIDINE

2,3-BIS(CHLOROMETHYL)PYRIDINE

Cas:45754-12-9

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

2,3-BIS(CHLOROMETHYL)PYRIDINE

Cas:45754-12-9

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou ZeErRui Chemical Co., Ltd.

Hangzhou ZeErRui Chemical Co., Ltd. is focused on customization, research and development and production of APIs and advanced intermediates, which can effectively compensate for the deficiencies of traditional CRO and CMO. Priority of high-tech barri

2,3-BIS(CHLOROMETHYL)PYRIDINE

Cas:45754-12-9

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

SAGECHEM LIMITED

laboratory Application:Synthetic building block

Pyridine,2,3-bis(chloromethyl)-

Cas:45754-12-9

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Wuhan Newgreat Chemical Co., Ltd

Wuhan Xinweiye Chemical Co., Ltd. is mainly engaged in the process development and production of customized synthesis and pharmaceutical intermediates. We have professional researchers in organic synthesis, analytical chemistry and production process

2,3-BIS(CHLOROMETHYL)PYRIDINE

Cas:45754-12-9

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hunan Longxianng Runhui Trading Co.,Ltd

2,3-BIS(CHLOROMETHYL)PYRIDINEAppearance:powder Package:aluminium foil bag drum Application:in research Transportation:By express (Door to door) such as FEDEX, DHL, EMS for small amount. By air(airport to airport) or by sea LCL/FCL for large amount.

2,3-BIS(CHLOROMETHYL)PYRIDINE

Cas:45754-12-9

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

45754-12-9

Cas:45754-12-9

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Saiwante (shanghai) New Material Technology Co., Ltd.

Stable supply of goods and provision of high-quality services Application:As raw materials in the field of medicine and biology

2,3-BIS(CHLOROMETHYL)PYRIDINE

Cas:45754-12-9

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Chemlyte Solutions

factory?direct?sale Application:Fine chemical intermediates, used as the main raw material for the synthesis of various pesticides, medicines, surfactants, polymer monomers, and antifungal agents

2,3-BIS(CHLOROMETHYL)PYRIDINE

Cas:45754-12-9

Min.Order:0

Negotiable

Type:Other

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

2,3-BIS(CHLOROMETHYL)PYRIDINE

Cas:45754-12-9

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hebei Luspharm Trading Co.,Ltd

Our strength We have clients throughout the world: Professional service and rich experience make customers feel at ease, adequate stock and fast delivery meet your desire. Our Laboratoy We have our own independent lab test center: This ma

2,3-BIS(CHLOROMETHYL)PYRIDINE

Cas:45754-12-9

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Wuhan New-Rise Biochem Co,. Ltd

Application: 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

2,3-BIS(CHLOROMETHYL)PYRIDINE

Cas:45754-12-9

Min.Order:1 Gram

Negotiable

Type:Trading Company

inquiry

Synthetic route

2,3-bis(hydroxymethyl)pyridine hydrochloride
423169-40-8

2,3-bis(hydroxymethyl)pyridine hydrochloride

2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

Conditions
ConditionsYield
With thionyl chloride In toluene89%
2,3-bis(hydroxymethyl)pyridine
38070-79-0

2,3-bis(hydroxymethyl)pyridine

2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

Conditions
ConditionsYield
With thionyl chloride In dichloromethane at 45℃; Cooling with ice;40%
With thionyl chloride In dichloromethane at 75℃; for 1h;26%
With thionyl chloride In dichloromethane Heating / reflux;24%
2,3-diethyl pyridinedicarboxylate
2050-22-8

2,3-diethyl pyridinedicarboxylate

2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

Conditions
ConditionsYield
With lithium aluminium tetrahydride; diethyl ether Erwaermen des Reaktionsprodukts mit Thionylchlorid;
Pyridine-2,3-dicarboxylic acid
89-00-9

Pyridine-2,3-dicarboxylic acid

2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 72 percent / conc. H2SO4 / 20 h / Heating
2: 85 percent / NaBH4 / ethanol / 17 h / Heating
3: 26 percent / SOCl2 / CH2Cl2 / 1 h / 75 °C
View Scheme
Multi-step reaction with 3 steps
1: sulfuric acid
2: sodium tetrahydroborate; hydrogenchloride / ethanol
3: thionyl chloride / toluene
View Scheme
Multi-step reaction with 3 steps
1: thionyl chloride / Heating / reflux
2: sodium tetrahydroborate / ethanol; water / 20 °C
3: thionyl chloride / dichloromethane / Heating / reflux
View Scheme
dimethyl 2,3-pyridinedicarboxylate
605-38-9

dimethyl 2,3-pyridinedicarboxylate

2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 85 percent / NaBH4 / ethanol / 17 h / Heating
2: 26 percent / SOCl2 / CH2Cl2 / 1 h / 75 °C
View Scheme
Multi-step reaction with 2 steps
1: sodium tetrahydroborate; hydrogenchloride / ethanol
2: thionyl chloride / toluene
View Scheme
Multi-step reaction with 2 steps
1: sodium tetrahydroborate / ethanol; water / 20 °C
2: thionyl chloride / dichloromethane / Heating / reflux
View Scheme
Multi-step reaction with 2 steps
1: sodium tetrahydroborate / ethanol / 80 °C / Cooling with ice
2: thionyl chloride / dichloromethane / 45 °C / Cooling with ice
View Scheme
2,3-Lutidine
583-61-9

2,3-Lutidine

2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

2,3-bis(chloromethyl)pyridine hydrochloride
27221-49-4

2,3-bis(chloromethyl)pyridine hydrochloride

2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

Conditions
ConditionsYield
With sodium carbonate In dichloromethane; water pH=7.5 - 8;
2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

trimethylsilyl cyanide
7677-24-9

trimethylsilyl cyanide

C9H7N3

C9H7N3

Conditions
ConditionsYield
Stage #1: trimethylsilyl cyanide With cesium fluoride In acetonitrile at 10 - 20℃; for 0.5h;
Stage #2: 2,3-bis(chloromethyl)-pyridine In acetonitrile at 10 - 40℃; for 12h; Temperature; Reagent/catalyst;
98.6%
2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

sodium p-toluenesulfonamide
18522-92-4

sodium p-toluenesulfonamide

6-(toluene-4-sulfonyl)-6,7-dihydro-5H-pyrrolo[3,4-b]pyridine
204593-50-0

6-(toluene-4-sulfonyl)-6,7-dihydro-5H-pyrrolo[3,4-b]pyridine

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 70 - 80℃; for 2.5h;80.5%
2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

N-(((1S,9aS)-7-amino-3-oxo-1,3,9,9a-tetrahydrooxazolo[3,4-a]indol-1-yl)methyl)acetamide
1056039-93-0

N-(((1S,9aS)-7-amino-3-oxo-1,3,9,9a-tetrahydrooxazolo[3,4-a]indol-1-yl)methyl)acetamide

N-(((1S,9aS)-3-oxo-7-(5H-pyrrolo[3,4-b]pyridin-6(7H)-yl)-1,3,9,9a-tetrahydrooxazolo[3,4-a]indol-1-yl)methyl)acetamide
1056035-14-3

N-(((1S,9aS)-3-oxo-7-(5H-pyrrolo[3,4-b]pyridin-6(7H)-yl)-1,3,9,9a-tetrahydrooxazolo[3,4-a]indol-1-yl)methyl)acetamide

Conditions
ConditionsYield
With potassium carbonate; potassium iodide In N,N-dimethyl-formamide at 80 - 90℃;80%
2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

(S)-2-(6-methoxynaphthalen-2-yl)propanamide
72337-56-5, 123675-40-1, 134282-71-6, 134356-42-6

(S)-2-(6-methoxynaphthalen-2-yl)propanamide

2-(6-methoxynaphthalen-2-yl)-1-(5H-pyrrolo[3,4-b]pyridin-6(7H)-yl)propan-1-one
1558014-41-7

2-(6-methoxynaphthalen-2-yl)-1-(5H-pyrrolo[3,4-b]pyridin-6(7H)-yl)propan-1-one

Conditions
ConditionsYield
With sodium hydride In toluene at 80 - 90℃; for 5h;70%
2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

6,7-dihydro-5H-pyrrolo[3,4-b]pyridine
147739-88-6

6,7-dihydro-5H-pyrrolo[3,4-b]pyridine

Conditions
ConditionsYield
With methyl 2-(aminosulfonyl)benzoate; sodium hydride In N,N-dimethyl-formamide46%
2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

4-fluorobenzoyl chloride
403-43-0

4-fluorobenzoyl chloride

4-amino-N-(dimethylethyl)benzenesulfonamide
209917-48-6

4-amino-N-(dimethylethyl)benzenesulfonamide

2-acetylaminomalonic acid diethyl ester
1068-90-2

2-acetylaminomalonic acid diethyl ester

A

N-(4-(N-tert-butylsulfamoyl)phenyl)-7-(4-fluorobenzoyl)-5,6,7,8-tetrahydro-1,7-naphthyridine-6-carboxamide

N-(4-(N-tert-butylsulfamoyl)phenyl)-7-(4-fluorobenzoyl)-5,6,7,8-tetrahydro-1,7-naphthyridine-6-carboxamide

B

N-(4-(N-tert-butylsulfamoyl)phenyl)-6-(4-fluorobenzoyl)-5,6,7,8-tetrahydro-1,6-naphthyridine-7-carboxamide

N-(4-(N-tert-butylsulfamoyl)phenyl)-6-(4-fluorobenzoyl)-5,6,7,8-tetrahydro-1,6-naphthyridine-7-carboxamide

Conditions
ConditionsYield
Stage #1: 2,3-bis(chloromethyl)-pyridine; 2-acetylaminomalonic acid diethyl ester With sodium hydride In N,N-dimethyl-formamide; mineral oil at 20℃; for 6.5h;
Stage #2: With hydrogenchloride In water for 3h; Reflux;
Stage #3: 4-fluorobenzoyl chloride; 4-amino-N-(dimethylethyl)benzenesulfonamide Further stages;
A 24 mg
B 16%
2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

2,3-Lutidine
583-61-9

2,3-Lutidine

Conditions
ConditionsYield
With methanol; palladium on activated charcoal; Lindlar's catalyst Hydrogenation;
Tetraisopropyl methylenediphosphonate
1660-95-3

Tetraisopropyl methylenediphosphonate

2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

[6-(Diisopropoxy-phosphoryl)-6,7-dihydro-5H-[1]pyrindin-6-yl]-phosphonic acid diisopropyl ester
104884-10-8

[6-(Diisopropoxy-phosphoryl)-6,7-dihydro-5H-[1]pyrindin-6-yl]-phosphonic acid diisopropyl ester

Conditions
ConditionsYield
With sodium hydride 1.) DMSO, RT, 1 h 2.) 80 deg C, 1 h; Multistep reaction;
2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

Tetraethyl methylenediphosphonate
1660-94-2

Tetraethyl methylenediphosphonate

[6-(Diethoxy-phosphoryl)-6,7-dihydro-5H-[1]pyrindin-6-yl]-phosphonic acid diethyl ester

[6-(Diethoxy-phosphoryl)-6,7-dihydro-5H-[1]pyrindin-6-yl]-phosphonic acid diethyl ester

Conditions
ConditionsYield
With sodium hydride 1.) DMSO, RT, 1 h 2.) 80 deg C, 1 h; Multistep reaction;
methanol
67-56-1

methanol

2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

4-methoxy-phenyl-sulphonyl chloride
98-68-0

4-methoxy-phenyl-sulphonyl chloride

2-acetylaminomalonic acid diethyl ester
1068-90-2

2-acetylaminomalonic acid diethyl ester

A

methyl (+/-)-7-(4-methoxybenzenesulfonyl)-5,6,7,8-tetrahydro[1,7]naphthylidine-6-carboxylate

methyl (+/-)-7-(4-methoxybenzenesulfonyl)-5,6,7,8-tetrahydro[1,7]naphthylidine-6-carboxylate

B

methyl (+/-)-6-(4-methoxybenzenesulfonyl)-5,6,7,8-tetrahydro[1,6]naphthylidine-7-carboxylate
523993-95-5

methyl (+/-)-6-(4-methoxybenzenesulfonyl)-5,6,7,8-tetrahydro[1,6]naphthylidine-7-carboxylate

Conditions
ConditionsYield
Multistep reaction;A 200 mg
B 1.00 g
methanol
67-56-1

methanol

2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

2-acetylaminomalonic acid diethyl ester
1068-90-2

2-acetylaminomalonic acid diethyl ester

A

methyl (+/-)-5,6,7,8-tetrahydro[1,6]naphthylidine-7-carboxylate dihydrochloride

methyl (+/-)-5,6,7,8-tetrahydro[1,6]naphthylidine-7-carboxylate dihydrochloride

B

methyl (+/-)-5,6,7,8-tetrahydro[1,7]naphthylidine-6-carboxylate dihydrochloride

methyl (+/-)-5,6,7,8-tetrahydro[1,7]naphthylidine-6-carboxylate dihydrochloride

Conditions
ConditionsYield
Stage #1: 2,3-bis(chloromethyl)-pyridine; 2-acetylaminomalonic acid diethyl ester With sodium hydride In N,N-dimethyl-formamide at 20℃; for 14.5h;
Stage #2: With hydrogenchloride for 3h; Heating;
Stage #3: methanol With thionyl chloride for 20h; Heating; Title compound not separated from byproducts;
2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

2-acetylaminomalonic acid diethyl ester
1068-90-2

2-acetylaminomalonic acid diethyl ester

A

ethyl 6-acetyl-7-ethoxycarbonyl-5,6,7,8-tetrahydro[1,6]naphthylidine-7-carboxylate

ethyl 6-acetyl-7-ethoxycarbonyl-5,6,7,8-tetrahydro[1,6]naphthylidine-7-carboxylate

B

ethyl 7-acetyl-6-ethoxycarbonyl-5,6,7,8-tetrahydro[1,7]naphthylidine-6-carboxylate

ethyl 7-acetyl-6-ethoxycarbonyl-5,6,7,8-tetrahydro[1,7]naphthylidine-6-carboxylate

Conditions
ConditionsYield
With sodium hydride In N,N-dimethyl-formamide at 20℃; for 14.5h; Title compound not separated from byproducts;
With sodium hydride In N,N-dimethyl-formamide; mineral oil at 20℃; for 6.5h;
2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

2-acetylaminomalonic acid diethyl ester
1068-90-2

2-acetylaminomalonic acid diethyl ester

A

(+/-)-5,6,7,8-tetrahydro[1,7]naphthylidine-6-carboxylic acid dihydrochloride

(+/-)-5,6,7,8-tetrahydro[1,7]naphthylidine-6-carboxylic acid dihydrochloride

B

(+/-)-5,6,7,8-tetrahydro[1,6]naphthylidine-7-carboxylic acid dihydrochloride

(+/-)-5,6,7,8-tetrahydro[1,6]naphthylidine-7-carboxylic acid dihydrochloride

Conditions
ConditionsYield
Stage #1: 2,3-bis(chloromethyl)-pyridine; 2-acetylaminomalonic acid diethyl ester With sodium hydride In N,N-dimethyl-formamide at 20℃; for 14.5h;
Stage #2: With hydrogenchloride for 3h; Heating; Title compound not separated from byproducts;
2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

(+/-)-6-(4-methoxybenzenesulfonyl)-5,6,7,8-tetrahydro[1,6]naphthylidine-7-carboxylic acid

(+/-)-6-(4-methoxybenzenesulfonyl)-5,6,7,8-tetrahydro[1,6]naphthylidine-7-carboxylic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: aq. NaOH / dioxane / 25 h / 20 °C
View Scheme
2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

6,7-dihydro-5H-1-pyrindine-6,6-bisphosphonic acid
104884-01-7

6,7-dihydro-5H-1-pyrindine-6,6-bisphosphonic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 1.) NaH / 1.) DMSO, RT, 1 h 2.) 80 deg C, 1 h
2: 6N HCl / 2 h / Heating
View Scheme
Multi-step reaction with 2 steps
1: 1.) NaH / 1.) DMSO, RT, 1 h 2.) 80 deg C, 1 h
2: 6N HCl / 2 h / Heating
View Scheme
2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

diethyl malonate
105-53-3

diethyl malonate

diethyl 5,7‑dihydro‑6H‑cyclopenta[b]pyridine‑6,6‑dicarboxylate
220001-81-0

diethyl 5,7‑dihydro‑6H‑cyclopenta[b]pyridine‑6,6‑dicarboxylate

Conditions
ConditionsYield
With sodium In ethanol for 5.08333h; Heating / reflux;
2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

aspirin
50-78-2

aspirin

2-acetyloxybenzoic acid 3-(nitrooxymethyl)-2-methylpyridinyl ester hydrochloride

2-acetyloxybenzoic acid 3-(nitrooxymethyl)-2-methylpyridinyl ester hydrochloride

2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

6,7-dihydro-5H-pyrrolo[3,4-b]pyridine dihydrobromide

6,7-dihydro-5H-pyrrolo[3,4-b]pyridine dihydrobromide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: methyl 2-(aminosulfonyl)benzoate; sodium hydride / N,N-dimethyl-formamide
2: acetic acid; hydrogen bromide
View Scheme
2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

(4-difluoromethoxy-3-pyridin-2-ylethynyl-phenyl)-(5,7-dihydro-pyrrolo[3,4-b]pyridin-6-yl)-methanone
1253291-12-1

(4-difluoromethoxy-3-pyridin-2-ylethynyl-phenyl)-(5,7-dihydro-pyrrolo[3,4-b]pyridin-6-yl)-methanone

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: methyl 2-(aminosulfonyl)benzoate; sodium hydride / N,N-dimethyl-formamide
2.1: acetic acid; hydrogen bromide
3.1: 1-methyl-pyrrolidin-2-one; N-ethyl-N,N-diisopropylamine; 1,1'-carbonyldiimidazole / 1 h / 25 °C / Large scale
3.2: 4 h / 25 - 35 °C / Large scale
View Scheme
2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

C23H25NO6S2

C23H25NO6S2

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: cesium fluoride / acetonitrile / 0.5 h / 10 - 20 °C
1.2: 12 h / 10 - 40 °C
2.1: thionyl chloride / 12 h / 40 °C
3.1: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / -20 - 10 °C
4.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 2 h / 0 - 10 °C
View Scheme
2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

C21H21NO6S2

C21H21NO6S2

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: cesium fluoride / acetonitrile / 0.5 h / 10 - 20 °C
1.2: 12 h / 10 - 40 °C
2.1: thionyl chloride / 12 h / 40 °C
3.1: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / -20 - 10 °C
4.1: sodium carbonate / dichloromethane / 2 h / 0 - 30 °C
View Scheme
2,3-bis(chloromethyl)-pyridine
45754-12-9

2,3-bis(chloromethyl)-pyridine

C11H13NO4

C11H13NO4

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: cesium fluoride / acetonitrile / 0.5 h / 10 - 20 °C
1.2: 12 h / 10 - 40 °C
2.1: thionyl chloride / 12 h / 40 °C
View Scheme

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