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Ality Chemical Corporation

The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi

Factory Supply 1-Benzyl-4-Ethoxycarbonyl-3-Piperidone Hydrochloride

Cas:52763-21-0

Min.Order:1

Negotiable

Type:Other

inquiry

Enke Pharma-tech Co.,Ltd. (Cangzhou, China )

Cangzhou Enke Pharma Tech Co.,ltd. is located in Cangzhou City, Hebei province ,where is a famous petroleum chemical industry city in China. Enke Pharma a high-tech enterprise ,and we are dedicated to developing and manufacturing new ap

Ethyl N-benzyl-3-oxo-4-piperidine-carboxylate hydrochloride

Cas:52763-21-0

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Manufacturers

inquiry

Dayang Chem (Hangzhou) Co.,Ltd.

Dayangchem's R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. DayangChem can provide different quantities

Ethyl N-benzyl-3-oxo-4-piperidine-carboxylate hydrochloride Manufacturer/High quality/Best price/In stock

Cas:52763-21-0

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

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

3-Oxo-1-benzyl-4-piperidinecarboxylic acid ethyl ester hydrochloride

Cas:52763-21-0

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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 on.O

Ethyl N-benzyl-3-oxo-4-piperidine-carboxylate hydrochloride 52763-21-0

Cas:52763-21-0

Min.Order:1 Metric Ton

FOB Price: $500.0

Type:Lab/Research institutions

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

Pharmaceutical Grade CAS 52763-21-0 with competitive price

Cas:52763-21-0

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

Henan Wentao Chemical Product Co., Ltd.

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 etc. 3) oem/odm available; 4) rea

Ethyl N-benzyl-3-oxo-4-piperidine-carboxylate hydrochlorideCAS NO.:52763-21-0

Cas:52763-21-0

Min.Order:1 Gram

FOB Price: $4.0

Type:Lab/Research institutions

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

4-Piperidinecarboxylicacid, 3-oxo-1-(phenylmethyl)-, ethyl ester, hydrochloride (1:1) 52763-21-0

Cas:52763-21-0

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Minstar Chemical Co., Ltd

Product Name: Ethyl N-benzyl-3-oxo-4-piperidine-carboxylate hydrochloride CAS: 52763-21-0 MF: C15H20ClNO3 MW: 297.78 EINECS: 258-162-5 Mol File: 52763-21-0.mol Ethyl N-benzyl-3-oxo-4-piperidine-carboxylate hydrochloride Structure

Ethyl N-benzyl-3-oxo-4-piperidine-carboxylate hydrochloride

Cas:52763-21-0

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Keyingchem Co.,Ltd

Hangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det

Ethyl N-benzyl-3-oxo-4-piperidinecarboxylate hydrochloride

Cas:52763-21-0

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Afine Chemicals Limited

Company Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments

ETHYL 1-BENZYL-3-OXO-PIPERIDINE-4-CARBOXYLATE HCL

Cas:52763-21-0

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

SHANGHAI T&W PHARMACEUTICAL CO., LTD.

A substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

Cas:52763-21-0

Min.Order:4 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

4-Piperidinecarboxylicacid, 3-oxo-1-(phenylmethyl)-, ethyl ester, hydrochloride (1:1)

Cas:52763-21-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Send Pharmaceutical Technology Co., Ltd.

low price high quality high purity good sevice stock Appearance:white Storage:Preserve In Well-Closed, Light-Resistant and Tight Containers. Store In Cool & Dry Place Package:1g,5g,10g...1kg,5kg...more Application:Pharmaceutical interme

Ethyl N-benzyl-3-oxo-4-piperidine-carboxylate hydrochloride

Cas:52763-21-0

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Lingrui Chemical Co.,Ltd.

Ethyl N-benzyl-3-oxo-4-piperidine-carboxylate hydrochlorideAppearance:White Crystalline Solid Storage:Protected from light, stored hermetically and in a dry place Package:according to customers' requirements Application:Pharmaceutical Transportation:

Ethyl N-benzyl-3-oxo-4-piperidine-carboxylate hydrochloride

Cas:52763-21-0

Min.Order:1 Gram

Negotiable

Type:Other

inquiry

Siwei Development Group Ltd.

Product name: Ethyl N-Benzyl-3-Oxo-4-Piperidine-Carboxylate Hydrochloride CAS No.:52763-21-0 Molecule Formula:C15H20NO3 Molecule Weight:262.32 Purity: 99.0% Package: 25kg/drum Description:White crystalline powder Manufacture Standards

High Quality Ethyl N-Benzyl-3-Oxo-4-Piperidine-Carboxylate Hydrochloride

Cas:52763-21-0

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,

EthylN-benzyl-3-oxo-4-piperidine-carboxylatehydrochloride

Cas:52763-21-0

Min.Order:1 Milligram

Negotiable

Type:Trading Company

inquiry

EAST CHEMSOURCES LIMITED

factory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B

Ethyl N-benzyl-3-oxo-4-piperidinecarboxylate hydrochloride

Cas:52763-21-0

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

Type:Trading Company

inquiry

Hangzhou Huarong Pharm Co., Ltd.

We 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

Ethyl N-benzyl-3-oxo-4-piperidine-carboxylate hydrochloride

Cas:52763-21-0

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shandong Mopai Biotechnology Co., LTD

Shandong Mopai Biotechnology Co., LTD is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemicals. W

Ethyl N-benzyl-3-oxo-4-piperidinecarboxylate hydrochloride

Cas:52763-21-0

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

Ethyl N-benzyl-3-oxo-4-piperidinecarboxylate hydrochloride

Cas:52763-21-0

Min.Order:1 Metric Ton

FOB Price: $1.5

Type:Trading Company

inquiry

Hangzhou Hysen Pharma co.,Ltd.

we are professional Pharmaceutical company. We are specialized in manufacturing and R&D of API & Intermediates, Contract Manufacturing, Contract Research, and International Trading business as well. *We own a R&D center in Hangzho

Ethyl N-benzyl-3-oxo-4-piperidine-carboxylate hydrochloride

Cas:52763-21-0

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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

Ethyl N-benzyl-3-oxo-4-piperidinecarboxylate hydrochloride

Cas:52763-21-0

Min.Order:1 Metric Ton

FOB Price: $1.0

Type:Trading Company

inquiry

Win-Win chemical Co.Ltd

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

Ethyl N-benzyl-3-oxo-4-piperidinecarboxylate hydrochloride cas no. 52763-21-0 98%

Cas:52763-21-0

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

Ethyl N-benzyl-3-oxo-4-piperidine-carboxylate hydrochloride

Cas:52763-21-0

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,or Intermediates,fine chemicals Transportation:air,sea,courier

Ethyl 1-benzyl-3-oxo-4-piperidinecarboxylate hydrochloride

Cas:52763-21-0

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

JINHUA HUAYI CHEMICAL CO., LTD.

Jinhua huayi chemical co., ltd. is dedicated to the development, production and marketing of chemicals. On the basis of equality and mutual benefit, and under the principle of customer first, credit first, quality first, we are ready to join hands

Ethyl 1-Benzyl-3-Oxopiperidine-4-Carboxylate Hydrochloride

Cas:52763-21-0

Min.Order:100 Gram

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

Ethyl N-benzyl-3-oxo-4-piperidine-carboxylate hydrochloride

Cas:52763-21-0

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

Ethyl 1-Benzyl-3-oxo-4-piperidinecarboxylate Hydrochloride

Cas:52763-21-0

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

1-Benzyl-4-Ethoxycarbonyl-3-Piperidone Hydrochloride

Cas:52763-21-0

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Synthetic route

4-[benzyl(ethoxycarbonylmethyl)amino]butyric acid ethyl ester
63876-32-4

4-[benzyl(ethoxycarbonylmethyl)amino]butyric acid ethyl ester

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

Conditions
ConditionsYield
Stage #1: 4-[benzyl(ethoxycarbonylmethyl)amino]butyric acid ethyl ester With sodium ethanolate In toluene at 20 - 85℃; for 3.5h; Large scale;
Stage #2: With hydrogenchloride In water; toluene Large scale;
94%
Stage #1: 4-[benzyl(ethoxycarbonylmethyl)amino]butyric acid ethyl ester With sodium methylate In ethyl acetate for 4h; Reflux; Large scale;
Stage #2: With water; sodium hydroxide pH=7 - 8; Large scale;
Stage #3: With hydrogenchloride pH=1 - 2; Reagent/catalyst; Solvent; Large scale;
8.6 kg
ethyl 1-benzyl-3-oxo-4-piperidinecarboxylate
39514-19-7

ethyl 1-benzyl-3-oxo-4-piperidinecarboxylate

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

Conditions
ConditionsYield
With hydrogenchloride In ethanol at 22℃; for 0.5h; Inert atmosphere; Large scale;76.8%
4-bromoethylbutanoate
2969-81-5

4-bromoethylbutanoate

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: triethylamine / 1,4-dioxane / 22 h / Reflux; Large scale
2.1: sodium ethanolate / toluene / 3.5 h / 20 - 85 °C / Large scale
2.2: Large scale
View Scheme
ethyl 2-(benzylamino)acetate
6436-90-4

ethyl 2-(benzylamino)acetate

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: triethylamine / 1,4-dioxane / 22 h / Reflux; Large scale
2.1: sodium ethanolate / toluene / 3.5 h / 20 - 85 °C / Large scale
2.2: Large scale
View Scheme
ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

ethyl 3-oxopiperidine-4-carboxylate
70637-75-1

ethyl 3-oxopiperidine-4-carboxylate

Conditions
ConditionsYield
In methanol; palladium dihydroxide100%
With hydrogen; palladium dihydroxide In dichloromethane at 20℃; under 3750.3 Torr; for 24h;84%
debenzylation;
di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

ethyl 1-tert-butoxycarbonyl-3-oxopiperidine-4-carboxylate
71233-25-5

ethyl 1-tert-butoxycarbonyl-3-oxopiperidine-4-carboxylate

Conditions
ConditionsYield
With palladium 10% on activated carbon; hydrogen; triethylamine In methanol for 4h; Autoclave;100%
With palladium 10% on activated carbon; hydrogen; sodium carbonate In ethanol at 50℃; under 28502.9 Torr; for 48h; Autoclave;100%
With triethylamine; palladium-carbon In diethyl ether; ethanol94%
di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

1-tert-butyl 4-ethyl 3-oxopiperidine-1,4-dicarboxylate
206111-40-2

1-tert-butyl 4-ethyl 3-oxopiperidine-1,4-dicarboxylate

Conditions
ConditionsYield
With Pd(OH)2/C; hydrogen; triethylamine In ethanol for 20h;100%
formamidine acetic acid
3473-63-0

formamidine acetic acid

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

7-benzyl-5,6,7,8-tetrahydro-3H-pyrido[3,4-d]pyrimidin-4-one
69981-00-6

7-benzyl-5,6,7,8-tetrahydro-3H-pyrido[3,4-d]pyrimidin-4-one

Conditions
ConditionsYield
With sodium ethanolate In ethanol for 2.5h; Inert atmosphere; Reflux; Large scale;100%
guanidine hydrogen carbonate
124-46-9, 20734-13-8, 100224-74-6, 593-85-1

guanidine hydrogen carbonate

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

2-amino-7-benzyl-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4(4aH)-one
62458-92-8

2-amino-7-benzyl-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4(4aH)-one

Conditions
ConditionsYield
With sodium ethanolate for 16h; Heating / reflux;99%
ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

benzyl bromide
100-39-0

benzyl bromide

(SR)-1,4-dibenzyl-3-oxo-piperidine-4-carboxylic acid ethyl ester
312625-46-0

(SR)-1,4-dibenzyl-3-oxo-piperidine-4-carboxylic acid ethyl ester

Conditions
ConditionsYield
Stage #1: ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride With potassium tert-butylate In tetrahydrofuran at 0 - 20℃; Large scale;
Stage #2: benzyl bromide In tetrahydrofuran at 0 - 20℃; Large scale;
99%
With NaH; sodium hydrogencarbonate In water; N,N-dimethyl-formamide
ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

ethyl 3-hydroxypiperidine-4-carboxylate
941571-79-5

ethyl 3-hydroxypiperidine-4-carboxylate

Conditions
ConditionsYield
With palladium 10% on activated carbon; hydrogen; triethylamine In ethanol at 20℃; under 760.051 Torr; for 48h;99%
Multi-step reaction with 2 steps
1: sodium tetrahydroborate / methanol / 3.75 h / 0 - 20 °C
2: hydrogen; 10 wt% Pd(OH)2 on carbon / ethanol / 14 h / 20 °C
View Scheme
ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

cyclopropylcarboxamidine hydrochloride
57297-29-7

cyclopropylcarboxamidine hydrochloride

7-benzyl-2-cyclopropyl-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4(3H)-one

7-benzyl-2-cyclopropyl-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4(3H)-one

Conditions
ConditionsYield
With sodium methylate In methanol at 25℃; for 20h; Inert atmosphere;99%
ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

ethyl 1-benzyl-3-oxo-4-piperidinecarboxylate
39514-19-7

ethyl 1-benzyl-3-oxo-4-piperidinecarboxylate

Conditions
ConditionsYield
With sodium hydrogencarbonate In diethyl ether; water for 1h;96%
With sodium ethanolate In ethanol
With sodium hydrogencarbonate In ethyl acetate for 2h;
With sodium hydrogencarbonate In water; ethyl acetate at 20℃; for 0.5h;0.87 g
guanidine hydrochloride
50-01-1

guanidine hydrochloride

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

2-amino-7-benzyl-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4(4aH)-one
62458-92-8

2-amino-7-benzyl-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4(4aH)-one

Conditions
ConditionsYield
With sodium methylate In methanol at 100℃;96%
ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

ethyl 3-oxopiperidine-4-carboxylate hydrochloride

ethyl 3-oxopiperidine-4-carboxylate hydrochloride

Conditions
ConditionsYield
With 5% Pd(II)/C(eggshell); hydrogen In ethanol at 20℃; under 3750.38 Torr; for 4h;95%
With hydrogenchloride; palladium 10% on activated carbon; hydrogen In ethanol at 40℃; for 8h;91.4%
With hydrogen; palladium 10% on activated carbon In ethanol at 50℃; for 4h;84%
acetamidine hydrochloride
124-42-5

acetamidine hydrochloride

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

7-benzyl-2-methyl-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4(3H)-one
62259-92-1

7-benzyl-2-methyl-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4(3H)-one

Conditions
ConditionsYield
With sodium methylate In methanol at 25℃; for 20h; Inert atmosphere;95%
With sodium ethanolate In ethanol for 16h; Product distribution / selectivity; Heating / reflux;77%
With sodium ethanolate In ethanol; water; acetic acid17.1 g (95%)
Stage #1: acetamidine hydrochloride; ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride With sodium ethanolate In ethanol at 100℃; for 15h;
Stage #2: With hydrogenchloride In water pH=11; Product distribution / selectivity;
ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

ethyl bromoacetate
105-36-2

ethyl bromoacetate

ethyl 1-benzyl-4-(2-ethoxy-2-oxoethyl)-3-oxopiperidine-4-carboxylate

ethyl 1-benzyl-4-(2-ethoxy-2-oxoethyl)-3-oxopiperidine-4-carboxylate

Conditions
ConditionsYield
Stage #1: ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride With potassium tert-butylate In tetrahydrofuran at 6 - 29℃; for 4h; Large scale;
Stage #2: ethyl bromoacetate In tetrahydrofuran at 10 - 20℃; for 29h; Large scale;
94%
di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

1-tert-butyl 3-ethyl 4-oxopiperidine-1,3-dicarboxylate
98977-34-5

1-tert-butyl 3-ethyl 4-oxopiperidine-1,3-dicarboxylate

Conditions
ConditionsYield
With hydrogen; triethylamine; palladium(II) hydroxide/carbon In ethanol under 3102.97 Torr; for 5h;93%
ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

5-amino-3-methylthio-1,2,4-triazole
45534-08-5

5-amino-3-methylthio-1,2,4-triazole

A

8-benzyl-2-methylthio-6,7,8,9-tetrahydropyrido<3,4-d>-1,2,4-triazolo<1,5-a>pyrimidin-5(10H)-one
115549-85-4

8-benzyl-2-methylthio-6,7,8,9-tetrahydropyrido<3,4-d>-1,2,4-triazolo<1,5-a>pyrimidin-5(10H)-one

B

6-benzyl-2-methylthio-5,6,7,8-tetrahydropyrido<4,3-e>-1,2,4-triazolo<1,5-a>pyrimidin-9(10H)-one

6-benzyl-2-methylthio-5,6,7,8-tetrahydropyrido<4,3-e>-1,2,4-triazolo<1,5-a>pyrimidin-9(10H)-one

Conditions
ConditionsYield
In acetic acid for 6.5h; Heating;A 91%
B 2%
ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

1,1-dimethylguanidine dihydrogensulfate
311-77-3

1,1-dimethylguanidine dihydrogensulfate

7-benzyl-2-(dimethylamino)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4(3H)-one

7-benzyl-2-(dimethylamino)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4(3H)-one

Conditions
ConditionsYield
With sodium methylate In methanol at 25℃; for 20h; Inert atmosphere;90%
ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

thiourea
17356-08-0

thiourea

methyl iodide
74-88-4

methyl iodide

7-benzyl-5,6,7,8-tetrahydro-2-(methylthio)pyrido[3,4-d]pyrimidin-4(4aH)-one
871107-81-2

7-benzyl-5,6,7,8-tetrahydro-2-(methylthio)pyrido[3,4-d]pyrimidin-4(4aH)-one

Conditions
ConditionsYield
Stage #1: ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride; thiourea With sodium methylate In methanol at 100℃;
Stage #2: methyl iodide In methanol at 20℃; for 1h;
88%
ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

allyl bromide
106-95-6

allyl bromide

ethyl 1-benzyl-3-oxo-4-(prop-2-en-1-yl)piperidine-4-carboxylate

ethyl 1-benzyl-3-oxo-4-(prop-2-en-1-yl)piperidine-4-carboxylate

Conditions
ConditionsYield
Stage #1: ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride With potassium tert-butylate In tetrahydrofuran at 0 - 20℃; for 1h; Inert atmosphere;
Stage #2: allyl bromide In tetrahydrofuran at 0 - 20℃; Inert atmosphere;
84%
ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

urea
57-13-6

urea

7-benzyl-5,6,7,8-tetrahydropyridine[3,4-d]pyrimidine-2,4-diol
62459-02-3

7-benzyl-5,6,7,8-tetrahydropyridine[3,4-d]pyrimidine-2,4-diol

Conditions
ConditionsYield
With sodium In ethanol at 75℃; for 36h;83.2%
With ethanol; sodium at 75℃; for 36h;83.2%
With ethanol; sodium at 90℃; for 12h;62%
With ethanol; sodium at 80℃; for 20h;62%
With sodium methylate In methanol; ethanol for 4h; Reflux;
ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

6-benzyl-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridin-3-ol
909187-64-0

6-benzyl-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridin-3-ol

Conditions
ConditionsYield
With hydrazine hydrate; triethylamine In ethanol at 80℃; for 1.5h;83%
With hydrazine at 20℃; for 48h;
ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

5-amino-3-methylthio-1,2,4-triazole
45534-08-5

5-amino-3-methylthio-1,2,4-triazole

8-benzyl-2-methylthio-6,7,8,9-tetrahydropyrido[3,4-d][1,2,4]triazolo[1,5-a]pyrimidin-5(10H)-one monohydrochloride

8-benzyl-2-methylthio-6,7,8,9-tetrahydropyrido[3,4-d][1,2,4]triazolo[1,5-a]pyrimidin-5(10H)-one monohydrochloride

Conditions
ConditionsYield
With acetic acid for 8h; Condensation; Heating;81%
ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

urea
57-13-6

urea

7-benzyl-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidine-2,4(1H,3H)-dione
62459-02-3

7-benzyl-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidine-2,4(1H,3H)-dione

Conditions
ConditionsYield
With sodium methylate In ethanol for 17h; Heating / reflux;80%
With sodium methylate In methanol for 18h; Reflux; Inert atmosphere;58.3%
With sodium methylate In methanol at 0℃; for 20h; Reflux; Inert atmosphere;
benzamidine monohydrochloride
1670-14-0

benzamidine monohydrochloride

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

C20H19N3O
62259-93-2

C20H19N3O

Conditions
ConditionsYield
With sodium methylate In methanol; ethanol at 0℃; Heating / reflux;80%
2-methylisothiourea sulphate
14527-26-5, 867-44-7

2-methylisothiourea sulphate

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

7-benzyl-2-(methylthio)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4-ol

7-benzyl-2-(methylthio)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4-ol

Conditions
ConditionsYield
With sodium methylate In methanol at 20℃; for 12h;80%
formamidine acetic acid
3473-63-0

formamidine acetic acid

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

7-benzyl-5,6,7,8-tetrahydro-3H-pyrido[3,4-d]pyrimidin-4-one
62458-96-2

7-benzyl-5,6,7,8-tetrahydro-3H-pyrido[3,4-d]pyrimidin-4-one

Conditions
ConditionsYield
With sodium methylate In methanol at 25℃; for 20h; Inert atmosphere;79%
Stage #1: formamidine acetic acid; ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride With sodium methylate In methanol at 25℃; for 20h;
Stage #2: With acetic acid In methanol; water at 0 - 25℃;
79%
With sodium methylate In methanol at 20℃; for 20h;70%
Stage #1: formamidine acetic acid; ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride With sodium methylate In methanol at 20℃; for 20h;
Stage #2: With acetic acid In methanol; water at 0 - 20℃; for 1h;
70%
ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

7-benzyl-2-(trifluoromethyl)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4-ol
647862-97-3

7-benzyl-2-(trifluoromethyl)-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidin-4-ol

Conditions
ConditionsYield
With sodium ethanolate In ethanol at 20 - 80℃; for 17.25h;78%
With ethanol; sodium at 20 - 80℃; for 17h; Inert atmosphere;78%
With sodium ethanolate In ethanol at 20℃; for 31.25h;
Stage #1: ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride; trifluoroacetamidine With sodium ethanolate at 20℃; for 1.25h;
Stage #2: for 30h; Heating / reflux;
With sodium ethanolate In ethanol for 31.25h; Heating / reflux;
ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

ethyl 2-amino-6-benzyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxylate
911010-88-3

ethyl 2-amino-6-benzyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxylate

Conditions
ConditionsYield
With ammonium acetate In ethanol at 20℃; for 1h;75%
With ammonium acetate In ethanol at 20℃; for 1h;
With ammonium acetate In ethanol at 20℃; for 3h;29.2 g
With ammonium acetate In ethanol at 20℃; for 3h;29.2 g
5-amino-3-morpholino-1H-1,2,4-triazole
51420-46-3

5-amino-3-morpholino-1H-1,2,4-triazole

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride
52763-21-0

ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride

A

8-benzyl-2-morpholino-6,7,8,9-tetrahydropyrido<3,4-d>-1,2,4-triazolo<1,5-a>pyrimidin-5(10H)-one
115549-86-5

8-benzyl-2-morpholino-6,7,8,9-tetrahydropyrido<3,4-d>-1,2,4-triazolo<1,5-a>pyrimidin-5(10H)-one

B

6-benzyl-2-morpholino-5,6,7,8-tetrahydropyrido<4,3-e>-1,2,4-triazolo<1,5-a>pyrimidin-9(10H)-one

6-benzyl-2-morpholino-5,6,7,8-tetrahydropyrido<4,3-e>-1,2,4-triazolo<1,5-a>pyrimidin-9(10H)-one

Conditions
ConditionsYield
In acetic acid for 7h; Heating;A 72%
B 3%

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