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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

7-Chloroquinazolin-4(3H)-one

Cas:31374-18-2

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

ANQING CHICO PHARMACEUTICAL CO.,LTD.

High quality. Factory supply. In stock. Best price. 1.Quick response within 24 hours; 2.Best quality in your requirement; 3.We pay more attention on delivery time, and usually ship on time; 4.Under the premise of safety and effectiveness, we can pr

CAS:31374-18-2/High quality/Factory supply

Cas:31374-18-2

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

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Jinan Finer Chemical Co., Ltd

Product Description Product website: http://www.finerchem.com/pro01en/id/982.html Product Name 7-Chloroquinazolin-4(3H)-one CAS No. 31374-18

7-Chloroquinazolin-4(3H)-one

Cas:31374-18-2

Min.Order:1 Gram

FOB Price: $34.0

Type:Lab/Research institutions

inquiry

Henan Tianfu Chemical Co., Ltd.

Our company engages in Sodium Tripolyphosphate (STPP) and Sodium Hexametabphosphate (SHMP) production; development of noble metal catalysts, synthesis of electronic chemical materials and general chemicals Imp&Exp trading business. The company

TIANFU-CHEM - 7-CHLORO-4-QUINAZOLINOL

Cas:31374-18-2

Min.Order:1 Kilogram

Negotiable

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 31374-18-2 with competitive price

Cas:31374-18-2

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Qingdao Beluga Import and Export Co., LTD

7-CHLORO-4-QUINAZOLINOL CAS:31374-18-2 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 organic i

7-CHLORO-4-QUINAZOLINOL CAS:31374-18-2

Cas:31374-18-2

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

4(3H)-Quinazolinone,7-chloro-

Cas:31374-18-2

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

CAS NO.:31374-18-2

Cas:31374-18-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Baoji Guokang Healthchem co.,ltd

Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At present

7-Chloro-4-hydroxyquinazoline

Cas:31374-18-2

Min.Order:1 Gram

FOB Price: $37.0

Type:Trading Company

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

7-CHOROQUINAZOLIN-4(3H)-ONE

Cas:31374-18-2

Min.Order:1 Gram

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(3H)-Quinazolinone,7-chloro-

Cas:31374-18-2

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 Purity 7-chloro-1H-quinazolin-4-one

Cas:31374-18-2

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Hunan chemfish Pharmaceutical co.,Ltd

Hunan chemfish Pharmaceutical co.,Ltd.located in Lugu High-tech industral park ,Hunan province . with its own R&D center and more than 10000㎡manufacture plant . Chemfish owns 40 reactors from 1000L to 8000L. With complete auxiliary equipment as

7-Chloro-4-hydroxyquinazoline

Cas:31374-18-2

Min.Order:0 Metric Ton

Negotiable

Type:Manufacturers

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

7-CHLORO-4-QUINAZOLINOL

Cas:31374-18-2

Min.Order:0

Negotiable

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

7-CHLORO-4-QUINAZOLINOL Cas no.31374-18-2 98%

Cas:31374-18-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

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

7-Chloroquinazolin-4(3H)-one

Cas:31374-18-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Kono Chem Co.,Ltd

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou

7-chloroquinazolin-4(1H)-one

Cas:31374-18-2

Min.Order:0

Negotiable

Type:Other

inquiry

Shanghai Acmec Biochemical Technology Co., Ltd.

Acmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea

Acmec 7-chloroquinazolin-4-ol 100g

Cas:31374-18-2

Min.Order:1 bottle

Negotiable

Type:Lab/Research institutions

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

7-Chloroquinazolin-4(1H)-one

Cas:31374-18-2

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Xian Changyue Biological Technology Co., Ltd.

best seller Application:API

7-CHLORO-4-QUINAZOLINOL

Cas:31374-18-2

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

4(3H)-Quinazolinone,7-chloro-

Cas:31374-18-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Ocean Chemical Co., Ltd.

★.Best quality according to requirement ★.Competitive price in China market ★.Mature Technical support ★.Professional logistic support

7-Chloro-3H-quinazolin-4-one

Cas:31374-18-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

HANGZHOU TIANYE CHEMICALS CO., LTD.

We product this chemical more than 10 years . We are very experience to export it to many countries, Our superior & stable quality , competitive price gain warm reception from our customers. Application:Chemical intermediate

7-chloro-1H-quinazolin-4-one

Cas:31374-18-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Wuhan Circle Star Chem-medical Technology co.,Ltd.

good quality, competitive price, thoughtful after sale serviceAppearance:white powder Storage:Keep it in dry,shady and cool place Package:25kg,50kg,180kg,200kg,250kg,1000kg,customization Application:Pharma;Industry;Agricultural;chemical reaserch Tran

7-Chloro-4-hydroxyquinazoline

Cas:31374-18-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

DB BIOTECH CO., LTD

best seller Application:API

7-CHLORO-4-QUINAZOLINOL

Cas:31374-18-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hangzhou Fandachem Co.,Ltd

7-Chloroquinazolin-4(3H)-one cas 31374-18-2Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express

7-Chloroquinazolin-4(3H)-one cas 31374-18-2

Cas:31374-18-2

Min.Order:0

Negotiable

Type:Other

inquiry

Henan Kanbei Chemical Co.,LTD

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

7-CHLORO-4-QUINAZOLINOL

Cas:31374-18-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Sartort Biopharma Co., Ltd

Best quality with low price Storage:ln stock Package:25kg/Barrel Application:Chemicals Transportation:Express/Sea/Air Port:Shanghai

7-Chloro-4-hydroxyquinazoline

Cas:31374-18-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

SAGECHEM LIMITED

31374-18-2 Application:intermediate

4(3H)-Quinazolinone, 7-chloro-

Cas:31374-18-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hunan Russell Chemicals Technology Co.,Ltd

low price and high purityAppearance:solid or liquid Storage:in sealed air resistant place Package:As customer require Application:Pharma;Industry;Agricultural Transportation:by sea or by airplane Port:any port in China

7-Chloro-4-hydroxyquinazoline, 97% 31374-18-2

Cas:31374-18-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Synthetic route

2-Amino-4-chlorobenzoic acid
89-77-0

2-Amino-4-chlorobenzoic acid

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
With acetic acid; diethylamine at 150℃; for 2h; Product distribution / selectivity;96.1%
With montmorillonite K-10 for 0.0666667h; microwave irradiation;94%
at 130 - 160℃; for 5h;90.7%
formamidine acetic acid
3473-63-0

formamidine acetic acid

2-Amino-4-chlorobenzoic acid
89-77-0

2-Amino-4-chlorobenzoic acid

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
In water Microwave irradiation;95%
In 2-methoxy-ethanol at 120℃; for 16h;88.1%
In 2-methoxy-ethanol Reflux;
In 2-methoxy-ethanol for 18h; Reflux;
In 2-methoxy-ethanol at 130℃;
methanol
67-56-1

methanol

2-amino-4-chlorobenzonitrile
38487-86-4

2-amino-4-chlorobenzonitrile

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
With cobalt(II) nitrate hexahydrate; tris(2-diphenylphosphinoethyl)phosphine; water; caesium carbonate at 150℃; for 36h; Inert atmosphere; Sealed tube;92%
formamidinium acetate
64392-62-7

formamidinium acetate

2-Amino-4-chlorobenzoic acid
89-77-0

2-Amino-4-chlorobenzoic acid

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
In 2-methoxy-ethanol for 1.5h; Heating;89%
7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
at 130 - 190℃; for 4.5h;87.7%
6-amino-7-methoxy-4-(3'-methylanilino)quinazoline
153437-17-3

6-amino-7-methoxy-4-(3'-methylanilino)quinazoline

ethoxyethoxyethanol
111-90-0

ethoxyethoxyethanol

2-Amino-4-chlorobenzoic acid
89-77-0

2-Amino-4-chlorobenzoic acid

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
With formamide85%
methanol
67-56-1

methanol

2-amino-4-chlorobenzamide
5900-59-4

2-amino-4-chlorobenzamide

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
With copper(l) iodide; oxygen; caesium carbonate at 20℃; for 16h; Irradiation;85%
With [Cp*Ir(2,2′-bpyO)(H2O)]; caesium carbonate at 130℃; for 2h; Microwave irradiation; Green chemistry;70%
With [Cp*Ir(2,2'-bpyO)(H2O)]; caesium carbonate at 130℃; for 2h; Inert atmosphere; Microwave irradiation;70%
With oxygen; copper(II) acetate monohydrate; caesium carbonate at 110℃; for 6h;68%
2-amino-4-chloro-benzoic acid methyl ester
5900-58-3

2-amino-4-chloro-benzoic acid methyl ester

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
With acetic acid; diethylamine at 150℃; for 2h; Product distribution / selectivity;84.1%
With formic acid at 145℃; for 12h;81%
Niementowski Quinazolone Synthesis;
for 10h; Reflux;
2-amino-4-chlorobenzamide
5900-59-4

2-amino-4-chlorobenzamide

oxalic acid
144-62-7

oxalic acid

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
In 1,4-dioxane at 120℃; for 14h; Green chemistry;83%
formamidine hydrochloride
6313-33-3

formamidine hydrochloride

2-Amino-4-chlorobenzoic acid
89-77-0

2-Amino-4-chlorobenzoic acid

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
at 210℃; for 0.25h; Cycloaddition;81%
2-amino-4-chlorobenzamide
5900-59-4

2-amino-4-chlorobenzamide

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
With hydrogenchloride In water; trimethyl orthoformate77%
4-chloro-2-iodobenzamide
942319-20-2

4-chloro-2-iodobenzamide

formamidine
463-52-5

formamidine

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
With copper(l) iodide; potassium carbonate In N,N-dimethyl-formamide at 80℃; for 6h; Inert atmosphere;71%
5-chloro-2-nitrobenzoic acid
2516-95-2

5-chloro-2-nitrobenzoic acid

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
With zinc for 0.108333h; microwave irradiation;70%
C24H24Cl2N2O6

C24H24Cl2N2O6

A

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

B

C24H22Cl2N4O2

C24H22Cl2N4O2

Conditions
ConditionsYield
at 186℃;A 16.2%
B 51.5%
C23H22Cl2N2O6

C23H22Cl2N2O6

A

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

C23H20Cl2N4O2

C23H20Cl2N4O2

Conditions
ConditionsYield
at 180 - 185℃; for 2h;A 19.9%
B 47.5%
2-amino-4-chlorobenzonitrile
38487-86-4

2-amino-4-chlorobenzonitrile

N,N-dimethyl-formamide
68-12-2, 33513-42-7

N,N-dimethyl-formamide

A

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

B

7-chloroquinazoline-2,4-dione
13165-35-0

7-chloroquinazoline-2,4-dione

Conditions
ConditionsYield
With zinc(II) chloride at 200℃; for 5h; sealed tube;A 35%
B 36%
2-amino-4-chlorobenzamide
5900-59-4

2-amino-4-chlorobenzamide

orthoformic acid triethyl ester
122-51-0

orthoformic acid triethyl ester

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
With diethylene glycol at 120℃;
2-amino-4-chlorobenzamide
5900-59-4

2-amino-4-chlorobenzamide

trimethyl orthoformate
149-73-5

trimethyl orthoformate

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
With hydrogenchloride
2-Amino-4-chlorobenzoic acid
89-77-0

2-Amino-4-chlorobenzoic acid

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 86 percent / Et3N / dioxane / 2 h / 20 °C
2: 16.2 percent / 186 °C
View Scheme
Multi-step reaction with 2 steps
1: 74.4 percent / Et3N / dioxane / 3 h / 20 °C
2: 19.9 percent / 2 h / 180 - 185 °C
View Scheme
With formamide for 5h; Heating / reflux;
Multi-step reaction with 2 steps
1: sulfuric acid / 9 h / Cooling with ice; Reflux
2: formic acid / 12 h / 145 °C
View Scheme
Multi-step reaction with 2 steps
1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; benzotriazol-1-ol; ammonium chloride; N-ethyl-N,N-diisopropylamine / dimethyl sulfoxide / 15 h / 20 °C
2: copper(l) iodide; caesium carbonate; oxygen / 16 h / 20 °C / Irradiation
View Scheme
1,4-dioxane
123-91-1

1,4-dioxane

2-amino-4-chlorobenzamide
5900-59-4

2-amino-4-chlorobenzamide

orthoformic acid triethyl ester
122-51-0

orthoformic acid triethyl ester

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
In 1-methyl-pyrrolidin-2-one
4-chloro-2-nitro-benzoic acid
6280-88-2

4-chloro-2-nitro-benzoic acid

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: ammonium formate; 5%-palladium/activated carbon / ethanol / 6 h / Reflux
2: 4 h / Reflux
View Scheme
para-chlorobenzoic acid
74-11-3

para-chlorobenzoic acid

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: nitric acid / water / 6 h / 60 °C / Cooling with ice
2: ammonium formate; 5%-palladium/activated carbon / ethanol / 6 h / Reflux
3: 4 h / Reflux
View Scheme
orthoformic acid triethyl ester
122-51-0

orthoformic acid triethyl ester

2-Amino-4-chlorobenzoic acid
89-77-0

2-Amino-4-chlorobenzoic acid

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
at 100℃; for 17h;
With ammonium acetate In ethanol at 110℃; for 0.333333h; Microwave irradiation;
2-Amino-4-chlorobenzoic acid
89-77-0

2-Amino-4-chlorobenzoic acid

formamidine
463-52-5

formamidine

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

Conditions
ConditionsYield
In 2-methoxy-ethanol at 130℃;
7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

4-bromoethylbutanoate
2969-81-5

4-bromoethylbutanoate

4-(7-chloro-4-oxo-4H-quinazolin-3-yl)-butyric acid ethyl ester

4-(7-chloro-4-oxo-4H-quinazolin-3-yl)-butyric acid ethyl ester

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 70℃; for 10h; Alkylation;97%
7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

methyl 1-phenylprop-2-enyl carbonate
160879-62-9

methyl 1-phenylprop-2-enyl carbonate

7-chloro-3-((S)-1-phenylallyl)quinazolin-4(3H)-one

7-chloro-3-((S)-1-phenylallyl)quinazolin-4(3H)-one

Conditions
ConditionsYield
With chloro(1,5-cyclooctadiene)rhodium(I) dimer; (R)-(+)-(6,6'-dimethoxybiphenyl-2,2'-diyl)bis[bis(3,5-di-tert-butylphenyl)phosphine] In 1,2-dichloro-ethane at 80℃; for 24h; Schlenk technique; Inert atmosphere; enantioselective reaction;96%
7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

benzylamine
100-46-9

benzylamine

N-benzyl-7-chloroquinazolin-4-amine
477861-82-8

N-benzyl-7-chloroquinazolin-4-amine

Conditions
ConditionsYield
With ammonium sulfate; 1,1,1,3,3,3-hexamethyl-disilazane at 125℃; for 2h;95%
7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

4,7-dichloroquinazoline
2148-57-4

4,7-dichloroquinazoline

Conditions
ConditionsYield
With trichlorophosphate at 100℃; for 3h;94.828%
With oxalyl dichloride In chloroform; N,N-dimethyl-formamide at 20 - 60℃;80%
With oxalyl dichloride In chloroform; N,N-dimethyl-formamide at 60℃; Cooling with ice;80%
7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

4-cyclohexyl-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylic acid diethyl ester
1539-59-9

4-cyclohexyl-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylic acid diethyl ester

7-chloro-2-cyclohexylquinazolin-4(3H)-one

7-chloro-2-cyclohexylquinazolin-4(3H)-one

Conditions
ConditionsYield
Stage #1: 7-chloro-3,4-dihydroquinazolin-4-one; 4-cyclohexyl-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylic acid diethyl ester With trifluoroacetic acid In 2,2,2-trifluoroethanol at 20℃; for 4h; Sealed tube; Irradiation; Inert atmosphere;
Stage #2: In 2,2,2-trifluoroethanol at 20℃; for 4h;
93%
Stage #1: 7-chloro-3,4-dihydroquinazolin-4-one; 4-cyclohexyl-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylic acid diethyl ester With trifluoroacetic acid In 2,2,2-trifluoroethanol at 35℃; for 4h; Irradiation; Inert atmosphere; Sealed tube;
Stage #2: In 2,2,2-trifluoroethanol for 4h; Irradiation; Inert atmosphere;
93%
7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

7-chloro-6-nitro-4(3H)-quinazolinone
53449-14-2

7-chloro-6-nitro-4(3H)-quinazolinone

Conditions
ConditionsYield
With sulfuric acid; nitric acid at 50 - 90℃;92.6%
With sulfuric acid; nitric acid at 0 - 90℃; for 3h;72%
With sulfuric acid; nitric acid at 90℃; for 3h; Cooling with ice;71.2%
7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

1-oxa-6-aza-spiro-[2.5]octane-6-caboxylic acid tert-butyl ester
147804-30-6

1-oxa-6-aza-spiro-[2.5]octane-6-caboxylic acid tert-butyl ester

tert-butyl 4-[(7-chloro-4-oxo-3,4-dihydroquinazolin-3-yl)methyl]-4-hydroxypiperidine-1-carboxylate
1426340-66-0

tert-butyl 4-[(7-chloro-4-oxo-3,4-dihydroquinazolin-3-yl)methyl]-4-hydroxypiperidine-1-carboxylate

Conditions
ConditionsYield
With caesium carbonate In N,N-dimethyl-formamide at 80℃;85%
With caesium carbonate In N,N-dimethyl-formamide at 80℃;85%
With potassium carbonate In N,N-dimethyl-formamide at 80℃; for 12h;83.7%
With caesium carbonate In N,N-dimethyl-formamide at 80℃;68%
7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

1-bromomethyl-4-nitro-benzene
100-11-8

1-bromomethyl-4-nitro-benzene

7-chloro-3-(4-nitro-benzyl)-3H-quinazolin-4-one

7-chloro-3-(4-nitro-benzyl)-3H-quinazolin-4-one

Conditions
ConditionsYield
Stage #1: 7-chloro-3,4-dihydroquinazolin-4-one With sodium methylate In methanol for 0.166667h; Metallation;
Stage #2: 1-bromomethyl-4-nitro-benzene In methanol at 20℃; for 0.5h; Condensation;
81.6%
7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

2-bromo-1-phenyl-1-propanone
2114-00-3

2-bromo-1-phenyl-1-propanone

7-chloro-3-(1-methyl-2-oxo-2-phenyl-ethyl)-3H-quinazolin-4-one

7-chloro-3-(1-methyl-2-oxo-2-phenyl-ethyl)-3H-quinazolin-4-one

Conditions
ConditionsYield
Stage #1: 7-chloro-3,4-dihydroquinazolin-4-one With sodium methylate In methanol for 0.166667h; Metallation;
Stage #2: 2-bromo-1-phenyl-1-propanone In methanol at 20℃; for 0.5h; Condensation;
79.4%
7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

2-bromo-4'-fluoroacetophenone
403-29-2

2-bromo-4'-fluoroacetophenone

7-chloro-3-[2-(4-fluoro-phenyl)-2-oxo-ethyl]-3H-quinazolin-4-one

7-chloro-3-[2-(4-fluoro-phenyl)-2-oxo-ethyl]-3H-quinazolin-4-one

Conditions
ConditionsYield
Stage #1: 7-chloro-3,4-dihydroquinazolin-4-one With sodium methylate In methanol for 0.166667h; Metallation;
Stage #2: 2-bromo-4'-fluoroacetophenone In methanol at 20℃; for 0.5h; Condensation;
77.8%
7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

4-bromomethyltrifluoromethylbenzene
402-49-3

4-bromomethyltrifluoromethylbenzene

7-chloro-3-(4-trifluoromethyl-benzyl)-3H-quinazolin-4-one

7-chloro-3-(4-trifluoromethyl-benzyl)-3H-quinazolin-4-one

Conditions
ConditionsYield
Stage #1: 7-chloro-3,4-dihydroquinazolin-4-one With sodium methylate In methanol for 0.166667h; Metallation;
Stage #2: 4-bromomethyltrifluoromethylbenzene In methanol at 20℃; for 0.5h; Condensation;
76.9%
7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

cyclohexane
110-82-7

cyclohexane

7-chloro-2-cyclohexylquinazolin-4(3H)-one

7-chloro-2-cyclohexylquinazolin-4(3H)-one

Conditions
ConditionsYield
With sodium azide; bis-[(trifluoroacetoxy)iodo]benzene In 2,2,2-trifluoroethanol at 20℃; for 3h;76%
7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

α-bromoacetophenone
70-11-1

α-bromoacetophenone

7-chloro-3-(2-oxo-2-phenyl-ethyl)-3H-quinazolin-4-one

7-chloro-3-(2-oxo-2-phenyl-ethyl)-3H-quinazolin-4-one

Conditions
ConditionsYield
Stage #1: 7-chloro-3,4-dihydroquinazolin-4-one With sodium methylate In methanol for 0.166667h; Metallation;
Stage #2: α-bromoacetophenone In methanol at 20℃; for 0.5h; Condensation;
75%
7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

4-Fluorobenzyl bromide
459-46-1

4-Fluorobenzyl bromide

7-chloro-3-(4-fluorophenylmethyl)quinazolin-4(3H)-one

7-chloro-3-(4-fluorophenylmethyl)quinazolin-4(3H)-one

Conditions
ConditionsYield
Stage #1: 7-chloro-3,4-dihydroquinazolin-4-one With sodium methylate In methanol for 0.166667h; Metallation;
Stage #2: 4-Fluorobenzyl bromide In methanol at 20℃; for 0.5h; Condensation;
74.5%
7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

chloroacetone
78-95-5

chloroacetone

7-chloro-3-(2-oxopropyl)quinazolin-4(3H)-one

7-chloro-3-(2-oxopropyl)quinazolin-4(3H)-one

Conditions
ConditionsYield
Stage #1: 7-chloro-3,4-dihydroquinazolin-4-one With sodium hydride In 1-methyl-pyrrolidin-2-one at 20℃; for 0.5h;
Stage #2: chloroacetone In 1-methyl-pyrrolidin-2-one at 20℃; for 0.5h;
74%
4-vinylpyridine
100-43-6

4-vinylpyridine

7-chloro-3,4-dihydroquinazolin-4-one
31374-18-2

7-chloro-3,4-dihydroquinazolin-4-one

7-chloro-3-(2-(pyridin-4-yl)ethyl)quinazolin-4(3H)-one

7-chloro-3-(2-(pyridin-4-yl)ethyl)quinazolin-4(3H)-one

Conditions
ConditionsYield
With scandium tris(trifluoromethanesulfonate) In toluene at 110℃; Inert atmosphere;73%

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