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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

2,3-Dihydro-1H-quinolin-4-one Manufacturer/High quality/Best price/In stock

Cas:4295-36-7

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Hebei yanxi chemical co.,LTD.

ProName: Cycloheptane-1,3-Dione CasNo: 1194-18-9 Molecular Formula: C7H10O2 Appearance: Look at the detailed information Application: intermediates DeliveryTime: according to the clients requirement PackAge: according to

1,2,3,4-Tetrahydroquinolin-4-One CAS NO.4295-36-7

Cas:4295-36-7

Min.Order:1 Kilogram

FOB Price: $1.0 / 3.0

Type:Trading Company

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Henan Tianfu Chemical Co., Ltd.

Our company was built in 2009 with an ISO certificate. In the past 5 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 o

TIANFU CHEM 2,3-Dihydro-1H-quinolin-4-one

Cas:4295-36-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Hebei Nengqian Chemical Import and Export Co., LTD

Density: 1.142 ± 0.06 g/cm3 (Predicted) Melting point: 44 ° C Boiling point: 195 ° C (Press: 20 Torr) Flash point: 142.8 ° C Steam pressure: 0.00108mmHg at 25 ° C Solubility in Methanol Refractive index: 1.564 Acidity coefficie

2,3-Dihydro-1H-quinolin-4-one 4295-36-7

Cas:4295-36-7

Min.Order:5 Kilogram

FOB Price: $20.0 / 80.0

Type:Trading Company

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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 4295-36-7 with competitive price

Cas:4295-36-7

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Name 2,3-Dihydro-1H-quinolin-4-one Synonyms 1,2,3,4-Tetrahydroquinolin-4-one Molecular Structure Molecular Formula C9H9NO Molecular Weight 147.17 CAS Regis

2,3-Dihydro-1H-quinolin-4-one

Cas:4295-36-7

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

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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(1H)-Quinolinone,2,3-dihydro- 4295-36-7

Cas:4295-36-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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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(1H)-Quinolinone,2,3-dihydro-

Cas:4295-36-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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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

4(1H)-Quinolinone,2,3-dihydro-

Cas:4295-36-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

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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(1H)-Quinolinone,2,3-dihydro-

Cas:4295-36-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Zibo Dorne chemical technology co. LTD

Product Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,

2,3-Dihydro-1H-quinolin-4-one

Cas:4295-36-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Jiangsu Qianyu Molecular Technology Co., LTD.

Our Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an

Best Offer2,3-Dihydro-1H-quinolin-4-one

Cas:4295-36-7

Min.Order:0

Negotiable

Type:Trading Company

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Shanghai Minstar Chemical Co., Ltd

2,3-Dihydro-1H-quinolin-4-one Basic information Product Name: 2,3-Dihydro-1H-quinolin-4-one Synonyms: 2,3-DIHYDROQUINOLIN-4(1H)-ONE;2,3-DIHYDRO-1H-QUINOLIN-4-ONE;AKOS 93029;4(1H)-QUINOLINONE, 2,3-DIHYDRO-;2,3-DIHYDRO-1H-QUINOLINE-4-ONE;1,2,3,4-

2,3-Dihydro-1H-quinolin-4-one

Cas:4295-36-7

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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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

2,3-Dihydroquinolin-4(1H)-one

Cas:4295-36-7

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

2,3-Dihydro-1H-quinolin-4-one

Cas:4295-36-7

Min.Order:0

Negotiable

Type:Trading Company

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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

4295-36-7 CAS NO.4295-36-7

Cas:4295-36-7

Min.Order:1 Metric Ton

FOB Price: $7.0 / 8.0

Type:Trading Company

inquiry

Hangzhou Zhongqi chem Co.,Ltd.

Located in Hangzhou National Hi-Tech Industrial Development Zone, zhongqichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. Benefiting from the outstanding customer service an

2,3-Dihydro-1H-quinolin-4-one

Cas:4295-36-7

Min.Order:1 Gram

Negotiable

Type:Other

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Wuhu Nuowei Chemistry Technologies Co., Ltd.

Wuhu Nuovo Chemical Technology Co., Ltd. was established in August 2014, mainly engaged in the development, production and sales of ionic liquids, ribose, nucleosides, nucleotides and related chemicals; Products are mainly used in new energy, new ma

2,3-Dihydro-1H-quinolin-4-one

Cas:4295-36-7

Min.Order:100 Gram

Negotiable

Type:Manufacturers

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Golden Pharma Co., Limited

GOLDEN PHARMA CO.,LIMITED.is a professional pharmaceutical company,our team have more than 20years expereince in pharmaceutical production and sales. we are a professional technical enterprise specializing in the R & D, production,QA regulation

2,3-Dihydro-1H-quinolin-4-one

Cas:4295-36-7

Min.Order:1 Kilogram

Negotiable

Type:Other

inquiry

Win-Win chemical Co.Ltd

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

2,3-Dihydro-1H-quinolin-4-one hydrochloride cas no. 4295-36-7 98%

Cas:4295-36-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Kono Chem Co.,Ltd

Appearance:Solid powder Storage:Sealed,light and oxygen resistant Package:Foil bag or drum Application:Applied in dietary supplements,pharmaceutical or cosmeticeuticals Transportation:by sea or air Port:Beijing or Guangzhou Port

2,3-Dihydro-1H-quinolin-4-one

Cas:4295-36-7

Min.Order:0

Negotiable

Type:Other

inquiry

Suzhou Sibian Chemical Technology Co., Ltd

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

2,3-Dihydro-1H-quinolin-4-one

Cas:4295-36-7

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

GIHI CHEMICALS CO.,LIMITED

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

2,3-Dihydro-1H-quinolin-4-one

Cas:4295-36-7

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

1,2,3,4-Tetrahydroquinolin-4-One

Cas:4295-36-7

Min.Order:100 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Dingyan Chem Co., Ltd

high purity, manufacturer Application:Intermediate

2,3-Dihydro-1H-quinolin-4-one

Cas:4295-36-7

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Henan Allgreen Chemical Co.,Ltd

high qualityAppearance:white crystalline powder Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea

(1R)-TRANS-1,2-CYCLOPENTANEDIOL

Cas:4295-36-7

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Xian Changyue Biological Technology Co., Ltd.

best seller Application:API

2,3-Dihydro-1H-quinolin-4-one

Cas:4295-36-7

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Antimex Chemical Limied

Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali

4(1H)-Quinolinone,2,3-dihydro-

Cas:4295-36-7

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

2,3-Dihydroquinolin-4(1H)-one

Cas:4295-36-7

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Chemsigma International Co.,Ltd.

bulk productionChemsigma International Co.,Ltd. is a chemical manufacturer, specialize in custom synthesis and organic chemical manufacturing for overseas customers, in the field of API, pharmaceutical intermediates, chemical intermediates, fine chem

1,2,3,4-tetrahydro-4-quinolinone

Cas:4295-36-7

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

1-phenylazetidin-2-one
5099-95-6

1-phenylazetidin-2-one

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
With trifluorormethanesulfonic acid In dichloromethane at 0 - 18℃; for 1h; Fries rearrangement; Inert atmosphere;98%
With trifluorormethanesulfonic acid In 1,2-dichloro-ethane at 0 - 20℃; for 0.25h;96%
With trifluorormethanesulfonic acid In 1,2-dichloro-ethane at 0 - 20℃; for 0.25h;96%
1-tert-butyloxycarbonyl-1,2,3,4-tetrahydro-4-quinolinone
179898-00-1

1-tert-butyloxycarbonyl-1,2,3,4-tetrahydro-4-quinolinone

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
In acetonitrile at 300℃; under 75007.5 Torr;95%
3-(phenylsulfonyl)-2,3-dihydroquinolin-4(1H)-one

3-(phenylsulfonyl)-2,3-dihydroquinolin-4(1H)-one

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
With 2,2'-azobis(isobutyronitrile); tri-n-butyl-tin hydride In toluene at 130℃; for 3h; Inert atmosphere; Sealed tube;90%
1-tosyl-2,3-dihydroquinolin-4(1H)-one
14278-37-6

1-tosyl-2,3-dihydroquinolin-4(1H)-one

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
With hydrogenchloride; acetic acid for 3.5h; Heating;83%
With hydrogenchloride; water; acetic acid
1-(2-nitrophenyl)-2-propen-1-one
68165-36-6

1-(2-nitrophenyl)-2-propen-1-one

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
Stage #1: 1-(2-nitrophenyl)prop-2-en-1-one With hydrogenchloride at 80 - 85℃; Inert atmosphere;
Stage #2: With iron at 100℃; for 1h; Inert atmosphere;
83%
N-(2-(3-hydroxyprop-1-yn-1-yl)phenyl)-4-methylbenzenesulfonamide
665033-49-8

N-(2-(3-hydroxyprop-1-yn-1-yl)phenyl)-4-methylbenzenesulfonamide

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
With trifluorormethanesulfonic acid; α,α,α-trifluorotoluene for 8h; Meyer-Schuster Rearrangement; Reflux;82%
N-phenyl-β-alanine
5652-38-0

N-phenyl-β-alanine

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
With Acide polyphosphorique at 120 - 130℃; for 1h;70%
With polyphosphoric acid at 50℃; for 3.5h;49%
Stage #1: N-phenyl-β-alanine With Eaton's reagent at 70℃; Friedel Crafts Acylation;
Stage #2: With sodium hydroxide; water at 0℃;
46.3%
ethyl 3-phenylaminopropionate
62750-11-2

ethyl 3-phenylaminopropionate

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
With methanesulfonic acid; phosphorus pentoxide at 130℃; for 5h; Inert atmosphere;68%
Multi-step reaction with 2 steps
1: ethylmagnesium bromide / tetrahydrofuran / 14 h
2: 80 percent / trifluoroacetic acid / 1 h / 100 °C
View Scheme
3-(2-aminophenyl)propyn-1-ol

3-(2-aminophenyl)propyn-1-ol

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
With tin(ll) chloride In water; tert-butyl alcohol for 1h; Reagent/catalyst; Meyer-Schuster Rearrangement; Reflux; Sealed tube;66%
1-acetyl-1,2,3,4-tetrahydroquinolin-4-one
64142-63-8

1-acetyl-1,2,3,4-tetrahydroquinolin-4-one

A

6-Acetyl-2,3-dihydro-4(1H)-quinolinone
146943-76-2

6-Acetyl-2,3-dihydro-4(1H)-quinolinone

B

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
With PPA at 120℃; for 0.166667h;A 11.7%
B 51.2%
With PPA In acetonitrile at 120℃; for 0.5h; Mechanism; Irradiation;A 11.7%
B 51.2%
N-[2-(3-hydroxypropyl-1-ynyl)phenyl]-4-benzamide

N-[2-(3-hydroxypropyl-1-ynyl)phenyl]-4-benzamide

A

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

B

1-benzoyl-2,3-dihydro-1H-quinolin-4-one
99293-89-7

1-benzoyl-2,3-dihydro-1H-quinolin-4-one

Conditions
ConditionsYield
With trifluorormethanesulfonic acid; α,α,α-trifluorotoluene for 6h; Meyer-Schuster Rearrangement; Reflux;A 25%
B 50%
2-(2-(hydroxymethyl)ethynyl)aniline
125812-44-4

2-(2-(hydroxymethyl)ethynyl)aniline

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
With trifluorormethanesulfonic acid; α,α,α-trifluorotoluene for 6h; Meyer-Schuster Rearrangement; Reflux;50%
With toluene-4-sulfonic acid In benzene Reflux; Green chemistry;10%
Multi-step reaction with 2 steps
1: pyridine / dichloromethane / 0 - 20 °C
2: α,α,α-trifluorotoluene; trifluorormethanesulfonic acid / 8 h / Reflux
View Scheme
4-chloro-N-[2-(3-hydroxy-prop-1-ynyl)-phenyl]-benzamide

4-chloro-N-[2-(3-hydroxy-prop-1-ynyl)-phenyl]-benzamide

A

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

B

1-(4-chloro-benzoyl)-2,3-dihydro-1H-quinolin-4-one

1-(4-chloro-benzoyl)-2,3-dihydro-1H-quinolin-4-one

Conditions
ConditionsYield
With trifluorormethanesulfonic acid; α,α,α-trifluorotoluene for 6h; Meyer-Schuster Rearrangement; Reflux;A 25%
B 40%
4-fluoro-N-[2-(3-hydroxy-prop-1-ynyl)-phenyl]-benzamide

4-fluoro-N-[2-(3-hydroxy-prop-1-ynyl)-phenyl]-benzamide

A

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

B

1-(4-fluoro-benzoyl)-2,3-dihydro-1H-quinolin-4-one

1-(4-fluoro-benzoyl)-2,3-dihydro-1H-quinolin-4-one

Conditions
ConditionsYield
With trifluorormethanesulfonic acid; α,α,α-trifluorotoluene for 6h; Meyer-Schuster Rearrangement; Reflux;A 25%
B 35%
ethyl 1-phenyl-1,4,5,6-tetrahydropyridazine-3-carboxylate
137116-93-9

ethyl 1-phenyl-1,4,5,6-tetrahydropyridazine-3-carboxylate

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
With PPA; Polyphosphoric acid (PPA) at 110℃; for 0.25h;19%
4-oxo-1,2,3,4-tetrahydro-quinoline-3-carboxylic acid methyl ester
1136-75-0

4-oxo-1,2,3,4-tetrahydro-quinoline-3-carboxylic acid methyl ester

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
With hydrogenchloride; water
methyl 3-(o-methoxycarbonylanilino)propionate
38113-64-3

methyl 3-(o-methoxycarbonylanilino)propionate

A

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

B

4-oxo-1,2,3,4-tetrahydro-quinoline-3-carboxylic acid methyl ester
1136-75-0

4-oxo-1,2,3,4-tetrahydro-quinoline-3-carboxylic acid methyl ester

Conditions
ConditionsYield
With ethanol; sodium; benzene
With sodium; xylene
1-p-toluenesulfonyl-4-chloro-1.2-dihydro-quinoline

1-p-toluenesulfonyl-4-chloro-1.2-dihydro-quinoline

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
With hydrogenchloride; acetic acid
hydrogenchloride
7647-01-0

hydrogenchloride

N-(p-toluenesulfonyl)-4-chloro-1,2-dihydroquinoline
856089-56-0

N-(p-toluenesulfonyl)-4-chloro-1,2-dihydroquinoline

acetic acid
64-19-7

acetic acid

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

aniline
62-53-3

aniline

Wang resin-bound styrene 4

Wang resin-bound styrene 4

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: toluene / 100 °C
2: polyphosphoric acid / 100 °C
View Scheme
methyl 3-(phenylamino)propanoate
21911-84-2

methyl 3-(phenylamino)propanoate

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: pyridine / 0.33 h / Heating
2: aq. HCl / dioxane / 3 h / Heating
3: 1.) PCl5, 2.) AlCl3 / 1.) benzene, from 5 deg C to 23 deg C, 30 min, 2.) benzene 15-20 deg C, 3.5 h
4: 83 percent / gl. AcOH, aq. HCl / 3.5 h / Heating
View Scheme
Multi-step reaction with 4 steps
1: pyridine
2: aqueous methanol. KOH-solution
3: phosphorus (V)-chloride; benzene / Behandeln des erhaltenen Reaktionsgemisches mit Zinn(IV)-chlorid in Benzol.
4: acetic acid; water; hydrochloric acid
View Scheme
methyl 3-[N-phenyl-N-(p-toluenesulfonyl)amino]propionate
17266-98-7

methyl 3-[N-phenyl-N-(p-toluenesulfonyl)amino]propionate

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: aq. HCl / dioxane / 3 h / Heating
2: 1.) PCl5, 2.) AlCl3 / 1.) benzene, from 5 deg C to 23 deg C, 30 min, 2.) benzene 15-20 deg C, 3.5 h
3: 83 percent / gl. AcOH, aq. HCl / 3.5 h / Heating
View Scheme
Multi-step reaction with 3 steps
1: aqueous methanol. KOH-solution
2: phosphorus (V)-chloride; benzene / Behandeln des erhaltenen Reaktionsgemisches mit Zinn(IV)-chlorid in Benzol.
3: acetic acid; water; hydrochloric acid
View Scheme
N-((4-methylphenyl)sulfonyl)-N-phenyl-beta-alanine
65148-06-3

N-((4-methylphenyl)sulfonyl)-N-phenyl-beta-alanine

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 1.) PCl5, 2.) AlCl3 / 1.) benzene, from 5 deg C to 23 deg C, 30 min, 2.) benzene 15-20 deg C, 3.5 h
2: 83 percent / gl. AcOH, aq. HCl / 3.5 h / Heating
View Scheme
Multi-step reaction with 2 steps
1: phosphorus (V)-chloride; benzene / Behandeln des erhaltenen Reaktionsgemisches mit Zinn(IV)-chlorid in Benzol.
2: acetic acid; water; hydrochloric acid
View Scheme
Multi-step reaction with 2 steps
1: xylene; phosphorus (V)-oxide / 138 °C
2: acetic acid; water; hydrochloric acid
View Scheme
Stage #1: N-((4-methylphenyl)sulfonyl)-N-phenyl-beta-alanine With oxalyl dichloride In tetrahydrofuran; N,N-dimethyl-formamide at 0℃; for 1h;
Stage #2: With aluminum (III) chloride at 0 - 20℃; for 2h; Inert atmosphere;
9.8 g
aniline
62-53-3

aniline

p-toluenesulfonic acid--ester

p-toluenesulfonic acid--ester

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: AcOH / 22 h / Heating
2: pyridine / 0.33 h / Heating
3: aq. HCl / dioxane / 3 h / Heating
4: 1.) PCl5, 2.) AlCl3 / 1.) benzene, from 5 deg C to 23 deg C, 30 min, 2.) benzene 15-20 deg C, 3.5 h
5: 83 percent / gl. AcOH, aq. HCl / 3.5 h / Heating
View Scheme
aniline
62-53-3

aniline

2-halogen-aniline

2-halogen-aniline

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: conc. hydrochloric acid / ethanol / 48 h / Heating
2: ethylmagnesium bromide / tetrahydrofuran / 14 h
3: 80 percent / trifluoroacetic acid / 1 h / 100 °C
View Scheme
ethyl 5-chloro-2-oxopentanoate phenylhydrazone
137116-95-1

ethyl 5-chloro-2-oxopentanoate phenylhydrazone

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 41 percent / K2CO3 / ethanol / 24 h / Heating
2: 19 percent / polyphosphoric acid (PPA) / 0.25 h / 110 °C
View Scheme
aniline
62-53-3

aniline

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: acetic acid
2: pyridine
3: aqueous methanol. KOH-solution
4: phosphorus (V)-chloride; benzene / Behandeln des erhaltenen Reaktionsgemisches mit Zinn(IV)-chlorid in Benzol.
5: acetic acid; water; hydrochloric acid
View Scheme
Multi-step reaction with 3 steps
1: potassium carbonate / dichloromethane / 3 h / 20 °C
2: sodium t-butanolate / N,N-dimethyl-formamide / 2 h / 20 °C
3: trifluorormethanesulfonic acid / 1,2-dichloro-ethane
View Scheme
Multi-step reaction with 2 steps
1: acetic acid / methanol / 61 h / 20 °C / Reflux
2: methanesulfonic acid; phosphorus pentoxide / 5 h / 130 °C / Inert atmosphere
View Scheme
3-bromo-N-phenylpropanamide
7661-07-6

3-bromo-N-phenylpropanamide

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: sodium t-butanolate / N,N-dimethyl-formamide / 2 h / 20 °C
2: trifluorormethanesulfonic acid / 1,2-dichloro-ethane
View Scheme
Multi-step reaction with 2 steps
1: sodium t-butanolate / N,N-dimethyl-formamide / 3 h / 0 - 20 °C
2: trifluorormethanesulfonic acid / 1,2-dichloro-ethane / 0 - 20 °C
View Scheme
Multi-step reaction with 2 steps
1: sodium t-butanolate / N,N-dimethyl-formamide / 3 h / 20 °C
2: trifluorormethanesulfonic acid / 1,2-dichloro-ethane / 2 h / 0 - 20 °C
View Scheme
2-nitro-benzaldehyde
552-89-6

2-nitro-benzaldehyde

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: tetrahydrofuran / 2 h / -78 °C / Inert atmosphere
2.1: Jones reagent / water; acetone / 1 h / 23 °C / Inert atmosphere
3.1: hydrogenchloride / 80 - 85 °C / Inert atmosphere
3.2: 1 h / 100 °C / Inert atmosphere
View Scheme
2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

1-tert-butyloxycarbonyl-1,2,3,4-tetrahydro-4-quinolinone
179898-00-1

1-tert-butyloxycarbonyl-1,2,3,4-tetrahydro-4-quinolinone

Conditions
ConditionsYield
With dmap; N-ethyl-N,N-diisopropylamine In dichloromethane at 60℃; for 16h;100%
Stage #1: 2,3-dihydroquinolin-4(1H)-one; di-tert-butyl dicarbonate In tetrahydrofuran for 16h; Heating / reflux;
Stage #2: With sodium hydroxide In water; ethyl acetate
78%
With dmap; triethylamine In dichloromethane at 20℃; for 2h;74%
2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

(R)-1,2,3,4-tetrahydroquinolin-4-ol

(R)-1,2,3,4-tetrahydroquinolin-4-ol

Conditions
ConditionsYield
With bis(1,5-cyclooctadiene)diiridium(I) dichloride; C49H64FeNOP; hydrogen; sodium t-butanolate In isopropyl alcohol at 25 - 30℃; under 38002.6 Torr; for 12h; Autoclave; enantioselective reaction;99%
2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

thiosemicarbazide
79-19-6

thiosemicarbazide

2,3-dihydro-1H-quinoline-4-one thiosemicarbazone
1431552-20-3

2,3-dihydro-1H-quinoline-4-one thiosemicarbazone

Conditions
ConditionsYield
With toluene-4-sulfonic acid In methanol for 36h; Reflux;97%
2-furancarbonyl chloride
527-69-5

2-furancarbonyl chloride

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

A

furan-2-yl(4-hydroxy-3,4-dihydroquinolin-1(2H)-yl)methanone
367509-07-7

furan-2-yl(4-hydroxy-3,4-dihydroquinolin-1(2H)-yl)methanone

B

1-(2-furoyl)-2,3-dihydro-4(1H)-quinolinone
367509-08-8

1-(2-furoyl)-2,3-dihydro-4(1H)-quinolinone

Conditions
ConditionsYield
A 95%
B n/a
2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

benzyl chloroformate
501-53-1

benzyl chloroformate

1-benzyloxycarbonyl-2,3-dihydro-4-quinolone
934192-22-0

1-benzyloxycarbonyl-2,3-dihydro-4-quinolone

Conditions
ConditionsYield
With potassium carbonate In tetrahydrofuran; water at 0 - 25℃; for 4h;93%
With potassium carbonate In tetrahydrofuran; water at 0 - 25℃; for 24h;93%
With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃;83%
2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

3-methoxy-2-(trimethylsilyl)phenyl-trifluoromethanesulfonate
217813-03-1

3-methoxy-2-(trimethylsilyl)phenyl-trifluoromethanesulfonate

1-methoxy-10-(3-methoxyphenyl)acridin-9(10H)-one
1385731-29-2

1-methoxy-10-(3-methoxyphenyl)acridin-9(10H)-one

Conditions
ConditionsYield
With cesium fluoride In acetonitrile at 20℃; for 24h;90%
2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

4-bromomethyltrifluoromethylbenzene
402-49-3

4-bromomethyltrifluoromethylbenzene

1-[[4-(trifluoromethyl)phenyl]methyl]-2,3-dihydroquinolin-4-one

1-[[4-(trifluoromethyl)phenyl]methyl]-2,3-dihydroquinolin-4-one

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In acetonitrile at 120℃; for 1.5h; Microwave irradiation;87.4%
2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

4(1H)-quinolinone
529-37-3

4(1H)-quinolinone

Conditions
ConditionsYield
With palladium 10% on activated carbon; sodium hydroxide In water; isopropyl alcohol for 16h; Inert atmosphere; Reflux;87%
With palladium on activated charcoal; water
tetrahydrofuran
109-99-9

tetrahydrofuran

2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

trimethylsilyl cyanide
7677-24-9

trimethylsilyl cyanide

5-hydroxy-2-(4-oxo-3,4-dihydroquinolin-1(2H)-yl)pentanenitrile

5-hydroxy-2-(4-oxo-3,4-dihydroquinolin-1(2H)-yl)pentanenitrile

Conditions
ConditionsYield
Stage #1: tetrahydrofuran With copper (I) acetate; 4,4'-di-tert-butyl-2,2'-bipyridine at 20℃; for 0.25h; Inert atmosphere;
Stage #2: 2,3-dihydroquinolin-4(1H)-one; trimethylsilyl cyanide With ammonium chloride; N-fluorobis(benzenesulfon)imide at 20℃; for 8h; Inert atmosphere;
87%
2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

6-bromo-2,3-dihydro-1H-quinolin-4-one
76228-06-3

6-bromo-2,3-dihydro-1H-quinolin-4-one

Conditions
ConditionsYield
With N-Bromosuccinimide In dichloromethane at 0℃; for 1.5h;86%
With N-Bromosuccinimide In dichloromethane at 20℃; for 1.5h;
With N-Bromosuccinimide In dichloromethane at 20℃; for 1.5h;
2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

A

(3,4-dimethoxyphenyl)(4-hydroxy-3,4-dihydroquinolin-1(2H)-yl)methanone
367509-05-5

(3,4-dimethoxyphenyl)(4-hydroxy-3,4-dihydroquinolin-1(2H)-yl)methanone

B

1-(3,4-dimethoxybenzoyl)-2,3-dihydroquinolin-4(1H)-one
367509-06-6

1-(3,4-dimethoxybenzoyl)-2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
A 86%
B n/a
2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

4,5-dimethoxy-2-(trimethylsilyl)phenyl trifluoromethanesulfonate

4,5-dimethoxy-2-(trimethylsilyl)phenyl trifluoromethanesulfonate

10-(3,4-dimethoxyphenyl)-2,3-dimethoxyacridin-9(10H)-one
1385731-26-9

10-(3,4-dimethoxyphenyl)-2,3-dimethoxyacridin-9(10H)-one

Conditions
ConditionsYield
With cesium fluoride In acetonitrile at 20℃; for 24h;85%
2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

2-amino-benzenethiol
137-07-5

2-amino-benzenethiol

12H-quino<3,4-b>-1,4-benzothazine
97819-50-6

12H-quino<3,4-b>-1,4-benzothazine

Conditions
ConditionsYield
With potassium tert-butylate In dimethyl sulfoxide at 110℃; for 10h;84%
2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

trimethylsilyl cyanide
7677-24-9

trimethylsilyl cyanide

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

N,N-dimethyl-formamide

2-(4-oxo-3,4-dihydroquinolin-1(2H)-yl)acetonitrile

2-(4-oxo-3,4-dihydroquinolin-1(2H)-yl)acetonitrile

Conditions
ConditionsYield
With copper diacetate; N-fluorobis(benzenesulfon)imide; 4,4'-di-tert-butyl-2,2'-bipyridine at 20℃; for 16h; Inert atmosphere;81%
2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

2-(trimethylsilyl)phenyl trifluoromethanesulfonate
88284-48-4

2-(trimethylsilyl)phenyl trifluoromethanesulfonate

10-phenylacridin-9(10H)-one
5472-23-1

10-phenylacridin-9(10H)-one

Conditions
ConditionsYield
With cesium fluoride In acetonitrile at 20℃; for 24h;77%
2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

chlorodifluoroacetic anhydride
2834-23-3

chlorodifluoroacetic anhydride

1-(2-chloro-2,2-difluoroacetyl)-2,3-dihydroquinolin-4(1H)-one

1-(2-chloro-2,2-difluoroacetyl)-2,3-dihydroquinolin-4(1H)-one

Conditions
ConditionsYield
With dmap; triethylamine In dichloromethane at 0 - 20℃; for 12h; Inert atmosphere;74%
2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

4,5-dimethyl-2-(trimethylsilyl)phenyl triflate

4,5-dimethyl-2-(trimethylsilyl)phenyl triflate

10-(3,4-dimethylphenyl)-2,3-dimethylacridin-9(10H)-one
1385731-25-8

10-(3,4-dimethylphenyl)-2,3-dimethylacridin-9(10H)-one

Conditions
ConditionsYield
With cesium fluoride In acetonitrile at 20℃; for 24h;73%
2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

2-(trimethylsilyl)phenyl trifluoromethanesulfonate
88284-48-4

2-(trimethylsilyl)phenyl trifluoromethanesulfonate

A

1-phenyl-2,3-dihydro-1H-quinolin-4-one
10258-13-6

1-phenyl-2,3-dihydro-1H-quinolin-4-one

B

10-phenylacridin-9(10H)-one
5472-23-1

10-phenylacridin-9(10H)-one

Conditions
ConditionsYield
With cesium fluoride In acetonitrile at 23℃; for 2h;A 20%
B 73%
2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

6-(trimethylsilyl)-5-indanyl triflate

6-(trimethylsilyl)-5-indanyl triflate

10-(3,4-dimethoxyphenyl)-2,3-dimethoxyacridin-9(10H)-[b]acridin-10(5H)-one
1385731-28-1

10-(3,4-dimethoxyphenyl)-2,3-dimethoxyacridin-9(10H)-[b]acridin-10(5H)-one

Conditions
ConditionsYield
With cesium fluoride In acetonitrile at 20℃; for 24h;69%
2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

methyl iodide
74-88-4

methyl iodide

1-methyl-1,2,3,4-tetrahydroquinolin-4-one
1198-15-8

1-methyl-1,2,3,4-tetrahydroquinolin-4-one

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 80℃;68%
With potassium carbonate In acetone at 80℃; for 16h;61%
With potassium carbonate In acetone at 80℃; for 16h;50%
2,3-dihydroquinolin-4(1H)-one
4295-36-7

2,3-dihydroquinolin-4(1H)-one

acetic anhydride
108-24-7

acetic anhydride

A

6-nitro-1,2,3,4-tetrahydroquinolin-4-one
57445-29-1

6-nitro-1,2,3,4-tetrahydroquinolin-4-one

B

1-acetyl-1,2,3,4-tetrahydroquinolin-4-one
64142-63-8

1-acetyl-1,2,3,4-tetrahydroquinolin-4-one

C

1-nitro-2,3-dihydro-1H-quinolin-4-one
1431552-24-7

1-nitro-2,3-dihydro-1H-quinolin-4-one

Conditions
ConditionsYield
With nitric acid; acetic acid at 0 - 20℃;A 25%
B 12%
C 65%

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