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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

Watermelon Ketone Manufacturer/High quality/Best price/In stock

Cas:28940-11-6

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Simagchem Corporation

Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our

High quality Watermelon Ketone,Calone supplier in China

Cas:28940-11-6

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

Jinan Finer Chemical Co., Ltd

Product Description

Watermelon Ketone

Cas:28940-11-6

Min.Order:1 Kilogram

FOB Price: $5.0 / 30.0

Type:Lab/Research institutions

inquiry

Hefei TNJ chemical industry co.,ltd

Properties White or light yellow crystalline powder. Specification

Watermelon Ketone cas#28940-11-6

Cas:28940-11-6

Min.Order:25 Kilogram

Negotiable

Type:Trading Company

inquiry

Henan Allgreen Chemical Co.,Ltd

The company has a professional R & D team, mature technology, very competitive prices and stable high quality products for customers to order high quality and low price product efforts! Appearance:White or off-white Solid Storage:Sealed, dry, m

7-Methyl-1,5-benzodioxepan-3-one

Cas:28940-11-6

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

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 7-methyl-2H-benzo-1,5-dioxepin-3(4H)-one

Cas:28940-11-6

Min.Order:1

Negotiable

Type:Other

inquiry

Xi'an Xszo Chem Co., Ltd.

1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s

Factory price Cosmetic METHYL BENZODIOXEPINONE 28940-11-6 Manufacturer

Cas:28940-11-6

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

inquiry

Shanghai Seasonsgreen Chemical Co.,Ltd

Shanghai Seasonsgreen Chemical is a high-tech research and development, production, sale and custom synthesis set in one high-tech chemical products enterprises. Our sales and marketing division is located in Shanghai, serving international pharmaceu

lower price High quality Watermelon Ketone

Cas:28940-11-6

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Manufacturers

inquiry

COLORCOM LTD.

Colorcom is a global leader in industrial chemical manufacturing and is continuously innovating and transforming to exceed client expectations and industry standards. Colorcom prides itself on superior customer and technical focus, while focusing on

Watermelon Ketone

Cas:28940-11-6

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

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

Watermelon keton

Cas:28940-11-6

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Henan Tianfu Chemical Co., Ltd.

Product Name: Watermelon Ketone Synonyms: -1,5-benzodioxepan-3-one;watermelon ketone E:candyli(at)speedgainpharma(dot)com;5-Benzodioxepin-3(4H)-one,7-methyl-2H-1;WATERMELON KETONE 50% SOLUTION IN ETHYL DIGLYCOL;7-Methyl-2,4-dihydro-3H-1,5-benzodio

28940-11-6 Watermelon Ketone

Cas:28940-11-6

Min.Order:1 Kilogram

FOB Price: $500.0

Type:Lab/Research institutions

inquiry

LIDE PHARMACEUTICALS LIMITED

LIDE PHARMACEUTICALS LIMITED is a professional chemicals and APIs leading manufacturer in China. Our core business line covers APIs, Intermediates, Herb extract, etc.

Watermelon Ketone

Cas:28940-11-6

Min.Order:1 Kilogram

FOB Price: $0.9 / 1.0

Type:Lab/Research institutions

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

With our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturin

Watermelon Ketone /CAS 28940-11-6

Cas:28940-11-6

Min.Order:1 Kilogram

FOB Price: $20.0 / 100.0

Type:Trading Company

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

Top Purity CAS 28940-11-6 with fast shipping

Cas:28940-11-6

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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

Watermelon Ketone 28940-11-6

Cas:28940-11-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Xi'an Faithful Biotech Co., Ltd.

We are the manufacturers and suppliers of API in China, and warehouse in Germany and USA of California, which can quickly and safely deliver to your address 1.High quality and competitive price. 2.Free sample for your evaluation. 3.Promptly delivery

Qingdao Beluga Import and Export Co., LTD

Watermelon Ketone CAS:28940-11-6 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 interme

Watermelon Ketone CAS:28940-11-6

Cas:28940-11-6

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

Watermelon Ketone

Cas:28940-11-6

Min.Order:1 Kilogram

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

Watermelon Ketone

Cas:28940-11-6

Min.Order:1 Kilogram

FOB Price: $30.0 / 50.0

Type:Lab/Research institutions

inquiry

Leader Biochemical Group

PRODUCT DETAILS Water

China Biggest Manufacturer factory sales Watermelon Ketone CAS 28940-11-6

Cas:28940-11-6

Min.Order:100 Kilogram

FOB Price: $1.0 / 2.0

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

Watermelon Ketone

Cas:28940-11-6

Min.Order:0

Negotiable

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

Watermelon Ketone cas 28940-11-6

Cas:28940-11-6

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

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

Watermelon Ketone

Cas:28940-11-6

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Hubei Jiutian Bio-medical Technology Co., Ltd

1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highly qualifie

cas 28940-11-6 Watermelon Ketone

Cas:28940-11-6

Min.Order:1 Kilogram

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

7-methyl-3,4-dihydro(2H)-1,5-benzodioxepepin-3-one

Cas:28940-11-6

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Chemlyte Solutions

Chemlyte Solutions believe that customers and suppliers deserve much more than what traditional distributors can offer. To grow in today s fast-paced and increasingly competitive market it is essential to be able to quickly adapt to market forces eff

Featured products Watermelon Ketone

Cas:28940-11-6

Min.Order:100 Gram

Negotiable

Type:Other

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 quality Watermelon Ketone,Calone

Cas:28940-11-6

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

7-methyl-3,4-dihydro(2H)-1,5-benzodioxepepin-3-one

Cas:28940-11-6

Min.Order:100 Gram

FOB Price: $100.0 / 2000.0

Type:Lab/Research institutions

inquiry

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,

competitive price 28940-11-6 98%MIN28940-11-6 Watermelon Ketone

Cas:28940-11-6

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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,

WatermelonKetone

Cas:28940-11-6

Min.Order:1 Milligram

Negotiable

Type:Trading Company

inquiry

Synthetic route

7-methyl-2,4-dihydrospiro[benzo[b][1,4]dioxepine-3,2'-[1,3]dioxolane]
1323441-46-8

7-methyl-2,4-dihydrospiro[benzo[b][1,4]dioxepine-3,2'-[1,3]dioxolane]

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

Conditions
ConditionsYield
With sulfuric acid In acetone for 6h; Reagent/catalyst; Solvent; Reflux;95%
7-methyl-2H-benzo[b][1,4]dioxepin-3(4H)-one oxime

7-methyl-2H-benzo[b][1,4]dioxepin-3(4H)-one oxime

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

Conditions
ConditionsYield
With sodium nitrite In water; acetonitrile at 40℃; for 10h;94%
(±)-7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-ol
944558-65-0

(±)-7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-ol

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

Conditions
ConditionsYield
With potassium hydroxide; potassium permanganate for 2.5h;87%
Reaxys ID: 11944038

Reaxys ID: 11944038

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

Conditions
ConditionsYield
With sodium carbonate; potassium iodide In acetone for 4h; Heating / reflux;84.45%
1,3-Dichloroacetone
534-07-6

1,3-Dichloroacetone

4-methyl-1,2-dihydroxybenzene
452-86-8

4-methyl-1,2-dihydroxybenzene

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

Conditions
ConditionsYield
With sodium carbonate; potassium iodide In butanone for 4.16667h; Heating / reflux;76.24%
With sodium carbonate; potassium iodide In cyclohexanone for 4.41667h; Heating / reflux;75.25%
With sodium carbonate; potassium iodide In acetone for 12h; Heating / reflux;59.91%
1,3-dibromoroacetone
816-39-7

1,3-dibromoroacetone

4-methyl-1,2-dihydroxybenzene
452-86-8

4-methyl-1,2-dihydroxybenzene

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

Conditions
ConditionsYield
With sodium carbonate; potassium iodide In acetone for 12h; Heating / reflux;69.95%
2,2'-[(4-methyl-1,2-phenylene)bis(oxy)]bis[acetic acid] dimethyl ester
52589-39-6

2,2'-[(4-methyl-1,2-phenylene)bis(oxy)]bis[acetic acid] dimethyl ester

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

Conditions
ConditionsYield
Stage #1: 2,2'-[(4-methyl-1,2-phenylene)bis(oxy)]bis[acetic acid] dimethyl ester With potassium tert-butylate In tetrahydrofuran at 70℃; for 0.5h; Dieckmann cyclisation;
Stage #2: With hydrogenchloride In ethanol; water for 0.0666667h; microwave irradiation;
Stage #1: 2,2'-[(4-methyl-1,2-phenylene)bis(oxy)]bis[acetic acid] dimethyl ester With potassium tert-butylate In tetrahydrofuran at 70℃; for 0.5h;
Stage #2: With hydrogenchloride In ethanol at 90℃; for 2h; Further stages.;
0.59 g
Stage #1: 2,2'-[(4-methyl-1,2-phenylene)bis(oxy)]bis[acetic acid] dimethyl ester With potassium tert-butylate In tetrahydrofuran at 70℃; for 0.5h; Dieckmann Condensation; Inert atmosphere;
Stage #2: With hydrogenchloride In ethanol; water at 120℃; for 8h;
3,4-dihydro-7-methyl-3-[(tetrahydro-2H-pyran-2-yl)oxy]-2H-1,5-benzodioxepine
944558-64-9

3,4-dihydro-7-methyl-3-[(tetrahydro-2H-pyran-2-yl)oxy]-2H-1,5-benzodioxepine

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 76 percent / vanadium pentoxide; aq. H2O2 / acetonitrile / 70 °C
2: 87 percent / aq. KOH; KMnO4 / 2.5 h
View Scheme
4-methyl-1,2-dihydroxybenzene
452-86-8

4-methyl-1,2-dihydroxybenzene

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: 83 percent / K2CO3 / dimethylformamide / 0.07 h / microwave irradiation
2.1: tBuOK / tetrahydrofuran / 0.5 h / 70 °C
2.2: 0.59 g / aq. HCl / ethanol / 2 h / 90 °C
View Scheme
Multi-step reaction with 2 steps
1: potassium hydroxide; ammonium iodide / acetone; ethanol / 4 h / Reflux
2: sulfuric acid / acetone / 6 h / Reflux
View Scheme
Multi-step reaction with 2 steps
1: potassium hydroxide; potassium iodide / ethanol; water / 4 h / Reflux
2: sulfuric acid / acetone / 6 h / Reflux
View Scheme
7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

7-methyl-2H-benzo[b][1,4]dioxepin-3(4H)-one oxime

7-methyl-2H-benzo[b][1,4]dioxepin-3(4H)-one oxime

Conditions
ConditionsYield
With hydroxylamine hydrochloride; sodium acetate In water; acetonitrile at 50℃; for 24h;94%
With hydroxylamine hydrochloride; sodium acetate In water; acetonitrile at 50℃; for 24h;90%
With hydroxylamine hydrochloride
7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

(±)-7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-ol
944558-65-0

(±)-7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-ol

Conditions
ConditionsYield
With lithium aluminium tetrahydride In diethyl ether at 25℃; for 1h; Inert atmosphere;92%
With hydrogen In methanol at 100℃; under 30003 Torr; for 12h; Autoclave;91.2%
With sodium tetrahydroborate In methanol; water at 20℃; for 4h;89%
With sodium tetrahydroborate In ethanol for 1h; Reflux;80%
3-chlorophenyl-isothiocyanate
2392-68-9

3-chlorophenyl-isothiocyanate

cyanoacetic acid amide
107-91-5

cyanoacetic acid amide

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

C20H16ClN3O3S
1258873-71-0

C20H16ClN3O3S

Conditions
ConditionsYield
Stage #1: 3-chlorophenyl-isothiocyanate; cyanoacetic acid amide With sodium hydroxide In N,N-dimethyl-formamide at 20℃; for 0.5h;
Stage #2: 7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one With acetic acid In N,N-dimethyl-formamide at 80℃; for 0.133333h; Microwave irradiation;
90%
phenyl isothiocyanate
103-72-0

phenyl isothiocyanate

cyanoacetic acid amide
107-91-5

cyanoacetic acid amide

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

C20H17N3O3S
1258873-69-6

C20H17N3O3S

Conditions
ConditionsYield
Stage #1: phenyl isothiocyanate; cyanoacetic acid amide With sodium hydroxide In N,N-dimethyl-formamide at 20℃; for 0.5h;
Stage #2: 7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one With acetic acid In N,N-dimethyl-formamide at 80℃; for 0.133333h; Microwave irradiation;
89%
4-fluorophenyl isothiocyanate
1544-68-9

4-fluorophenyl isothiocyanate

cyanoacetic acid amide
107-91-5

cyanoacetic acid amide

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

C20H16FN3O3S
1258873-70-9

C20H16FN3O3S

Conditions
ConditionsYield
Stage #1: 4-fluorophenyl isothiocyanate; cyanoacetic acid amide With sodium hydroxide In N,N-dimethyl-formamide at 20℃; for 0.5h;
Stage #2: 7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one With acetic acid In N,N-dimethyl-formamide at 80℃; for 0.133333h; Microwave irradiation;
89%
4-Chlorophenyl isothiocyanate
2131-55-7

4-Chlorophenyl isothiocyanate

cyanoacetic acid amide
107-91-5

cyanoacetic acid amide

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

C20H16ClN3O3S
1258873-72-1

C20H16ClN3O3S

Conditions
ConditionsYield
Stage #1: 4-Chlorophenyl isothiocyanate; cyanoacetic acid amide With sodium hydroxide In N,N-dimethyl-formamide at 20℃; for 0.5h;
Stage #2: 7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one With acetic acid In N,N-dimethyl-formamide at 80℃; for 0.133333h; Microwave irradiation;
87%
7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

7-bromo-8-methyl-2H-1,5-benzodioxepin-3(4H)-one

7-bromo-8-methyl-2H-1,5-benzodioxepin-3(4H)-one

Conditions
ConditionsYield
With sodium bromate; sodium disulfite In cyclohexane; water at 50℃; for 8h;85%
Cyanothioacetamide
7357-70-2

Cyanothioacetamide

phenyl isothiocyanate
103-72-0

phenyl isothiocyanate

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

C20H17N3O2S2
1258873-82-3

C20H17N3O2S2

Conditions
ConditionsYield
Stage #1: Cyanothioacetamide; phenyl isothiocyanate With sodium hydroxide In N,N-dimethyl-formamide at 20℃; for 0.5h;
Stage #2: 7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one With acetic acid In N,N-dimethyl-formamide at 80℃; for 0.133333h; Microwave irradiation;
82%
Benzyl isothiocyanate
622-78-6

Benzyl isothiocyanate

cyanoacetic acid amide
107-91-5

cyanoacetic acid amide

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

C21H19N3O3S
1258873-68-5

C21H19N3O3S

Conditions
ConditionsYield
Stage #1: Benzyl isothiocyanate; cyanoacetic acid amide With sodium hydroxide In N,N-dimethyl-formamide at 20℃; for 0.5h;
Stage #2: 7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one With acetic acid In N,N-dimethyl-formamide at 80℃; for 0.133333h; Microwave irradiation;
81%
isothiocyanatocyclohexane
1122-82-3

isothiocyanatocyclohexane

cyanoacetic acid amide
107-91-5

cyanoacetic acid amide

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

C20H23N3O3S
1258873-67-4

C20H23N3O3S

Conditions
ConditionsYield
Stage #1: isothiocyanatocyclohexane; cyanoacetic acid amide With sodium hydroxide In N,N-dimethyl-formamide at 20℃; for 0.5h;
Stage #2: 7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one With acetic acid In N,N-dimethyl-formamide at 80℃; for 0.133333h; Microwave irradiation;
80%
trimethyl orthoformate
149-73-5

trimethyl orthoformate

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

3,4-dihydro-3,3-dimethoxy-7-methyl-2H-1,5-benzodioxepine

3,4-dihydro-3,3-dimethoxy-7-methyl-2H-1,5-benzodioxepine

Conditions
ConditionsYield
With methanol; trifluorormethanesulfonic acid In nitromethane at 100℃; for 3h;72%
malononitrile
109-77-3

malononitrile

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

2-(7-methyl-2H-benzo[b][1,4]dioxepin-3(4H)-ylidene)malononitrile
1323441-44-6

2-(7-methyl-2H-benzo[b][1,4]dioxepin-3(4H)-ylidene)malononitrile

Conditions
ConditionsYield
With piperidine; acetic acid In benzene Reflux;52%
ethylene glycol
107-21-1

ethylene glycol

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

7-methyl-2,4-dihydrospiro[benzo[b][1,4]dioxepine-3,2'-[1,3]dioxolane]
1323441-46-8

7-methyl-2,4-dihydrospiro[benzo[b][1,4]dioxepine-3,2'-[1,3]dioxolane]

Conditions
ConditionsYield
With toluene-4-sulfonic acid In benzene for 12h; Reflux;45%
trimethyleneglycol
504-63-2

trimethyleneglycol

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

7-methyl-2,4-dihydrospiro[benzo[b][1,4]dioxepine-3,2'-[1,3]dioxane]
1323441-47-9

7-methyl-2,4-dihydrospiro[benzo[b][1,4]dioxepine-3,2'-[1,3]dioxane]

Conditions
ConditionsYield
With toluene-4-sulfonic acid In benzene for 12h; Reflux;38%
7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

3,4-dihydro-7-methyl-2H-1,5-benzodioxepin-3-yl acetate

3,4-dihydro-7-methyl-2H-1,5-benzodioxepin-3-yl acetate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 89 percent / NaBH4 / H2O; methanol / 4 h / 20 °C
2: 88 percent / Et3N / diethyl ether / 2 h / 20 °C
View Scheme
Multi-step reaction with 2 steps
1: lithium aluminium tetrahydride / diethyl ether / 1 h / 25 °C / Inert atmosphere
2: pyridine / 2 h / 100 °C / Inert atmosphere
View Scheme
7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

3,4-dihydro-7-methyl-2H-1,5-benzodioxepin-3-yl benzoate

3,4-dihydro-7-methyl-2H-1,5-benzodioxepin-3-yl benzoate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 89 percent / NaBH4 / H2O; methanol / 4 h / 20 °C
2: 44 percent / Et3N / diethyl ether / 2 h / 20 °C
View Scheme
7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

3,4-dihydro-7-methyl-2H-1,5-benzodioxepin-3-yl prop-2-enoate

3,4-dihydro-7-methyl-2H-1,5-benzodioxepin-3-yl prop-2-enoate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 89 percent / NaBH4 / H2O; methanol / 4 h / 20 °C
2: 22 percent / Et3N / diethyl ether / 2 h / 20 °C
View Scheme
7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

7-methyl-3,4-dihydro-2H-benzo[b][1,4]dioxepin-3-amine

7-methyl-3,4-dihydro-2H-benzo[b][1,4]dioxepin-3-amine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 94 percent / hydroxylamine hydrochloride; AcONa / acetonitrile; H2O / 24 h / 50 °C
2: 54 percent / NaBH4; TiCl4 / 1,2-dimethoxy-ethane / 24 h / 20 °C
View Scheme
Multi-step reaction with 2 steps
1: hydroxylamine hydrochloride; sodium acetate / water; acetonitrile / 24 h / 50 °C
2: sodium tetrahydroborate; titanium tetrachloride / diethyl ether / 24 h / 20 °C / Inert atmosphere
View Scheme
ethyl 2-cyanoacetate
105-56-6

ethyl 2-cyanoacetate

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

A

cis-ethyl-2-cyano-2-(7-methyl-2H-benzo[b][1,4]dioxepin-3(4H)-ylidene)acetate
1323441-45-7

cis-ethyl-2-cyano-2-(7-methyl-2H-benzo[b][1,4]dioxepin-3(4H)-ylidene)acetate

B

trans-ethyl-2-cyano-2-(7-methyl-2H-benzo[b][1,4]dioxepin-3(4H)-ylidene)acetate

trans-ethyl-2-cyano-2-(7-methyl-2H-benzo[b][1,4]dioxepin-3(4H)-ylidene)acetate

Conditions
ConditionsYield
With piperidine; acetic acid In benzene Reflux;
4-(N,N-dibutylamino)benzaldehyde
90134-10-4

4-(N,N-dibutylamino)benzaldehyde

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

7-methyl-2,4-bis[1-(4-dibutylaminophenyl)meth-(Z)-ylidene]benzo[b]-1,4-dioxepin-3-one
1430403-92-1

7-methyl-2,4-bis[1-(4-dibutylaminophenyl)meth-(Z)-ylidene]benzo[b]-1,4-dioxepin-3-one

Conditions
ConditionsYield
With potassium hydroxide In ethanol at 50℃; for 40h;1.45 g
asaraldehyde
4460-86-0

asaraldehyde

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one
28940-11-6

7-methyl-3,4-dihydro-2H-1,5-benzodioxepin-3-one

7-methyl-2,4-bis[1-(2,4,5-trimethoxyphenyl)meth-(Z)-ylidene]benzo[b]-1,4-dioxepin-3-one
1430403-79-4

7-methyl-2,4-bis[1-(2,4,5-trimethoxyphenyl)meth-(Z)-ylidene]benzo[b]-1,4-dioxepin-3-one

Conditions
ConditionsYield
With potassium hydroxide In ethanol at 40℃; for 2h;1.45 g
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