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Sinoway Industrial Co., Ltd.

Why is SINOWAY: 1) Specialized in pharmaceutical and healthcare industrial for 34 years. 2) ISO 9001:2015 & SGS audited supplier . 3) Accept various payment terms : T.T 30-60 days. 4) We have warehouse in USA with quickly shipment . 5) We c

Factory supply High Purity Coumarin powder CAS 91-64-5

Cas:91-64-5

Min.Order:25 Kilogram

FOB Price: $10.0

Type:Trading Company

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Jinan Finer Chemical Co., Ltd

Product Description Product website: http://www.finerchem.com/pro01en/id/1147.html Product Name Coumarin CAS No. 91-64-5 Appeara

Coumarin

Cas:91-64-5

Min.Order:1 Gram

FOB Price: $55.0

Type:Lab/Research institutions

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Dayang Chem (Hangzhou) Co.,Ltd.

As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch

2H-1-Benzopyran-2-one

Cas:91-64-5

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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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 Coumarin supplier in China

Cas:91-64-5

Min.Order:0 Metric Ton

Negotiable

Type:Manufacturers

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Wuhan Fortuna Chemical Co.,Ltd

Unique advantages for Coumarin Cas 91-64-5 Guaranteed the purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:White Powder Storage:Refrigerator Package:1kg/foil bag, 25kg/drum

Factory supply high quality Coumarin Cas 91-64-5 with best purity low price

Cas:91-64-5

Min.Order:1 Kilogram

FOB Price: $70.0

Type:Trading Company

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Xi'an Quanao Biotech Co., Ltd.

100% Organic natural plant Coumarin Ceylon cinnamon price cinnamon extract powder Professional Factory We has a complete production and operating system, with an annual output capacity of 2000 tons. It can produce variety of content and proportion

100% Organic natural plant Coumarin Ceylon cinnamon price cinnamon extract powder

Cas:91-64-5

Min.Order:100 Kilogram

FOB Price: $32.0 / 38.0

Type:Manufacturers

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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 Coumarin

Cas:91-64-5

Min.Order:1

Negotiable

Type:Other

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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

High Content Natural Extract Coumarin HACCP manufacturer

Cas:91-64-5

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

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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 Coumarin

Cas:91-64-5

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Manufacturers

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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

Coumarin

Cas:91-64-5

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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Henan Tianfu Chemical Co., Ltd.

Unique advantages for Coumarin CAS:91-64-5 Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment one of the biggest factory in the world Tianfu Chemical exported this product to many countries

Biggest factory supply Coumarin CAS:91-64-5

Cas:91-64-5

Min.Order:1 Kilogram

FOB Price: $1.0 / 100.0

Type:Lab/Research institutions

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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

Fast and Safe Delivery Wholesale Price High Quality with Fast Delivery Coumarin CAS 91-64-5

Cas:91-64-5

Min.Order:1 Kilogram

FOB Price: $1.0 / 10.0

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

Manufacturer supply CAS 91-64-5 with best quality

Cas:91-64-5

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Hebei yanxi chemical co.,LTD.

hebei yanxi chemical co., LTD who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do research and developmen

2H-1-Benzopyran-2-one CAS NO.91-64-5

Cas:91-64-5

Min.Order:1 Kilogram

FOB Price: $2.0 / 6.0

Type:Trading Company

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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

Hot Sell Factory Supply Raw Material CAS 91-64-5 ,Coumarin

Cas:91-64-5

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

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Hebei Sankai Chemical Technology Co., Ltd

1. Product advantages ♦ High purity, all above 98.5%, no impurities after dissolution ♦ We will test each batch to ensure quality ♦ OEM and private brand services designed for free ♦ Various cap colors available ♦ W

Coumarin CAS91-64-5

Cas:91-64-5

Min.Order:1 Kilogram

FOB Price: $7.0 / 9.0

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Coumarin (anhydride of o-coumaric acid) is white, crystalline lactone, obtainable naturally from several plants, such as tonka bean, lavender, sweet clover grass, strawberries, and cinnamon, or produced synthetically from an amino acid, phenylalani

Coumarin (None organochlorine)99% 91-64-5

Cas:91-64-5

Min.Order:1 Metric Ton

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

Coumarin 91-64-5

Cas:91-64-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Leader Biochemical Group

About Product Details Coumarin Basic information Brief Introduction Chemical Properties Uses Product Name: Coumarin Synonyms: TIMTEC-BB SBB000094;O-HYDROXYCINNAMIC

China Biggest Factory Manufacturer Supply Coumarin CAS 91-64-5

Cas:91-64-5

Min.Order:1 Kilogram

FOB Price: $1.0 / 2.0

Type:Lab/Research institutions

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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 pres

100% Natural Sweet Clove Extract Coumarin powder antineoplastic, antiinflammatory drugsCAS:91-64-5

Cas:91-64-5

Min.Order:1 Kilogram

FOB Price: $152.0 / 160.0

Type:Trading Company

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Qingdao Beluga Import and Export Co., LTD

91-64-5 CAS:91-64-5 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 intermediates, stero

91-64-5 CAS:91-64-5

Cas:91-64-5

Min.Order:1 Gram

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

Coumarin

Cas:91-64-5

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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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

Coumarin CAS91-64-5

Cas:91-64-5

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

CAS NO.:91-64-5

Cas:91-64-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Changchun Artel lmport and Export trade company

Price, service, company and transport advantage: 1.place of origin china with super quality by reasonable price. 2. it's customers' right to choose the package (ems, dhl, fedex, ups); 3. it's custo

BEST PRICE/Coumarin

Cas:91-64-5

Min.Order:10 Gram

Negotiable

Type:Trading Company

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Chengdu Biopurify Phytochemicals Ltd.

Chengdu Biopurify Phytochemicals Ltd. is a leading company in the research, development, manufacture and marketing of High Quality Phytochemicals and Extracts(especially Active Ingredients from Traditional Chinese Medicine,Traditional Chinese Medic

Coumarin 91-64-5

Cas:91-64-5

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Triumph International Development Limilted

Triumph has the complete production of G- KG - MT service chain,we can make the new technology into productivity quickly in the research and development of new products. Main Business Custom Synthesis: Trading(Raw Mater

Coumarin

Cas:91-64-5

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

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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

Coumarin

Cas:91-64-5

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

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Rely Chemicals Ltd.

Best quality/price/service Professional manufacturing FAO Standards Appearance:white crystal Package:Solid:50g,100g,200g,250g,400g,500g,1kg,10kg bag ,20kg, 25kg,40kg bag,50kg,600kg, 900kg; Aluminum Foil Bag,plastic bag, fiber bag, fiber drum,w

99%MIN Coumarin CAS No.: 91-64-5

Cas:91-64-5

Min.Order:0 Metric Ton

Negotiable

Type:Trading Company

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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

Coumarin

Cas:91-64-5

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Synthetic route

2-thiocoumarin
3986-98-9

2-thiocoumarin

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With sodium hydroxide; copper(l) chloride In water; acetonitrile at 25℃; for 0.25h;100%
With di(n-butyl)tin oxide In 1,4-dioxane Heating;97%
With hydrogenchloride; N-nitrosopiperidine; potassium iodide In dichloromethane; water at 22℃; for 24h;83%
With hydrogenchloride; sodium nitrite In dichloromethane; water at 45℃; for 22h;64%
With sodium carbonate; trifluoroacetic anhydride 1) CH2Cl2, r.t., 2 h; Yield given. Multistep reaction;
palladium-on-activated carbon

palladium-on-activated carbon

Pd-on-carbon Powder

Pd-on-carbon Powder

methyl 3-(2-oxocyclohexyl)propionate
10407-33-7

methyl 3-(2-oxocyclohexyl)propionate

A

coumarin
91-64-5

coumarin

B

C6H4(CH2CH2C(O)O)
119-84-6

C6H4(CH2CH2C(O)O)

Conditions
ConditionsYield
In methyl 3-(2-oxcyclohexyl)propionateA n/a
B 100%
(E)-n-butyl 3-(2-hydroxyphenyl)acrylate
3487-90-9

(E)-n-butyl 3-(2-hydroxyphenyl)acrylate

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
In ethylene glycol at 200℃; for 12h;99%
2-vinylphenyl acrylate

2-vinylphenyl acrylate

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride In dichloromethane at 45℃; for 24h;99%
tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride In dichloromethane at 20℃;70%
With Grubbs catalyst first generation In toluene at 80℃; for 2h; Inert atmosphere;
With Hoveyda-Grubbs catalyst second generation In chloroform-d1 at 25℃; for 24h; Reagent/catalyst; Time; Inert atmosphere; Sealed tube; Darkness;99 %Spectr.
2-oxo-2H-benzopyran-7-yl trifluoromethanesulfonate
108530-10-5

2-oxo-2H-benzopyran-7-yl trifluoromethanesulfonate

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With methanol; zinc; Ni(Ph3P); 1,3-bis-(diphenylphosphino)propane; potassium iodide; zinc In N,N-dimethyl-formamide at 50℃; for 4h;98%
With 1,1'-bis-(diphenylphosphino)ferrocene; formic acid; palladium diacetate; triethylamine In N,N-dimethyl-formamide at 60℃; for 2h;82%
methyl 2-coumarate
20883-98-1

methyl 2-coumarate

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
In methanol at 40 - 50℃; for 14h; UV-irradiation;96%
at 750℃;
(α6aH,β6bH,β12bH,α12cH)-cyclobuta<1,2-c,4,3-c1>bis<1>benzopyran-6,7-dione
5248-12-4

(α6aH,β6bH,β12bH,α12cH)-cyclobuta<1,2-c,4,3-c1>bis<1>benzopyran-6,7-dione

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With 2,4,6-triphenylpyrylium tetrafluoroborate In acetonitrile at 25℃; for 0.333333h; Quantum yield; Mechanism; Irradiation;96%
With 5-ethyl-1,3-dimethyl-8-(trifluoromethyl)alloxazinium perchlorate In acetonitrile at 20℃; for 0.5h; Catalytic behavior; Reagent/catalyst; Time; Irradiation; Inert atmosphere; Schlenk technique;92%
With trifluorormethanesulfonic acid; riboflavine tetraacetate In acetonitrile at 20℃; for 0.166667h; Reagent/catalyst; Solvent; Irradiation; Schlenk technique; Inert atmosphere;90%
In 1,4-dioxane for 0.266667h; Product distribution; Ambient temperature; Irradiation; correlation between photochemical fission and chemical structure;25 % Chromat.
UV-irradiation;
ethyl 3-(2-methoxyphenyl)acrylate
33877-05-3

ethyl 3-(2-methoxyphenyl)acrylate

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With boron tribromide In dichloromethane at 50℃; for 5h; Inert atmosphere;96%
3,4-dibromochroman-2-one

3,4-dibromochroman-2-one

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With diethyl 2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate; sodium carbonate In dimethyl sulfoxide at 20℃; for 1.5h; Inert atmosphere; Irradiation;96%
C6H4(CH2CH2C(O)O)
119-84-6

C6H4(CH2CH2C(O)O)

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With dimethyl cis-but-2-ene-1,4-dioate at 200℃;95%
Stage #1: C6H4(CH2CH2C(O)O) With di-n-butylboryl trifluoromethanesulfonate; N-ethyl-N,N-diisopropylamine In fluorobenzene; dichloromethane
Stage #2: With dichloro( 1,5-cyclooctadiene)platinum(ll); diallylcarbonate; silver trifluoroacetate In fluorobenzene; dichloromethane at 20℃; for 24h; Sealed tube; chemoselective reaction;
67%
With N,N’-di-tert-butylthiadiaziridine-1,1-dioxide; triphenylphosphine; copper(l) chloride at 65℃; for 20h; Inert atmosphere;60%
(E)-3-(2-Hydroxy-phenyl)-N-[2-(4-hydroxy-phenyl)-ethyl]-acrylamide

(E)-3-(2-Hydroxy-phenyl)-N-[2-(4-hydroxy-phenyl)-ethyl]-acrylamide

A

tyrosamine
51-67-2

tyrosamine

B

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With acetic acid In methanol for 2h; Ambient temperature; Irradiation; other N-subsituted amides of o-hydroxy-trans-cinnamic acid;A 95%
B 100 % Spectr.
2-oxo-2H-chromene-3-carboxylic acid
531-81-7

2-oxo-2H-chromene-3-carboxylic acid

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With pyridine for 5h; Heating;95%
With acetic acid; silver carbonate In 2,4-dichlorophenoxyacetic acid dimethylamine at 100℃; for 16h;63%
With copper(l) iodide; triethylamine In dimethyl sulfoxide at 120℃; under 760.051 Torr; for 20h; Inert atmosphere; Schlenk technique;57%
With bromobenzene; silver carbonate; palladium dichloride In dimethyl sulfoxide at 120℃; for 5h;
With dipotassium peroxodisulfate; silver(I) trifluoromethanethiolate; potassium carbonate In water; dimethyl sulfoxide at 110℃; for 24h; Solvent; Inert atmosphere; Sealed tube;33 %Spectr.
(E)-ethyl 2-hydroxycinnamate
3943-94-0, 17041-46-2, 6236-62-0

(E)-ethyl 2-hydroxycinnamate

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With tris[2-phenylpyridinato-C2,N]iridium(III) In acetonitrile at 20℃; for 24h; Sealed tube; Inert atmosphere; Irradiation;94%
With tributylphosphine In methanol at 70℃; for 20h; Solvent; Reagent/catalyst; Inert atmosphere;82%
With palladium on activated charcoal In dimethyl amine at 140℃; Sealed tube; Inert atmosphere;78%
In benzene for 1h; Irradiation;95 % Turnov.
With toluene-4-sulfonic acid In poly(methyl methacrylate) for 0.075h; Quantum yield; Reagent/catalyst; UV-irradiation; Darkness;
Propiolic acid
471-25-0

Propiolic acid

phenol
108-95-2

phenol

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With ytterbium(III) trifluoromethanesulfonate hydrate at 80℃; for 0.0333333h; Reagent/catalyst; Microwave irradiation;93%
With trifluoroacetic acid In chlorobenzene at 100℃; for 1h; Inert atmosphere;76%
With trifluorormethanesulfonic acid In chlorobenzene at 100℃; for 2h;76%
Acrylic acid ((E)-2-propenyl)-phenyl ester
151597-71-6

Acrylic acid ((E)-2-propenyl)-phenyl ester

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
Stage #1: Acrylic acid ((E)-2-propenyl)-phenyl ester With titanium(IV) isopropylate In dichloromethane for 1h; Heating;
Stage #2: tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride In dichloromethane for 4h; ring closing metathesis; Heating;
93%
phenyl prop-2-ynoate
60998-71-2

phenyl prop-2-ynoate

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With Echavarren's catalyst In dichloromethane at 18℃; for 1h;93%
With gold(III) chloride; silver trifluoromethanesulfonate In 1,2-dichloro-ethane at 50℃;84%
2-(1,1,1,1,1-pentacarbonyl-1-chroma)-2H-1-benzopyran

2-(1,1,1,1,1-pentacarbonyl-1-chroma)-2H-1-benzopyran

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With pyridine N-oxide In dichloromethane at 23℃; for 3h;93%
S-phenyl hydrogen thiomalonate
4279-77-0

S-phenyl hydrogen thiomalonate

salicylaldehyde
90-02-8

salicylaldehyde

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With triethylamine; benzylamine In chloroform at 55℃; for 6h; Reagent/catalyst; Solvent;93%
4-chloro-2H-1-benzopyran-2-one
17831-88-8

4-chloro-2H-1-benzopyran-2-one

A

coumarin
91-64-5

coumarin

B

4,4'-bis-(2H-chromen-2-one)
118545-81-6

4,4'-bis-(2H-chromen-2-one)

Conditions
ConditionsYield
With bis[2-(diphenylphosphino)phenyl] ether; potassium iodide; zinc; bis(triphenylphosphine)nickel(II) chloride In 1,4-dioxane at 130℃; for 0.5h; Ullmann-type reaction; microwave irradiation;A n/a
B 92%
(3R*,4R*)-3,4-dibromo-3,4-dihydrocoumarin

(3R*,4R*)-3,4-dibromo-3,4-dihydrocoumarin

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With tris(2,2'-bipyridyl)ruthenium dichloride; 1,5-dimethoxynaphthalene; ascorbic acid In methanol; water for 5h; Inert atmosphere; Irradiation;92%
3-((4-fluorophenyl)thio)-3-oxopropanoic acid
957770-83-1

3-((4-fluorophenyl)thio)-3-oxopropanoic acid

salicylaldehyde
90-02-8

salicylaldehyde

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With triethylamine; benzylamine In chloroform at 55℃; for 4h; Reagent/catalyst; Solvent;92%
n-butyl thiomalonate
19754-56-4

n-butyl thiomalonate

salicylaldehyde
90-02-8

salicylaldehyde

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With triethylamine; benzylamine In chloroform at 55℃; for 6h; Reagent/catalyst; Solvent;92%
acetic anhydride
108-24-7

acetic anhydride

salicylaldehyde
90-02-8

salicylaldehyde

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With polyphosphoric acid In N,N-dimethyl-formamide at 145℃; for 3h; Temperature; Solvent; Concentration; Time; Inert atmosphere;91%
With polyphosphoric acid In N,N-dimethyl-formamide at 145℃; for 3h; Temperature; Inert atmosphere;91%
With cesium acetate at 150 - 160℃; for 8h;79%
salicylaldehyde
90-02-8

salicylaldehyde

ethyl (triphenylphosphoranylidene)acetate
1099-45-2

ethyl (triphenylphosphoranylidene)acetate

A

(E)-ethyl 2-hydroxycinnamate
3943-94-0, 17041-46-2, 6236-62-0

(E)-ethyl 2-hydroxycinnamate

B

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
In toluene Heating;A 91%
B 4%
In xylene for 4h; Heating;A 83%
B 10%
for 4h; Heating;A 82.8%
B 9.6%
7-(1-Phenyl-1H-tetrazol-5-yloxy)-chromen-2-one
77924-22-2

7-(1-Phenyl-1H-tetrazol-5-yloxy)-chromen-2-one

A

1-phenyl-5-hydroxytetrazole
5097-82-5

1-phenyl-5-hydroxytetrazole

B

coumarin
91-64-5

coumarin

C

C6H4(CH2CH2C(O)O)
119-84-6

C6H4(CH2CH2C(O)O)

Conditions
ConditionsYield
With sodium hypophosphite; palladium on activated charcoal In ethanol; water; benzene for 0.916667h; Heating;A n/a
B 91%
C n/a
With sodium hypophosphite; palladium on activated charcoal In ethanol; benzene for 55h; Mechanism; Heating;A n/a
B 91%
C n/a
3,4-dibromo-3,4-dihydrocoumarin
42974-18-5

3,4-dibromo-3,4-dihydrocoumarin

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With sodium tetrahydroborate; nickel dichloride In methanol at 20℃; for 0.25h;90%
With sodium sulfide; Aliquat 336 In water; benzene for 1h; Ambient temperature;88%
With N,N,N,N,-tetramethylethylenediamine; sexithiophene In N,N-dimethyl-formamide for 2h; Inert atmosphere; Irradiation;88%
In methanol at 20℃; for 6h; Irradiation;65%
3,4,5,6,7,8-hexahydro-chromen-2-one
700-82-3

3,4,5,6,7,8-hexahydro-chromen-2-one

diethyl Fumarate
623-91-6

diethyl Fumarate

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
palladium-carbon90%
salicylaldehyde
90-02-8

salicylaldehyde

ethyl (triphenylphosphoranylidene)acetate
1099-45-2

ethyl (triphenylphosphoranylidene)acetate

coumarin
91-64-5

coumarin

Conditions
ConditionsYield
With N,N-diethylaniline at 210 - 215℃; for 4h;89.2%
With N,N-diethylaniline In xylene for 4h; Heating;89%
coumarin
91-64-5

coumarin

2-thiocoumarin
3986-98-9

2-thiocoumarin

Conditions
ConditionsYield
With tetraphosphorus decasulfide In 5,5-dimethyl-1,3-cyclohexadiene for 12h; Inert atmosphere; Reflux;100%
With Lawessons reagent for 0.05h; microwave irradiation;98%
With bis(tricyclohexyltin)sulfide; boron trichloride for 7h; Heating;94%
coumarin
91-64-5

coumarin

6-nitrocoumarin
2725-81-7

6-nitrocoumarin

Conditions
ConditionsYield
With sulfuric acid; nitric acid100%
Stage #1: coumarin With sulfuric acid at 4℃; for 0.166667h;
Stage #2: With guanidine nitrate
98%
With ammonium cerium(IV) nitrate; acetic acid at 20℃; for 2h;92%
coumarin
91-64-5

coumarin

C6H4(CH2CH2C(O)O)
119-84-6

C6H4(CH2CH2C(O)O)

Conditions
ConditionsYield
With formic acid; palladium In methanol; water Ambient temperature;100%
With hydrogen; W-2 Raney nickel In ethyl acetate for 0.833333h; Ambient temperature; Irradiation;100%
With hydrogen; palladium on activated charcoal In acetic acid under 760.051 Torr; for 12h;99%
decacarbonyl-1κ(4)C,2κ(3)C,3κ(3)C-μ-hydrido-2:3κ(2)H-μ-hydroxy-2:3κ(2)O-trisosmium-(3 Os-Os)

decacarbonyl-1κ(4)C,2κ(3)C,3κ(3)C-μ-hydrido-2:3κ(2)H-μ-hydroxy-2:3κ(2)O-trisosmium-(3 Os-Os)

coumarin
91-64-5

coumarin

Os3(CO)10(μ-H)(μ-OH)*coumarin

Os3(CO)10(μ-H)(μ-OH)*coumarin

Conditions
ConditionsYield
In hexane ligand was added to hexane soln. of Os-cluster in Schlenk tube, stirred for 100 min at room temp. under N2; solvent was removed under reduced pressure, recrystd. from CH2Cl2/hexaneat -5°C; elem. anal.;99%
coumarin
91-64-5

coumarin

coumarin-d6
116295-83-1

coumarin-d6

Conditions
ConditionsYield
With 10% Pt/activated carbon; water-d2 In cyclohexane; isopropyl alcohol at 80℃; for 24h; Inert atmosphere;99%
1-ethoxy-1-(tert-butyldimethylsilyloxy)ethene
42201-84-3

1-ethoxy-1-(tert-butyldimethylsilyloxy)ethene

coumarin
91-64-5

coumarin

cyclohexanone
108-94-1

cyclohexanone

ethyl 2-(3-(1-((tert-butyldimethylsilyl)oxy)cyclohexyl)-2-oxochroman-4-yl)acetate

ethyl 2-(3-(1-((tert-butyldimethylsilyl)oxy)cyclohexyl)-2-oxochroman-4-yl)acetate

Conditions
ConditionsYield
Stage #1: 1-ethoxy-1-(tert-butyldimethylsilyloxy)ethene; coumarin With C18H14F18O15S6 In dichloromethane at -78℃; for 0.5h; Inert atmosphere;
Stage #2: cyclohexanone In dichloromethane at -78℃; for 0.5h; Reagent/catalyst; Inert atmosphere;
99%
coumarin
91-64-5

coumarin

salicylic acid
69-72-7

salicylic acid

2H,6H-pyrano<3,2-b>xanthene-2,6-dione

2H,6H-pyrano<3,2-b>xanthene-2,6-dione

Conditions
ConditionsYield
With ytterbium(III) trifluoromethanesulfonate nonohydrate In neat (no solvent) for 0.0833333h; Milling; Microwave irradiation;98%
6,7-dimethoxy-1-methyl-3,4-dihydroisoquinoline
4721-98-6

6,7-dimethoxy-1-methyl-3,4-dihydroisoquinoline

coumarin
91-64-5

coumarin

(10RS,15aRS)-2,3-dimethoxy-9,10-dihydro-5H-10,15a methanobenzo[7,8][1,3]oxazocino[2,3-a]isoquinolin-8(6H)-one

(10RS,15aRS)-2,3-dimethoxy-9,10-dihydro-5H-10,15a methanobenzo[7,8][1,3]oxazocino[2,3-a]isoquinolin-8(6H)-one

Conditions
ConditionsYield
With sodium carbonate In water at 80℃; for 16h; Solvent; Temperature; Reagent/catalyst; stereoselective reaction;98%
2-Methylbenzophenone
131-58-8

2-Methylbenzophenone

coumarin
91-64-5

coumarin

7-hydroxy-7-phenyl-6a,7,12,12a-tetrahydro-6H-naphtho[2,3-c]chromen-6-one

7-hydroxy-7-phenyl-6a,7,12,12a-tetrahydro-6H-naphtho[2,3-c]chromen-6-one

Conditions
ConditionsYield
In toluene at 25℃; for 0.583333h; Concentration; Solvent; Time; Inert atmosphere; UV-irradiation; Flow reactor; diastereoselective reaction;98%
diphenyl diselenide
1666-13-3

diphenyl diselenide

coumarin
91-64-5

coumarin

3-(phenylselanyl)-2H-chromen-2-one

3-(phenylselanyl)-2H-chromen-2-one

Conditions
ConditionsYield
With trimethylsilylazide; bis-[(trifluoroacetoxy)iodo]benzene In dichloromethane at 20℃; for 0.5h; Solvent; Reagent/catalyst;98%
With bis-[(trifluoroacetoxy)iodo]benzene In dichloromethane at 20℃; for 1h; Reagent/catalyst; Solvent; regioselective reaction;95%
bis(2-methylphenyl) diselenide
69447-36-5

bis(2-methylphenyl) diselenide

coumarin
91-64-5

coumarin

3-(o-tolylselanyl)-2H-chromen-2-one

3-(o-tolylselanyl)-2H-chromen-2-one

Conditions
ConditionsYield
With bis-[(trifluoroacetoxy)iodo]benzene In dichloromethane at 20℃; for 1.5h; regioselective reaction;98%
1,2-bis(3-fluorophenyl)diselane
63930-16-5

1,2-bis(3-fluorophenyl)diselane

coumarin
91-64-5

coumarin

3-((3-fluorophenyl)selanyl)-2H-chromen-2-one

3-((3-fluorophenyl)selanyl)-2H-chromen-2-one

Conditions
ConditionsYield
With bis-[(trifluoroacetoxy)iodo]benzene In dichloromethane at 20℃; for 2h; regioselective reaction;98%
di-p-tolyl diselenide
21856-94-0

di-p-tolyl diselenide

coumarin
91-64-5

coumarin

3-(p-tolylselanyl)-2H-chromen-2-one

3-(p-tolylselanyl)-2H-chromen-2-one

Conditions
ConditionsYield
With bis-[(trifluoroacetoxy)iodo]benzene In dichloromethane at 20℃; for 1h; regioselective reaction;98%
2,3-Dimethyl-2-butene
563-79-1

2,3-Dimethyl-2-butene

coumarin
91-64-5

coumarin

1,1,2,2-tetramethyl-2,2adihydro-1H-cyclobuta[c]chromen-3(8bH)-one
7305-18-2

1,1,2,2-tetramethyl-2,2adihydro-1H-cyclobuta[c]chromen-3(8bH)-one

Conditions
ConditionsYield
With aluminum tri-bromide In dichloromethane; 1,2-dibromomethane at 20℃; for 5h; Inert atmosphere; Irradiation;97%
coumarin
91-64-5

coumarin

phenylboronic acid
98-80-6

phenylboronic acid

4-phenylcoumarin
15185-05-4

4-phenylcoumarin

Conditions
ConditionsYield
With 5-Nitro-1,10-phenanthroline; oxygen; palladium diacetate In N,N-dimethyl-formamide at 80℃; for 24h; Heck reaction; chemoselective reaction;97%
With 1,10-Phenanthroline; oxygen In N,N-dimethyl-formamide at 100℃; for 24h; Catalytic behavior; Solvent; Suzuki Coupling; Sealed tube; regioselective reaction;87%
With 1,10-Phenanthroline; oxygen; palladium diacetate In N,N-dimethyl-formamide at 100℃; for 24h; Sealed tube;82%
With 5-Nitro-1,10-phenanthroline; oxygen; palladium diacetate In N,N-dimethyl-formamide at 80℃; for 12h; Schlenk technique; Sealed tube;60%
Stage #1: coumarin With 1,10-Phenanthroline; oxygen; palladium diacetate In acetonitrile for 0.0833333h; Heck type reaction;
Stage #2: phenylboronic acid In N,N-dimethyl-formamide at 100℃; Heck type reaction; regioselective reaction;
14%
1-ethoxy-1-(tert-butyldimethylsilyloxy)ethene
42201-84-3

1-ethoxy-1-(tert-butyldimethylsilyloxy)ethene

coumarin
91-64-5

coumarin

acetone
67-64-1

acetone

ethyl 2-(3-(2-((tert-butyldimethylsilyl)oxy)propan-2-yl)-2-oxochroman-4-yl)acetate

ethyl 2-(3-(2-((tert-butyldimethylsilyl)oxy)propan-2-yl)-2-oxochroman-4-yl)acetate

Conditions
ConditionsYield
Stage #1: 1-ethoxy-1-(tert-butyldimethylsilyloxy)ethene; coumarin With C18H14F18O15S6 In dichloromethane at -78℃; for 0.5h; Inert atmosphere;
Stage #2: acetone In dichloromethane at -78℃; for 0.5h; Inert atmosphere;
97%
N,N-dimethyl acetamide
127-19-5

N,N-dimethyl acetamide

coumarin
91-64-5

coumarin

N-methyl-N-((2-oxo-2H-chromen-3-yl)methyl)acetamide

N-methyl-N-((2-oxo-2H-chromen-3-yl)methyl)acetamide

Conditions
ConditionsYield
With 1,4-diaza-bicyclo[2.2.2]octane; di-tert-butyl peroxide at 120℃; for 6h;97%
With di-tert-butyl peroxide; potassium iodide at 120℃; for 20h; Sealed tube;77%
ethanol
64-17-5

ethanol

coumarin
91-64-5

coumarin

ethyl 3-(2-hydroxyphenyl)propanoate
20921-04-4

ethyl 3-(2-hydroxyphenyl)propanoate

Conditions
ConditionsYield
With (BQ‑NCOP)IrHCl; sodium t-butanolate at 60℃; for 8h; Inert atmosphere; Schlenk technique; Sealed tube; chemoselective reaction;97%
1,9-dimethyl-3,4-dihydro-β-carboline
91806-16-5

1,9-dimethyl-3,4-dihydro-β-carboline

coumarin
91-64-5

coumarin

(5RS,15bRS)-15-methyl-5,6,9,10-tetrahydro-5,15b-methanobenzo[7',8'][1,3]oxazocino-[3',2':1,2]pyrido[3,4-b]indol-7(15H)-one

(5RS,15bRS)-15-methyl-5,6,9,10-tetrahydro-5,15b-methanobenzo[7',8'][1,3]oxazocino-[3',2':1,2]pyrido[3,4-b]indol-7(15H)-one

Conditions
ConditionsYield
With sodium carbonate In water at 80℃; for 20h; stereoselective reaction;97%
sodium 2,2,2-trifluoroacetate
2923-18-4

sodium 2,2,2-trifluoroacetate

coumarin
91-64-5

coumarin

3-((trifluoromethyl)thio)-2H-chromen-2-one

3-((trifluoromethyl)thio)-2H-chromen-2-one

Conditions
ConditionsYield
With iron(III) chloride; sulfur In ethanol at 60℃; for 2h; Sealed tube;97%
1,2-bis(4-bromophenyl)diselenide
20541-48-4

1,2-bis(4-bromophenyl)diselenide

coumarin
91-64-5

coumarin

3-((4-bromophenyl)selanyl)-2H-chromen-2-one

3-((4-bromophenyl)selanyl)-2H-chromen-2-one

Conditions
ConditionsYield
With bis-[(trifluoroacetoxy)iodo]benzene In dichloromethane at 20℃; for 1.5h;97%
With bis-[(trifluoroacetoxy)iodo]benzene In dichloromethane at 20℃; for 1.5h; regioselective reaction;97%
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