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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

3,3-Diphenyl-3H-naphtho[2,1-b]pyran

Cas:4222-20-2

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Wuhan Fortuna Chemical Co.,Ltd

High quality 3,3-Diphenyl-3H-naphtho[2,1-b]pyran CAS 4222-20-2 with factory price Company profile Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical & its intermediate

High quality 3,3-Diphenyl-3H-naphtho[2,1-b]pyran CAS 4222-20-2 with factory price

Cas:4222-20-2

Min.Order:10 Kilogram

FOB Price: $10.0

Type:Trading Company

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Henan Tianfu Chemical Co., Ltd.

Product Name: 3,3-Diphenyl-3H-naphtho[2,1-b]pyran Synonyms: 3,3-Diphenyl-3H-benzo[f]chromene;3,3-DIPHENYL-3H-NAPHTHO[2,1-B]PYRAN;2,2-Diphenyl-2H-1-oxaphenanthrene;2,2-Diphenyl-5,6-[1,3]butadieno-2H-1-benzopyran;2,2-Diphenyl-5,6-benzo(2

4222-20-2 3,3-Diphenyl-3H-naphtho[2,1-b]pyran

Cas:4222-20-2

Min.Order:1 Kilogram

FOB Price: $8900.0

Type:Lab/Research institutions

inquiry

Zhuozhou Wenxi import and Export Co., Ltd

WITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et

Pharmaceutical Grade CAS 4222-20-2 with competitive price

Cas:4222-20-2

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

Shanghai Upbio Tech Co.,Ltd

1.In No Less 10 years exporting experience. you 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 Specializ

3H-Naphtho[2,1-b]pyran,3,3-diphenyl-

Cas:4222-20-2

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shandong Hanjiang Chemical Co., Ltd.

Hello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai

3H-Naphtho[2,1-b]pyran,3,3-diphenyl-

Cas:4222-20-2

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Wentao Chemical Product Co., Ltd.

Henan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod

3H-Naphtho[2,1-b]pyran,3,3-diphenyl-

Cas:4222-20-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

HANGZHOU YUNUO CHEMICAL CO.,LTD

superior quality moderate price & quick delivery Appearance:powder Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:1kg/bag, 1kg/drum or 25kg/drum or as per your request. Application: Used to make other chemi

3H-Naphtho[2,1-b]pyran,3,3-diphenyl-

Cas:4222-20-2

Min.Order:1 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

3,3-Diphenyl-3H-naphtho[2,1-b]pyran

Cas:4222-20-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

SHANGHAI T&W PHARMACEUTICAL CO., LTD.

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

3,3-Diphenyl-3H-naphtho[2,1-b]pyran

Cas:4222-20-2

Min.Order:4 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

TAIZHOU ZHENYU BIOTECHNOLOGY CO., LTD

Zhenyu biotech exported this product to many countries and regions at best price. if you are looking for the material's manufacturer or supplier in china, zhenyu biotech is your best choice. pls contact with us freely for getting detailed

3,3-Diphenyl-3H-naphtho[2,1-b]pyran

Cas:4222-20-2

Min.Order:1 Kilogram

FOB Price: $2.0

Type:Lab/Research institutions

inquiry

KAISA GROUP INC

1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer

4222-20-2 CAS NO.4222-20-2

Cas:4222-20-2

Min.Order:1 Metric Ton

FOB Price: $7.0 / 8.0

Type:Trading Company

inquiry

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

3,3-diphenyl-3H-naphtho[2,1-b]byran

Cas:4222-20-2

Min.Order:100 Gram

Negotiable

Type:Manufacturers

inquiry

Hunan chemfish Pharmaceutical co.,Ltd

Appearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea

3,3-Diphenyl-3H-naphtho[2,1-b]pyran

Cas:4222-20-2

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Greenutra Resource Inc

3,3-Diphenyl-3H-naphtho[2,1-b]pyranAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air

3,3-Diphenyl-3H-naphtho[2,1-b]pyran

Cas:4222-20-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Kono Chem Co.,Ltd

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

3,3-Diphenyl-3H-naphtho[2,1-b]pyran

Cas:4222-20-2

Min.Order:0

Negotiable

Type:Other

inquiry

GIHI CHEMICALS CO.,LIMITED

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

3,3-Diphenyl-3H-naphtho[2,1-b]pyran

Cas:4222-20-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Henan Allgreen Chemical Co.,Ltd

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

3,3-Diphenyl-3H-naphtho[2,1-b]pyran

Cas:4222-20-2

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Henan Sinotech Import&Export Corporation

Product Name: 3,3-Diphenyl-3H-benzo[f]chromene Identification Synonyms 3,3-Diphenyl-3H-naphtho[2,1-b]pyran Molecular Formula C25H18O Molecular Weight 334.41 CAS Number 4222-20-2 Properties Appearance Pink crystalline powder Melting Point 160 º

3,3-Diphenyl-3H-benzo[f]chromene

Cas:4222-20-2

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

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

3H-Naphtho[2,1-b]pyran,3,3-diphenyl-

Cas:4222-20-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

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

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

3,3-diphenyl-3H-naphtho[2,1-b]byran

Cas:4222-20-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

BOC Sciences

We are committed to providing our customers with the best products and services at the most competitive prices.Appearance:white to yellow crystal powder Storage:Room temperature with sealed well Package:according to the clients requirement Applicatio

3,3-Diphenyl-3H-naphtho[2,1-b]pyran

Cas:4222-20-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Changchun Artel lmport and Export trade company

Supply top quality products with a reasonable price Application:api

4222-20-2

Cas:4222-20-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hangzhou Fandachem Co.,Ltd

3,3-Diphenyl-3H-naphtho[2,1-b]pyran cas 4222-20-2Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express

3,3-Diphenyl-3H-naphtho[2,1-b]pyran cas 4222-20-2

Cas:4222-20-2

Min.Order:0

Negotiable

Type:Other

inquiry

Hangzhou Sartort Biopharma Co., Ltd

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

3,3-Diphenyl-3H-naphtho[2,1-b]pyran

Cas:4222-20-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Henan Kanbei Chemical Co.,LTD

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

3,3-Diphenyl-3H-naphtho[2,1-b]pyran

Cas:4222-20-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Chemlyte Solutions

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

3,3-diphenylbenzo[f]chromene

Cas:4222-20-2

Min.Order:0

Negotiable

Type:Other

inquiry

Hunan Russell Chemicals Technology Co.,Ltd

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:any port in China

3,3-Diphenyl-3H-naphtho[2,1-b]pyran 4222-20-2

Cas:4222-20-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shenzhen Foris Technology Co. LTD

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:any port in China

3,3-Diphenyl-3H-naphtho[2,1-b]pyran 4222-20-2

Cas:4222-20-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

ZHEJIANG JIUZHOU CHEM CO.,LTD

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

3,3-Diphenyl-3H-naphtho[2,1-b]pyran

Cas:4222-20-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Synthetic route

1,1-diphenyl-2-propyn-1-ol
3923-52-2

1,1-diphenyl-2-propyn-1-ol

β-naphthol
135-19-3

β-naphthol

3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

Conditions
ConditionsYield
With sodium hydroxide; toluene-4-sulfonic acid In hexane; benzene98%
With sodium hydroxide; toluene-4-sulfonic acid In hexane; benzene98%
With sodium hydroxide; toluene-4-sulfonic acid In hexane; benzene98%
3,3-diphenyl-2-propenal
1210-39-5

3,3-diphenyl-2-propenal

β-naphthol
135-19-3

β-naphthol

3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

Conditions
ConditionsYield
With benzoic acid; 3,5-bis-trifluromethylphenylboronic acid In n-heptane at 80℃; for 17h; Sealed tube;75%
1,1-Diphenylethylene
530-48-3

1,1-Diphenylethylene

2-hydroxynaphthalene-1-carbaldehyde
708-06-5

2-hydroxynaphthalene-1-carbaldehyde

3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

Conditions
ConditionsYield
With trifluorormethanesulfonic acid; trimethyl orthoformate In toluene at 20℃; for 6h; Inert atmosphere;66%
With trifluorormethanesulfonic acid; trimethyl orthoformate In toluene at 20℃; for 6h; Inert atmosphere; regioselective reaction;66%
1,1-Diphenylethylene
530-48-3

1,1-Diphenylethylene

2-hydroxynaphthalene-1-carbaldehyde
708-06-5

2-hydroxynaphthalene-1-carbaldehyde

trimethyl orthoformate
149-73-5

trimethyl orthoformate

A

3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

B

2,3-dihydro-1-methoxy-3,3-diphenyl-1H-naphtho[2,1-b]pyran

2,3-dihydro-1-methoxy-3,3-diphenyl-1H-naphtho[2,1-b]pyran

Conditions
ConditionsYield
With trifluorormethanesulfonic acid In toluene at 20℃; for 1h; Inert atmosphere;A 32%
B 33%
3H-benzo[f]chromen-3-one
4352-89-0

3H-benzo[f]chromen-3-one

phenylmagnesium iodide
16002-63-4

phenylmagnesium iodide

3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

Conditions
ConditionsYield
With diethyl ether; benzene Erhitzen des nach der Hydrolyse erhaltenen Reaktionsprodukts mit Wasserdampf;
1-(3,3-diphenylprop-2-enylidene)naphthalen-2-one
209051-94-5

1-(3,3-diphenylprop-2-enylidene)naphthalen-2-one

3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

Conditions
ConditionsYield
In ethanol at 5℃; under 750.06 Torr; Kinetics; Further Variations:; Pressures; Solvents; Temperatures;
In acetic acid methyl ester at 25℃; under 750.06 Torr; Kinetics; Further Variations:; Pressures; Solvents; Temperatures;
In ethyl acetate at 14℃; Kinetics;
In acetonitrile at 20℃; Kinetics;
In toluene at 24.84℃; Kinetics;
1-(3,3-diphenylprop-2-enylidene)naphthalen-2-one
209051-94-5

1-(3,3-diphenylprop-2-enylidene)naphthalen-2-one

A

3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

B

1-[3,3-Diphenyl-prop-2-en-(E)-ylidene]-1H-naphthalen-2-one
194417-56-6

1-[3,3-Diphenyl-prop-2-en-(E)-ylidene]-1H-naphthalen-2-one

Conditions
ConditionsYield
In acetonitrile at 24℃; Kinetics;
1-[3,3-Diphenyl-prop-2-en-(E)-ylidene]-1H-naphthalen-2-one
194417-56-6

1-[3,3-Diphenyl-prop-2-en-(E)-ylidene]-1H-naphthalen-2-one

A

3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

B

1-(3,3-diphenylprop-2-enylidene)naphthalen-2-one
209051-94-5

1-(3,3-diphenylprop-2-enylidene)naphthalen-2-one

Conditions
ConditionsYield
In acetonitrile at 24℃; Kinetics;
benzophenone
119-61-9

benzophenone

(+-)-magnesium chloride-

(+-)-magnesium chloride-

3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: ethylenediamine / tetrahydrofuran / Ambient temperature
2: 62 percent / p-TosOH / CH2Cl2 / Heating
View Scheme
1-(3,3-diphenylprop-2-enylidene)naphthalen-2-one

1-(3,3-diphenylprop-2-enylidene)naphthalen-2-one

3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

Conditions
ConditionsYield
With polymethylmethacrylate Darkness;
With 1-butyl-3-methylimidazolium camphorsulfonate at 25℃; under 4500450 Torr; Activation energy; Kinetics; Reagent/catalyst; Pressure;
benzophenone
119-61-9

benzophenone

3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: tetrahydrofuran / 0 - 20 °C
1.2: Cooling with ice
2.1: toluene-4-sulfonic acid / toluene / 2 h / Reflux
View Scheme
Multi-step reaction with 3 steps
1.1: n-butyllithium / tetrahydrofuran; hexane / 0.5 h / 10 °C / Inert atmosphere
1.2: 3 h / Inert atmosphere
2.1: potassium hydroxide / tetrahydrofuran; methanol; hexane / 0 - 20 °C
3.1: pyridinium p-toluenesulfonate; trimethyl orthoformate / 1,2-dichloro-ethane / Reflux
View Scheme
Multi-step reaction with 2 steps
1.1: n-butyllithium / tetrahydrofuran; hexane / 0.5 h / -10 °C / Inert atmosphere
1.2: 4 h / 20 °C / Inert atmosphere
1.3: 0.33 h / 0 °C / Inert atmosphere
2.1: 3,5-bis-trifluromethylphenylboronic acid; benzoic acid / n-heptane / 17 h / 80 °C / Sealed tube
View Scheme
1-[3,3-Diphenyl-prop-2-en-(E)-ylidene]-1H-naphthalen-2-one
194417-56-6

1-[3,3-Diphenyl-prop-2-en-(E)-ylidene]-1H-naphthalen-2-one

3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

Conditions
ConditionsYield
In acetonitrile at 20℃; Kinetics;
1,1-diphenyl-3-(trimethylsilyl)prop-2-yn-1-ol
73502-43-9

1,1-diphenyl-3-(trimethylsilyl)prop-2-yn-1-ol

3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: potassium hydroxide / tetrahydrofuran; methanol; hexane / 0 - 20 °C
2: pyridinium p-toluenesulfonate; trimethyl orthoformate / 1,2-dichloro-ethane / Reflux
View Scheme
Multi-step reaction with 2 steps
1: potassium carbonate; methanol / tetrahydrofuran
2: montmorillonite K-10 / toluene / 0.75 h / 20 °C
View Scheme
1-bromo-2-(1-phenylpropen-1-yl)benzene
24892-82-8

1-bromo-2-(1-phenylpropen-1-yl)benzene

C24H20N2O3S

C24H20N2O3S

A

2-benzhydrylnaphtho[2,1-b]furan
124421-64-3

2-benzhydrylnaphtho[2,1-b]furan

B

3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

Conditions
ConditionsYield
With bis(η3-allyl-μ-chloropalladium(II)); potassium carbonate; 1,4-di(diphenylphosphino)-butane In 2-methyltetrahydrofuran at 100℃; for 48h; Tsuji-Trost Allylation; Schlenk technique; Inert atmosphere; Overall yield = 60 percent; Overall yield = 40 mg; regioselective reaction;
3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

2-bromo-3,3-diphenyl-3H-benzo[f]chromene

2-bromo-3,3-diphenyl-3H-benzo[f]chromene

Conditions
ConditionsYield
Stage #1: 3,3-diphenyl-3H-naphtho[2,1-b]pyran With N-Bromosuccinimide In water; dimethyl sulfoxide at 20℃; for 0.333333h;
Stage #2: With toluene-4-sulfonic acid In toluene for 2.5h; Reflux;
85%
3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

2-benzhydryl-naphtho[2,1-b]furan

2-benzhydryl-naphtho[2,1-b]furan

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 19.85℃; for 12h; Irradiation;66%
3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

benzophenone
119-61-9

benzophenone

Conditions
ConditionsYield
In acetonitrile at 13℃; Product distribution; Irradiation; photodecomposition and singlet oxygen production during photosensitization;
3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

1-(3,3-diphenylprop-2-enylidene)naphthalen-2-one
209051-94-5

1-(3,3-diphenylprop-2-enylidene)naphthalen-2-one

Conditions
ConditionsYield
In toluene at 25℃; Quantum yield; Rate constant; Irradiation; flash photolysis (ca 60 J, ca 50 μs); spectrokinetic properties;
In toluene at 25℃; Kinetics; ring opening; Flash photolysis;
In (2)H8-toluene at -73.16℃; Solvent; Temperature; UV-irradiation;
3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

A

1-(3,3-diphenylprop-2-enylidene)naphthalen-2-one
209051-94-5

1-(3,3-diphenylprop-2-enylidene)naphthalen-2-one

B

1-[3,3-Diphenyl-prop-2-en-(E)-ylidene]-1H-naphthalen-2-one
194417-56-6

1-[3,3-Diphenyl-prop-2-en-(E)-ylidene]-1H-naphthalen-2-one

Conditions
ConditionsYield
In acetonitrile Product distribution; Rate constant; Irradiation; bleaching at the photostationary state in MeCN solution; photochromic equilibrium; kinetic and structural studies of the photochromic process of 3H-naphthopyrans by UV and NMR spectroscopy;
In ethyl acetate at 14℃; Kinetics; UV-irradiation;
In acetonitrile at 24℃; Irradiation; Title compound not separated from byproducts.;
3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

1-(3,3-diphenylprop-2-enylidene)naphthalen-2-one

1-(3,3-diphenylprop-2-enylidene)naphthalen-2-one

Conditions
ConditionsYield
In acetonitrile UV-irradiation;
In acetonitrile at 20℃; UV-irradiation;
With polymethylmethacrylate UV-irradiation;
3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

C25H18O

C25H18O

Conditions
ConditionsYield
Stage #1: 3,3-diphenyl-3H-naphtho[2,1-b]pyran at -193.16℃; UV-irradiation; neat (no solvent, solid phase);
Stage #2: at -193.16℃; visible light;
3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

3,3-diphenyl-2-(pyren-1-yl)-3H-benzo[f]chromene

3,3-diphenyl-2-(pyren-1-yl)-3H-benzo[f]chromene

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: N-Bromosuccinimide / water; dimethyl sulfoxide / 0.33 h / 20 °C
1.2: 2.5 h / Reflux
2.1: tetrakis(triphenylphosphine) palladium(0); sodium hydroxide / water; tetrahydrofuran / 15 h / Inert atmosphere; Reflux
View Scheme
3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

C41H26O

C41H26O

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: N-Bromosuccinimide / water; dimethyl sulfoxide / 0.33 h / 20 °C
1.2: 2.5 h / Reflux
2.1: tetrakis(triphenylphosphine) palladium(0); sodium hydroxide / water; tetrahydrofuran / 15 h / Inert atmosphere; Reflux
3.1: benzene / 24.84 °C / Irradiation
View Scheme
3,3-diphenyl-3H-naphtho[2,1-b]pyran
4222-20-2

3,3-diphenyl-3H-naphtho[2,1-b]pyran

1-[3,3-Diphenyl-prop-2-en-(E)-ylidene]-1H-naphthalen-2-one
194417-56-6

1-[3,3-Diphenyl-prop-2-en-(E)-ylidene]-1H-naphthalen-2-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: (2)H8-toluene / -73.16 °C / UV-irradiation
2: toluene / 24.84 °C / UV-irradiation
View Scheme

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