3H-Naphtho[2,1-b]pyran-3-one, 1,2-dihydro-1-phenyl-

Modify Date: 2025-09-10 18:52:29

3H-Naphtho[2,1-b]pyran-3-one, 1,2-dihydro-1-phenyl- Structure
3H-Naphtho[2,1-b]pyran-3-one, 1,2-dihydro-1-phenyl- structure
 Common Name 3H-Naphtho[2,1-b]pyran-3-one, 1,2-dihydro-1-phenyl-
CAS Number 5448-11-3 Molecular Weight 274.31300
Density 1.235g/cm3 Boiling Point 429.3ºC at 760 mmHg
Molecular Formula C19H14O2 Melting Point N/A
MSDS N/A Flash Point N/A

 Names

Name 1-phenyl-1,2-dihydrobenzo[f]chromen-3-one
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.235g/cm3
Boiling Point 429.3ºC at 760 mmHg
Molecular Formula C19H14O2
Molecular Weight 274.31300
Exact Mass 274.09900
PSA 26.30000
LogP 4.28080
Index of Refraction 1.664

 Synthetic Route

Cinnamic acid structure

Cinnamic acid

CAS#:621-82-9

2-Naphthol structure

2-Naphthol

CAS#:135-19-3

~80%

3H-Naphtho[2,1-b]pyran-3-one, 1,2-dihydro-1-phenyl- Structure

3H-Naphtho[2,1-...

CAS#:5448-11-3

Literature: Kamat, Durga P.; Tilve, Santosh G.; Kamat, Vijayendra P. Tetrahedron Letters, 2012 , vol. 53, # 33 p. 4469 - 4472
Meldrumic acid structure

Meldrumic acid

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Benzaldehyde structure

Benzaldehyde

CAS#:100-52-7

2-Naphthol structure

2-Naphthol

CAS#:135-19-3

~94%

3H-Naphtho[2,1-b]pyran-3-one, 1,2-dihydro-1-phenyl- Structure

3H-Naphtho[2,1-...

CAS#:5448-11-3

Literature: Gao, Shijay; Tsai, Chen Hsuan; Yao, Ching-Fa Synlett, 2009 , # 6 p. 949 - 954
Ciprofloxacin Hydrochloride structure

Ciprofloxacin H...

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2-Naphthol structure

2-Naphthol

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~82%

3H-Naphtho[2,1-b]pyran-3-one, 1,2-dihydro-1-phenyl- Structure

3H-Naphtho[2,1-...

CAS#:5448-11-3

Literature: Zhang, Zhen; Ma, Yuan; Zhao, Yufen Synlett, 2008 , # 7 p. 1091 - 1095
cinnamic acid naphthyl ester structure

cinnamic acid n...

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~%

3H-Naphtho[2,1-b]pyran-3-one, 1,2-dihydro-1-phenyl- Structure

3H-Naphtho[2,1-...

CAS#:5448-11-3

Literature: Kamat, Durga P.; Tilve, Santosh G.; Kamat, Vijayendra P. Tetrahedron Letters, 2012 , vol. 53, # 33 p. 4469 - 4472
Cinnamic acid structure

Cinnamic acid

CAS#:140-10-3

2-Naphthol structure

2-Naphthol

CAS#:135-19-3

~34%

3H-Naphtho[2,1-b]pyran-3-one, 1,2-dihydro-1-phenyl- Structure

3H-Naphtho[2,1-...

CAS#:5448-11-3

Literature: Neugebauer, Robert C.; Uchiechowska, Urszula; Meier, Rene; Hruby, Henning; Valkov, Vassil; Verdin, Eric; Sippl, Wolfgang; Jung, Manfred Journal of Medicinal Chemistry, 2008 , vol. 51, # 5 p. 1203 - 1213
phenylpropynal structure

phenylpropynal

CAS#:2579-22-8

2-Naphthol structure

2-Naphthol

CAS#:135-19-3

~%

3H-Naphtho[2,1-b]pyran-3-one, 1,2-dihydro-1-phenyl- Structure

3H-Naphtho[2,1-...

CAS#:5448-11-3

Literature: Kaeobamrung, Juthanat; Mahatthananchai, Jessada; Zheng, Pinguan; Bode, Jeffrey W. Journal of the American Chemical Society, 2010 , vol. 132, # 26 p. 8810 - 8812
3-benzylidene-1,5-dioxaspiro[5.5]undecane-2,4-dione structure

3-benzylidene-1...

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2-Naphthol structure

2-Naphthol

CAS#:135-19-3

~%

3H-Naphtho[2,1-b]pyran-3-one, 1,2-dihydro-1-phenyl- Structure

3H-Naphtho[2,1-...

CAS#:5448-11-3

Literature: Wang, Ji-Yu; Zhang, Hui; Liao, Yu-Hua; Yuan, Wei-Cheng; Feng, Yu-Jun; Zhang, Xiao-Mei Synlett, 2012 , vol. 23, # 5 p. 796 - 800
Cinnamic acid structure

Cinnamic acid

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Sulfuric acid structure

Sulfuric acid

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acetic acid structure

acetic acid

CAS#:64-19-7

2-Naphthol structure

2-Naphthol

CAS#:135-19-3

~%

Detail
Literature: Koelsch Journal of the American Chemical Society, 1936 , vol. 58, p. 1331

 Synonyms

1-phenyl-1,2-dihydro-benzo[f]chromen-3-one
1,2-dihydro-1-phenyl-3H-naphtho[2,1-b]pyran-3-one
1-phenylbenzo[f]chroman-3-one
1-Phenyl-1,2-dihydro-benzo[f]chromen-3-on
1-phenyl-1H-benzo[f]chromen-3(2H)-one
phenyl-1H-benzo[f]chromen-3-(2H)-one
3h-naphtho[2,1-b]pyran-3-one,1,2-dihydro-1-phenyl
5,6-benzo-4-phenyl-3,4-dihydrobenzopyran-2-one
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Chemsrc provides CAS#:5448-11-3 MSDS, density, melting point, boiling point, structure, etc. Its name is 3H-Naphtho[2,1-b]pyran-3-one, 1,2-dihydro-1-phenyl->> amp version: 3H-Naphtho[2,1-b]pyran-3-one, 1,2-dihydro-1-phenyl-

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