5,7-bis(1,1-dimethylethyl)-3-phenyl-(3H)-benzofuran-2-one

Modify Date: 2024-05-12 00:16:35

5,7-bis(1,1-dimethylethyl)-3-phenyl-(3H)-benzofuran-2-one Structure
5,7-bis(1,1-dimethylethyl)-3-phenyl-(3H)-benzofuran-2-one structure
Common Name 5,7-bis(1,1-dimethylethyl)-3-phenyl-(3H)-benzofuran-2-one
CAS Number 66737-86-8 Molecular Weight 322.44100
Density 1.061g/cm3 Boiling Point 369.8ºC at 760 mmHg
Molecular Formula C22H26O2 Melting Point N/A
MSDS N/A Flash Point 154.9ºC

 Names

Name 5,7-ditert-butyl-3-phenyl-3H-1-benzofuran-2-one
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.061g/cm3
Boiling Point 369.8ºC at 760 mmHg
Molecular Formula C22H26O2
Molecular Weight 322.44100
Flash Point 154.9ºC
Exact Mass 322.19300
PSA 26.30000
LogP 5.33250
Index of Refraction 1.55

 Safety Information

HS Code 2932209090

 Synthetic Route

~86%

5,7-bis(1,1-dimethylethyl)-3-phenyl-(3H)-benzofuran-2-one Structure

5,7-bis(1,1-dim...

CAS#:66737-86-8

Literature: Ciba Specialty Chemicals Holding Inc. Patent: EP1170296 A2, 2002 ; Location in patent: Page 39 ;

~62%

5,7-bis(1,1-dimethylethyl)-3-phenyl-(3H)-benzofuran-2-one Structure

5,7-bis(1,1-dim...

CAS#:66737-86-8

Literature: Ciba-Geigy Corporation Patent: US5607624 A1, 1997 ;

~%

5,7-bis(1,1-dimethylethyl)-3-phenyl-(3H)-benzofuran-2-one Structure

5,7-bis(1,1-dim...

CAS#:66737-86-8

Literature: Gerster, Michele; Wicki, Reto Synthesis, 2004 , # 2 p. 249 - 254

~61%

5,7-bis(1,1-dimethylethyl)-3-phenyl-(3H)-benzofuran-2-one Structure

5,7-bis(1,1-dim...

CAS#:66737-86-8

Literature: Nesvadba, Peter; Bugnon, Lucienne; Dubs, Paul; Evans, Samuel Synlett, 1999 , # SPEC. ISS. p. 863 - 864

~%

5,7-bis(1,1-dimethylethyl)-3-phenyl-(3H)-benzofuran-2-one Structure

5,7-bis(1,1-dim...

CAS#:66737-86-8

Literature: Gerster, Michele; Wicki, Reto Synthesis, 2004 , # 2 p. 249 - 254

~%

5,7-bis(1,1-dimethylethyl)-3-phenyl-(3H)-benzofuran-2-one Structure

5,7-bis(1,1-dim...

CAS#:66737-86-8

Literature: Gerster, Michele; Wicki, Reto Synthesis, 2004 , # 2 p. 249 - 254

 Customs

HS Code 2932209090
Summary 2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

5,7-di-tert-butyl-3-phenyl-2-coumaranone
EINECS 266-468-5
5,7-di-tert-butyl-3-phenyl-3H-benzofuran-2-one
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