201-68-3

Basic information

• Product Name: Benzo[b]phenanthro[9,10-d]furan
• CAS NO: 201-68-3
• Molecular Formula: C₂₀H₁₂O
• Molecular Weight: 268.3087
• Mol File: 201-68-3.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 486.9°C at 760 mmHg
• Flash Point: 271.6°C
• Density: 1.285g/cm³
• Vapor Pressure: 3.71E-09mmHg at 25°C
• Refractive Index: 1.808
• CAS DataBase Reference: Benzo[b]phenanthro[9,10-d]furan(CAS DataBase Reference)
• NIST Chemistry Reference: Benzo[b]phenanthro[9,10-d]furan(201-68-3)
• EPA Substance Registry System: Benzo[b]phenanthro[9,10-d]furan(201-68-3)

Safety Data

• Hazardous Substances Data: 201-68-3(Hazardous Substances Data)

Upstream product

• 568598-78-7 (-)-menthoxyacetic acid 2-oxo-1,2,2-triphenylethyl ester 
• 568598-77-6 (R)-citronellic acid 2-oxo-1,2,2-triphenylethyl ester 
• 568598-79-8 (R)-O-acetylmandelic acid 2-oxo-1,2,2-triphenylethyl ester 
• 568598-76-5 hexanoic acid 2-oxo-1,2,2-triphenylethyl ester 
• 568598-80-1 3-methylbutanoic acid 2-oxo-1,2,2-triphenylethyl ester 
• 568598-75-4 propanoic acid 2-oxo-1,2,2-triphenylethyl ester 
• 925681-77-2 (S)-4-isobutyl-α-methylphenylacetic acid 2-oxo-1,2,2-triphenylethyl ester 
• 925681-79-4 diphenylacetic acid acid 2-oxo-1,2,2-triphenylethyl ester 
• 925681-78-3 O-acetylsalicylic acid acid 2-oxo-1,2,2-triphenylethyl ester 
• 615-42-9 1,2-Diiodobenzene 
• 484-17-3 9-Phenanthrol 
• 925681-80-7 adamantylacetic acid acid 2-oxo-1,2,2-triphenylethyl ester 

Relevant articles and documents

2-Hydroxy-1,2,2-triphenylethanone as an efficient photolabile protecting group for carboxylic acids

The synthesis is reported of 2-hydroxy-1,2,2-triphenylethanone esters of carboxylic acids by the reaction between 2-chloro-1,2,2-triphenylethanone and a carboxylic acid in the presence of silver carbonate and silver tetrafluoroborate. Photolysis of the esters occurs rapidly on irradiation with a medium-pressure mercury lamp through quartz or Pyrex to return the carboxylic acid. The side product of the photolysis is benzo[b]phenanthro[9,10-d]furan, formed through a tandem process involving initial generation of 2,3-diphenylbenzofuran, photochemical cyclisation and re-aromatisation by aerial oxidation.