331824-59-0

Basic information

• Product Name: 4H-1-Benzopyran-4-one, 2-(2-bromophenyl)-
• CAS NO: 331824-59-0
• Molecular Formula: C15H9BrO2
• Molecular Weight: 301.139
• Mol File: 331824-59-0.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: 4H-1-Benzopyran-4-one, 2-(2-bromophenyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: 4H-1-Benzopyran-4-one, 2-(2-bromophenyl)-(331824-59-0)
• EPA Substance Registry System: 4H-1-Benzopyran-4-one, 2-(2-bromophenyl)-(331824-59-0)

Safety Data

• Hazardous Substances Data: 331824-59-0(Hazardous Substances Data)

Upstream product

• 1253197-94-2 2-(2-bromophenyl)-2H-chromene 
• 118-93-4 o-hydroxyacetophenone 
• 6630-33-7 ortho-bromobenzaldehyde 
• 1301225-11-5 1,3-bis-(2-bromophenyl)-propane-1,3-dione 
• 487-26-3 Flavanone 
• 55370-65-5 (E)-3-(2-bromophenyl)-1-(2'-hydroxyphenyl)prop-2-en-1-one 
• 7154-66-7 2-bromobenzoic acid chloride 
• 644973-64-8 2,3-dihydro-2-(2-bromophenyl)chromen-4-one 

Relevant articles and documents

An efficient oxidative conversion of 2-aryl-2H-chromenes to the corresponding flavones by tert-butylhydroperoxide and copper bromide

A simple and efficient method has been developed for the facile oxidation of chromenes to the corresponding flavones by tert-butylhydroperoxide (TBHP) in the presence of copper(II) bromide catalyst in toluene at 80 °C in a very short time. The reaction demonstrates excellent reactivity, functional group tolerance, and good to excellent yields without using conventional strong oxidizing agents.

Transition-metal-free intramolecular Ullmann-type O-arylation: Synthesis of chromone derivatives

(Chemical Equation Presented) Expect the upexpected: A transition-metal- free approach to access chromone derivatives has been developed. The intramolecular O-arylation of substituted 1-(2-haloaryl)-propane-1,3-diones in DMF in the presence of K2CO3 gave the corresponding target products in good to excellent yields (see scheme; DMF = N,N′- dimethylformamide).

Microwave enhanced palladium catalysed coupling reactions: A diversity-oriented synthesis approach to functionalised flavones

Microwave enhanced diversity-oriented synthesis (MEDOS) using palladium catalysed protocols is introduced as a powerful new strategy for the synthesis of systematically modified small molecules and is highlighted by application to functionalised flavones. The Royal Society of Chemistry 2006.