635724-03-7

Basic information

• Product Name: 4-hydroxyphenyl-bis(2-oxo-2H-cyclohepta[b]furan-3-yl)methane
• Synonyms: 4-hydroxyphenyl-bis(2-oxo-2H-cyclohepta[b]furan-3-yl)methane
• CAS NO: 635724-03-7
• Molecular Weight: 396.399
• Mol File: 635724-03-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4-hydroxyphenyl-bis(2-oxo-2H-cyclohepta[b]furan-3-yl)methane(CAS DataBase Reference)
• NIST Chemistry Reference: 4-hydroxyphenyl-bis(2-oxo-2H-cyclohepta[b]furan-3-yl)methane(635724-03-7)
• EPA Substance Registry System: 4-hydroxyphenyl-bis(2-oxo-2H-cyclohepta[b]furan-3-yl)methane(635724-03-7)

Safety Data

• Hazardous Substances Data: 635724-03-7(Hazardous Substances Data)

Upstream product

• 635723-97-6 α,α-bis(2-oxo-2H-cyclohepta[b]furan-3-yl)-1,4-benzoquinonemethide 
• 4481-35-0 cyclohepta[b]furan-2(2H)-one 
• 123-08-0 4-hydroxy-benzaldehyde 

Relevant articles and documents

Synthesis and Properties of α,α -Bis(heteroazulen-3-yl)-1,4-benzoquinonemethides

The synthesis and properties of a novel type of α,α -bis(heteroazulen-3-yl)-1,4-benzoquinonemethides 11a-f are studied. The synthetic method was based on a TFA-catalyzed electrophilic aromatic substitution on the heteroazulenes with 4-hydroxybenzaldehyde to afford the corresponding methane derivatives, followed by oxidative hydrogen abstraction with DDQ, and subsequent exchange of the counter-anion by using aq. HBF 4 or aq. HBF6 and neutralization. The polarization of 11a-f was evaluated by their 13C NMR and UV-vis spectral data. The thermodynamic stability of the conjugated acid of 11a-f was evaluated to be in the order 11a a values (a values. In CV measurements, the reduction waves of quinonemethides 11a-f were reversible, suggesting a stabilizing effect of heteroazulenes toward the radical and anion species. Moreover, quinonemethides 11a-f showed two oxidation waves, and that the first oxidation potentials (EIox) of 11a-c, which have two t-Bu groups, are reversible.