95926-84-4

Basic information

• Product Name: Methanone, [4-(2,2-dimethyl-1,1-diphenylpropyl)phenyl]phenyl-
• CAS NO: 95926-84-4
• Molecular Formula: C30H28O
• Molecular Weight: 404.552
• Mol File: 95926-84-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Methanone, [4-(2,2-dimethyl-1,1-diphenylpropyl)phenyl]phenyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Methanone, [4-(2,2-dimethyl-1,1-diphenylpropyl)phenyl]phenyl-(95926-84-4)
• EPA Substance Registry System: Methanone, [4-(2,2-dimethyl-1,1-diphenylpropyl)phenyl]phenyl-(95926-84-4)

Safety Data

• Hazardous Substances Data: 95926-84-4(Hazardous Substances Data)

Upstream product

• 88078-71-1 3-(tert-Butyldiphenylmethyl)-6-(tert-butylphenylmethylen)-1,4-cyclohexadien 
• 1657-60-9 2,2-dimethyl-1,1-diphenyl-propan-1-ol 
• 1657-59-6 tert-butyldiphenylsilyl chloride 
• 3282-30-2 pivaloyl chloride 

Relevant articles and documents

Sterically Hindered Free Radicals, XII. The Radical tert-Butyldiphenylmethyl, Its Dimer, and Their Autoxidation. A Reinvestigation

The radical Ph2C.-tBu (1) dimerizes giving reversibly the quinonoid derivative 3, and not the ethane-like 2 as reported in the literature.In equilibrium there are less radicals 1 than in the case of triphenylmethyl, ΔHdiss = 18.5 +/- 2 kcal/mol for 3.Both the radical 1 and its dimer 3 are rapidly oxidized by oxygen. 1 gives the dialkyl peroxide 6 which fragmentates already at 20 deg C mainly to benzophenone and tBu., 3 leads to the ketone 7, probably via the hydroperoxide 10. 3 rearranges catalysed by acid and by base as well via a 1,5-hydrogen migration forming the benzenoid derivative 4.Preparative and ESR details are given.