14252-21-2

Basic information

• Product Name: 2,2',6,6'-TETRAMETHYLBENZOPHENONE
• Synonyms: 2,2',6,6'-TETRAMETHYLBENZOPHENONE;2,6,2',6'-Tetramethylbenzophenone;Di-2,6-xylyl ketone
• CAS NO: 14252-21-2
• Molecular Formula: C₁₇H₁₈O
• Molecular Weight: 238.32
• Product Categories: Aromatic Benzophenones & Derivatives (substituted)
• Mol File: 14252-21-2.mol
• Article Data: 3

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 2,2',6,6'-TETRAMETHYLBENZOPHENONE(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2',6,6'-TETRAMETHYLBENZOPHENONE(14252-21-2)
• EPA Substance Registry System: 2,2',6,6'-TETRAMETHYLBENZOPHENONE(14252-21-2)

Safety Data

• Hazardous Substances Data: 14252-21-2(Hazardous Substances Data)

Upstream product

• 119-61-9 benzophenone 
• 75-24-1 trimethylaluminum 
• 632-46-2 2,6-dimethylbenzoic acid 
• 322474-74-8 Di(2,6-dimethylphenyl)carbene 
• 6857-67-6 1,1,2,2-tetrakis-(2,6-dimethyl-phenyl)-ethane 
• 71-43-2 benzene 
• 21900-37-8 2,6-dimethylbenzoyl chloride 
• 608-28-6 2,6-dimethyliodobenzene 
• 109-94-4 formic acid ethyl ester 
• 201230-82-2 carbon monoxide 

Downstream Products

• 854210-14-3 6,2',6',6'',2''',6'''-hexamethyl-2,2''-ethanediyl-di-benzophenone 
• 854624-11-6 [2-(2,6-dimethyl-benzoyl)-3-methyl-phenyl]-acetic acid 
• 10259-11-7 bis(2,6-dimethylphenyl)methane 
• 22004-65-5 α-(2,6-dimethylphenyl)-2,6-dimethylbenzenemethanol 

Relevant articles and documents

Spectroscopic and product studies of the effect of para substituents on the reactivity of triplet bis(2,6-dimethylphenyl)carbenes

A series of diazobis(2,6-dimethylphenyl)methanes (1) bearing eight symmetrical para di-substituents have been prepared and photolyzed to generate the corresponding carbenes (2). Product analysis studies showed that carbenes (2) decay mainly either by dimerization to form tetra(aryl)ethylene (3) or by attack at an o-methyl group to afford 1,2-dihydrobenzocyclobutenes (4) by way of o-quinodimethanes (6) in solution. The zero-field splitting parameters, D and E, were measured in matrices of different viscosities and are analyzed in terms of a sigma-dot (σ.) scale of spin-delocalization substituent constants. Fairly good correlation with σ. was found for the D values of 32 in its minimum energy geometry. Stabilities of 32 were estimated either by measuring the temperature at which the triplet carbene signals disappeared upon thawing the matrix or by analyzing the decay kinetics of 32 in a degassed solution at room temperature. They are examined in terms of the D values in matrix at low temperature and in terms of product distributions in solution at room temperature.