2'-Hydroxy-4'-methyl-5'-acetylacetophenone

CAS No.
16475-85-7
Chemical Name:
2'-Hydroxy-4'-methyl-5'-acetylacetophenone
Synonyms
2,4-Diacetyl-5-methylphenol;2'-Hydroxy-4'-methyl-5'-acetylacetophenone;Ethanone, 1,1'-(4-hydroxy-6-methyl-1,3-phenylene)bis- (9CI)
CBNumber:
CB22156585
Molecular Formula:
C11H12O3
Molecular Weight:
192.21
MDL Number:
MOL File:
16475-85-7.mol

2'-Hydroxy-4'-methyl-5'-acetylacetophenone Properties

Melting point 108°C

2'-Hydroxy-4'-methyl-5'-acetylacetophenone Chemical Properties,Uses,Production

Preparation

Preparation by cyclization of 1,1,3,3-tetraacetylpropene (formerly so called methenylbisacetylacetone) (SM) (m.p. 117–118°)
, ? by adding a solution of SM (1 mol) in benzene to a sodium methoxide (4 mol)
or magnesium methoxide (4 mol) solution in methanol and set aside for 24 h (quantitative yields)
; ? on heating of its potassium salt in alcoholic solution for 6–8 h at reflux. SM was prepared by treatment of ethoxymethyleneacetylacetone (m.p. 140–142°) with the potassium salt of acetylacetone in ethanol
.

2'-Hydroxy-4'-methyl-5'-acetylacetophenone Preparation Products And Raw materials

Raw materials

Preparation Products

2,4-Diacetyl-5-methylphenol 2'-Hydroxy-4'-methyl-5'-acetylacetophenone Ethanone, 1,1'-(4-hydroxy-6-methyl-1,3-phenylene)bis- (9CI) 16475-85-7