| Identification | Back Directory | [Name]
2'-Hydroxy-4'-methyl-5'-acetylacetophenone | [CAS]
16475-85-7 | [Synonyms]
2,4-Diacetyl-5-methylphenol
2'-Hydroxy-4'-methyl-5'-acetylacetophenone
Ethanone, 1,1'-(4-hydroxy-6-methyl-1,3-phenylene)bis- (9CI) | [Molecular Formula]
C11H12O3 | [MOL File]
16475-85-7.mol | [Molecular Weight]
192.21 |
| Hazard Information | Back Directory | [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
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