Synthesis p. 25 - 28 (1989)
Update date:2022-09-26
Topics:
Martin, Robert
Demerseman, Pierre
Fries rearrangement of some dialkylphenyl propionates with titanium tetrachloride proves to be a convenient route to hindered dialkyl 2'-hydroxypropiophenones.The sequential use of soft titanium tetrachloride to perform the Fries rearrangement followed by hard aluminum chloride to achieve the elimination of a protecting tert-butyl group allows the synthesis of some previously unknown 3',6'- and 5',6'-dialkyl-2-hydroxypropiophenones.
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