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2005
Rearrangements
O 0140
Bismuth Triflate Catalyzed Fries Rearrangement of Aryl Acetates. — The title
is described for substituted naphthyl and phenyl acetates. The catalytic system
19- 052 reaction
is also effective for the direct ortho-acylation of 1-naphthol with acetyl chloride or acetic anhydride. However, O-acylation followed by Fries rearrangement cannot be ruled
out as Bi(OTf)3 is a known catalyst for the acylation of alcohols and phenols. —
(OLLEVIER*, T.; DESYROY, V.; ASIM, M.; BROCHU, M.-C.; Synlett 2004, 15,
2794-2796; Dep. Chim., Univ. Laval, Laval, Que. G1K 7P4, Can.; Eng.) — Steudel
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