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2005
Ring opening reactions
O 0132
Bi(III) Halides as Efficient Catalysts for the O-Acylative Cleavage of TetrahydroAn Expeditious Entry to Tetralins. — A mild, high-yielding, regioselective
35- 044 furans:
methodology for the O-acylative cleavage of tetrahydrofurans uses organic acid halides
and catalytic amount Bi(III) halides. Acid chlorides possessing an ethereal function in
α-position fail to undergo the expected cleavage reaction. Additionally, the potential of
Bi(III) catalysis for O-acylative cleavage/intramolecular alkylation to give tetralin
(VIII) is demonstrated. — (COLES, S. J.; COSTELLO*, J. F.; DRAFFIN, W. N.;
HURSTHOUSE, M. B.; PAVER, S. P.; Tetrahedron 61 (2005) 18, 4447-4452; Dep.
Chem., Univ. West England, Bristol BS16 1QY, UK; Eng.) — Bartels
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