Journal of Organic Chemistry p. 4275 - 4277 (1980)
Update date:2022-08-11
Topics:
Node, Manabu
Nishide, Kiyoharu
Fuji, Kaoru
Fujita, Eiichi
Aliphatic and aromatic methyl ethers have been easily cleaved on treatment with a hard acid, aluminum halide, and a soft nucleophile, EtSH, to give parent alcohols and phenols, respectively.With compounds possessing both aliphatic and aromatic methyl ether groups, simultaneous demethylation of both types of ethers occurred.The ethereal carbon-oxygen bond in compounds possessing both ether and ester groups was selectively cleaved under mild conditions by using dichloromethane as a cosolvent.Acetoxyl and N-acetyl groups were shown to be stable to this reagent system, except for easy hydrolysis of aromatic acetoxyl groups under conditions of workup after the reaction.
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