sulfuric acid in ethylene glycol dimethyl ether 2 h; Ambient temperatureanalogous reactions with o- and p-methoxyphenols, reaction with Ac2O without phenols under the same conditions; Product distribution;
参考文献
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), , p. 303 - 306