Lambrechts, Hans J. A.; Schaasberg-Nienhuis, Zwaan R. H.; Cerfontain, Hans, Journal of the Chemical Society. Perkin transactions II, 1985, p. 669 - 676
Sulfonation and sulfation in reactions of <i>C</i>
-methylated phenols and anisoles with sulfur trioxide. 4-Substituted phenyl hydrogen sulfates: Effective reagents for transsulfonation
作者:Hans D. Goossens、Hans J. A. Lambrechts、Hans Cerfontain、Peter de Wit
DOI:10.1002/recl.19881070606
日期:——
The sulfation and sulfonation of the methyl- and dimethylphenols with 0.9 and 4.0 equiv. of SO3 in nitromethane at 0°C have been studied. On using 0.9 equiv. of SO3, the sulfonic acid product distributions are determined by the ortho- and para-directing effect of the activating hydroxy substituent. In the reactions with 4.0 equiv. of SO3, the sulfonic acid product distributions are affected by the