Sulfonation and sulfation in reactions of C??methylated phenols and anisoles with sulfur trioxide. 4??Substituted phenyl hydrogen sulfates: Effective reagents for …
…, H Cerfontain, P de Wit
文献索引：Goossens, Hans D.; Lambrechts, Hans J. A.; Cerfontain, Hans; Wit, Peter de Recueil des Travaux Chimiques des Pays-Bas, 1988 , vol. 107, # 6 p. 426 - 430
Abstract The sulfation and sulfonation of the methyl-and dimethylphenols with 0.9 and 4.0 equiv. of SO 3 in nitromethane at 0 C have been studied. On using 0.9 equiv. of SO 3, 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 SO 3, the sulfonic acid product distributions are affected by the predominant initial formation and the subsequent ...
