ON THE POSITIONAL REACTIVITY ORDER IN THE SULFONATION OF BIPHENYL ANDA SERIES OF OXY DERIVATIVES

Authors
CERFONTAIN H ZOU YS BAKKER BH
Citation
H. Cerfontain et al., ON THE POSITIONAL REACTIVITY ORDER IN THE SULFONATION OF BIPHENYL ANDA SERIES OF OXY DERIVATIVES, Phosphorus, sulfur and silicon and the related elements, 92(1-4), 1994, pp. 231-237
Citations number
10
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Phosphorus, sulfur and silicon and the related elements → ACNP
ISSN journal
10426507
Volume
92
Issue
1-4
Year of publication
1994
Pages
231 - 237
Database
ISI
SICI code
1042-6507(1994)92:1-4<231:OTPROI>2.0.ZU;2-K
Abstract
The sulfonation of biphenyl (1) and its 2- and 4-methoxy, 3,3'- and 4, 4'-dimethoxy, and 4,4'-dimesyloxy derivatives with sulfur trioxide in dichloromethane as solvent at 22 degrees C has been studied. Sulfonati on of biphenyl leads to the subsequent formation of the 4-sulfonic aci d (4-S), 4,4'-S-2, 2,4,4'-S-3 and traces of 2,4,2',4'-S-4. The sulfona tion of the oxy substituted biphenyls also occurs successively in the one phenyl and then in the other. In case of the asymmetrical 2- and 4 -methoxybiphenyl the substitution starts in the anisyl moiety.