PHOSPHINES SULFONEES ASYMETRIQUES V.ACINETIQUE DE SULFONATION DES PHOSPHINES
- 1 July 1990
- journal article
- research article
- Published by Taylor & Francis in Phosphorus, Sulfur, and Silicon and the Related Elements
- Vol. 53 (1-4) , 239-251
- https://doi.org/10.1080/10426509008038032
Abstract
La sulfonation de diphosphines de type-1,2, 1–3 et 1–4 (dppe, dppp, dppb) est ttudite. II est montré que la sulfonation est plus rapide pour les diphosphines-1,4 que pour les diphosphines-1,3 et 1,2. Les conditions permettant d'accéder à la tétrasulfonation sont précisées, ainsi que celles conduisant à un mélange riche en phosphées disulfoées. Cette étude a été étendue aux diphosphines chirales (Cyclobutanediop. BDPP, Chiraphos). The sulfonation of 1,2, -1,3 and -1,4 diphosphines (dppe, dppp, dppb) is studied. It is shown that the sulfonation is faster for 1,4-diphosphines than for -1,3 and -1,2 diphosphines. The conditions affording the tetrasulfonation are described, and also those allowing the obtention of a mixture containing large amounts of disulfonated diphosphines. This study is extended to chiral diphosphines (Cyclobutanediop, BDPP, Chiraphos).Keywords
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