Dalton transactions

Modified procedure for improved synthesis of some octameric silsesquioxanes via hydrolytic polycondenzation in the presence of Amberlite ion-exchange resins

EO Dare, LK Liu, J Peng

Index: Dare, Enock O.; Liu, Ling-Kang; Peng, James Dalton Transactions, 2006 , # 30 p. 3668 - 3671

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Citation Number: 14

Abstract

Practical alternative procedures are described for the syntheses of octavinylsilsesquioxane 1, octaphenylsilesquioxane and octabenzylsilsesquioxane. The hydrolytic polycondensation of RSiX3 (R= CH2CH–, C6H5–or C6H5CH2–; X= Cl, OCH3, or OC2H5) in the presence of solid acid or base Amberlite ion-exchange resin gave improved yields of the corresponding octameric oligosilsesquioxanes. Repetitive usage of the Amberlite resin as the hydrolysis ...