Formation of Chelated Counteranions Using Lewis Acidic Diboranes: Relevance to Isobutene Polymerization
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The reactions of chelating diboranes with PhCMe2Cl and related initiators were studied by variable-temperature NMR spectroscopy. Although thermally stable ion-pairs featuring weakly coodinating anions (WCA) are formed, isobutene polymerization is complicated by the tendency of these WCA to act as hindered bases toward Brønsted acidic chain ends.
创建时间：
2007-11-05
