塩化アルミニウムによるキシレン-ホルムアルデヒド樹脂と<I>m</I>-キシレンの反応
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概要
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The reaction of xylene-formaldehyde-resin with <I>m</I>-xylene in presence of AlCl<SUB>3</SUB> as a catalyst have been investigated. The product is a viscous hydrocarbon consisting of dixylylmethane and its higher homologue. In the course of the reaction, the oxygen-containing groups such as methylol, acetal and ether type bonding in starting resin were eliminated and thus the resulted polymer decomposed considerably to the dixylylmethane by transalkylation with <I>m</I>-xylene. When other acid catalysts were used, the results were not the same. This reaction may be used for the preparation of dixylylmethane.
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