Effects of Various Substances on the Anhydrous Aluminum Chloride or Allied Catalyst IV : Effects of Various Metals and Inorganic Salts on the Aluminum Chloride or Ferric Chloride for the Isomerization of α-bromonaphthalene to β-compound

摘要

In the preceding papers it was shown that considerably available results were obtained by the addition of many sorts of metals or inorganic salts to the AICl_3 or FeCl_3 as the calalyst for the reaction of ketone-synthesis, the polymerization of olefins and the alkylation of benzene with alkyl chlorides respepectively. Now the similar studies on the isomerization of α-bromonaphtalene to β-compound with AlCl_3 or FeCl_3 are carried out. The results obtained are given in the following summary. (I) Predetermining the regular relation between each β-compound content in monobrom-onaphthalene mixtures and their density or melting point, respective degree of isomerization might be presumed depending on such physical constant of purified reaction products. (II) Many sorts of metals and few inorganic salts gave the positive effects using the definite quantities of them namely half mol or half weight of each catalyst, but no enhanced effect with variation of their quantities was checked. (III) These results roughly resembled with the outline for the effect of various metals and inorganic salts in the preceding reports.