1981 年 1981 巻 8 号 p. 1339-1341
Soft Brönsted acids such as phenols, naphthols or hydroxypyridines were found to catalyze the coupling reaction of 1-naphthol with 1-diazonio-2-naphthol-4-sulfonate. In contr ast, a hard acid such as acetic acid was not effective for the reaction. The kinetic data well agreed with the Brönsted equation k=1.3×1021 Ka0.83. Mechanism of the reaction is discussed.
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