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The mechanism of phenylselenoetherification of 6-methylhept-5-en-2-ol in the presence of some bases (pyridine, triethylamine, quinoline, 2,2'-bipyridine) as catalysts was examined through kinetic study of the cyclization under pseudo-first order conditions, by UV-VIS spectrophotometry. The obtained values for the rate constants show that there is a good agreement between those constants and the basicity of the catalyst. The fastest reaction is the one using the strongest base (triethylamine) and the smallest rate constant corresponded to the use of the weakest base as catalyst (2, 2'-bipyridine).

Based catalyzed phenylselenoetherification of 6-methyl- hept-5-en-2-ol