Abstract 1) The kinetics of the hydrolysis of δ-chlorovaleric and of ω-chloroheptanoic acids in an aqueous solution of their sodium salts has been studied. The reason for the difference between the activation entropies has been discussed. 2) The methods for the preparation of δ-valerolactone from δ-chlorovaleric acid have been established. 3) By the thermal decomposition of the polyester from ω-hydroxyheptanoic acid, the dimeric lactone of the acid has been prepared, and the formation of the monomeric lactone has also been ascertained.
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Kazuo Saotome (1964) studied this question.
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