Abstract
A theoretical mechanism has been proposed for nucleophilic addition of ethylene glycol to 4-hydroxybut-2-ynenitrile on the basis of DFT quantum chemical calculations at the B3LYP/6-311++G(d,p) level of theory. The reaction catalyzed by alkali involves nucleophilic attack by 2-hydroxyethoxide ion on the β-carbon atom of the acetylenic alcohol with intermediate formation of vinylic carbanion which undergoes intramolecular cyclization with closure of 1,3-dioxolane ring.
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