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Sonochemical reformatsky reactions of α-bromoesters with sym-(keto)dibenzo-16-crown-5

✍ Scribed by Nathan A. Ross; Richard A. Bartsch

Book ID: 102337930
Publisher: Journal of Heterocyclic Chemistry
Year: 2001
Tongue: English
Weight: 31 KB
Volume: 38
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570380603

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✦ Synopsis

Abstract

Reactions of sym‐(keto)dibenzo‐16‐crown‐5 with ethyl α‐bromoesters, zinc dust and iodine in dioxane and/or tetrahydrofuran under irradiation by high intensity ultrasound (HIU) provide β‐hydroxy lariat ether esters in 79‐91% yields. HIU‐promoted Reformatsky reactions offer several advantages over customary thermal reaction conditions.

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