Sonochemical reformatsky reactions of α-bromoesters with sym-(keto)dibenzo-16-crown-5
作者:Nathan A. Ross、Richard A. Bartsch
DOI:10.1002/jhet.5570380603
日期:2001.11
Reactions of sym-(keto)dibenzo-16-crown-5 with ethyl α-bromoesters, zinc dust and iodine in dioxane and/or tetrahydrofuran underirradiation 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.