Abstract
In this paper, a microwave assisted one-pot three-component aza-Diels–Alder reaction to synthesis 1-[2-(4-benzoyloxy)ethyl]-3-methylimidazolium tetrafluoroborate-bound tetrahydro- quinolines was developed by using 1-[2-(4-benzoyloxy)ethyl]-3- methylimidazolium tetrafluoro- borate bound aldehyde as soluble support. After cleavage, the target compounds were obtained in good yields and purity, and the ionic liquid might be recovered and used in next cycle. Under the microwave irradiation, the two steps of cyclocondensation and cleavage completed in only about 15 min.
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