EDDA-catalyzed rapid synthetic routes for biologically interesting polycycles bearing citrans and chalcones: the first total synthesis of sumadain A
作者:Xue Wang、Yong Rok Lee
DOI:10.1016/j.tet.2009.10.045
日期:2009.12
An efficient and concise syntheticroute for biologically interesting polycycles bearing citran and chalcone nuclei was developed starting from a variety of trihydroxybenzenes with substituents on the ring. The key strategies involved an ethylenediamine diacetate-catalyzed cyclization by a domino aldol-type/electrocyclization/H-shift/hetero Diels–Alder reaction of trihydroxybenzenes and citral or trans