作者:Steven D. Burke、David M. Armistead、Frank J. Schoenen、John M. Fevig
DOI:10.1016/s0040-4020(01)90568-x
日期:1986.1
A new method for the stereoselective synthesis of dihydropyrans of various substitution patterns is described, involving the Ireland ester enolate Claisen rearrangements of 6-alkenyl-1,4-dioxan-2-ones. The method has been applied to an enantioselective synthesis of the “left-wing” tetrahydropyran portion 2 of the ionophore antibiotic indanomycin (1). The synthetic sequence employed for the production