Abstract: | Just by the introduction of isomerizable groups and successive 3,3] or 2,3] rearrangements, the diols 1 can be transformed into the new synthetic building blocks 2 . The conversion often proceeds with high stereoselectivity or even stereospecificity, and in some cases in a one-pot reaction. X, Y=NHCOCCl3, N3, P(O)Ph2, 4-SO2C6H4Me, S(O)Ar, SCOR. |