Connective Synthesis of Polysubstituted Tetrahydropyrans by a Novel and Stereocontrolled Metallo-ene/Intramolecular Sakurai Cyclization Sequence
作者:Bernard Leroy、István E. Markó
DOI:10.1021/jo025899c
日期:2002.12.1
A novel methodology based upon the allylmetalation step followed by an Intramolecular Sakurai Cyclization (IMSC) provides an efficient access to a variety of tetrahydropyran derivatives. This new strategy nicely complements our initial protocol that embodied a tandem ene reaction/IMSC sequence. Both mono- and dihydroxy-tetrahydropyrans could be easily assembled with complete stereocontrol at the various chiral centers.
Concise and stereocontrolled synthesis of polysubstituted tetrahydropyrans
作者:István E Markó、Bernard Leroy
DOI:10.1016/s0040-4039(00)01179-5
日期:2000.9
A range of polysubstituted tetrahydropyrans can be readily assembled by a novel methodology involving a metallo-ene reaction coupled with an intramolecular Sakurai cyclisation (IMSC)