Diastereoselectivity in non-aldol aldol reactions: silyl triflate-promoted Payne rearrangements
作者:Michael E. Jung、Alexandra van den Heuvel
DOI:10.1016/s0040-4039(02)01890-7
日期:2002.11
The non-aldol aldol process exhibits diastereoselectivity such that one isomer of a secondary epoxy silylether gives only the expected ketone product while the other affords both ketone and aldehyde. We present evidence for a novelsilyl triflate-promoted Payne rearrangement of silyloxy epoxides, e.g. D3↔E3. Additional examples of the non-aldol aldol process are presented including cyclic examples