Stereoselective synthesis of rare (D and L) saccharides by a facile intramolecular rearrangement of hemiacetal heptanolactone alcohols
Abstract
The hemiacetal heptanolactone alcohols 2a, b, c and d undergo a facile acid catalysed, stereospecific intramolecular rearrangement to yield the rare D and L saccharides 3, 4, 5 and 6 respectively.