title: 6-De-oxy-3,4-O-isopropyl-idene-2-C-methyl-l-galactono-1,5-lactone.
abstract: X-ray crystallography unequivocally confirmed the stereochemistry of the 2-C-methyl group in the title mol-ecule, C(10)H(16)O(5), in which the 1,5-lactone ring exists in a boat conformation. The absolute stereochemistry was determined by the use of d-ribose in the synthesis. The crystal exists as O-H⋯O hydrogen bonded chains of mol-ecules running parallel to the a axis with each mol-ecule acting as a donor and acceptor for one hydrogen bond.
authors: Sarah F
authors: SF
authors: Jenkinson
authors: Loren L
authors: LL
authors: Parry
authors: Francis X
authors: FX
authors: Wilson
authors: George W J
authors: GW
authors: Fleet
authors: David J
authors: DJ
authors: Watkin