Hk. Fun et al., A 2 1 SOLID-SOLUTION OF O-2,3,6-TRIDEOXY-D-ERYTHRO-HEX-2-ENONO-1,5-LACTONE AND ITS 6-BROMO ANALOG/, Acta crystallographica. Section C, Crystal structure communications, 51, 1995, pp. 2450-2453
The structure of an unusual 1:2 mixture of iso-morphous bromo and chlo
ro derivatives of a 1,5-lactone, 0.34C(6)H(7)BrO(3).0.66C(6)H(7)ClO(3)
, is reported, together with the absolute configuration of the molecul
es. The lactone ring adopts a conformation between sofa and half-chair
. The crystal structure is stabilized by O-H ... O hydrogen bonds betw
een the hydroxy and carbonyl groups.