ISOLATION AND X-RAY STRUCTURE CHARACTERIZATION OF (+)-ONONITOL FROM CHINESE CAESALPINIA CRISTAL

<正> The compound (+)-Ononitol was isolated from Chinese Caesalpinia Cristal and identified by X-ray structure analysis to be 4-0-methyl-myo-inositol-hydrate. C7H1406·H2O,Mr=212.2, triclinic, space group Pl,a=5.074 (1), b = 6.599(1), c = 7.750(1)A,α=106.02(1),β=93.47(1),γ= 109.09(2)°,V = 232.5 A3,Z=1, Dc=1.516 gcm-3, u(MoKa)=1.28 cm-1, R=0.034 for 1431 observed reflections. There is no intramolecular hydrogen bond in (+)-Ononitol, but intermolecular hydrogen bonds exist between water molecule and hydroxy group as well as between hydroxy groups.

ISOLATION AND X-RAY STRUCTURE CHARACTERIZATION OF (+)-ONONITOL FROM CHINESE CAESALPINIA CRISTAL

The compound (+)-Ononitol was isolated from Chinese Caesalpinia Cristal and identified by X-ray structure analysis to be 4-0-methyl-myo-inositol-hydrate. C7H1406·H2O,Mr=212.2, triclinic, space group Pl,a=5.074 (1), b = 6.599(1), c = 7.750(1)A,α=106.02(1),β=93.47(1),γ= 109.09(2)°,V = 232.5 A3,Z=1, Dc=1.516 gcm-3, u(MoKa)=1.28 cm-1, R=0.034 for 1431 observed reflections. There is no intramolecular hydrogen bond in (+)-Ononitol, but intermolecular hydrogen bonds exist between water molecule and hydroxy group as well as between hydroxy groups.