8207. d-Ribulose

Nomenclature

CAS number: 488-84-6
d-erythro-2-Pentulose; d-adonose; d-erythro-2-ketopentose.
C5H10O5; mol wt 150.13.
C 40.00%, H 6.71%, O 53.29%.

Description and references

Prepn from d-arabinose: Glatthaar, Reichstein, Helv. Chim. Acta 18, 80 (1935); from 2-keto-d-gluconic acid: Hall et al., Biochem. J. 60, 271 (1955); from d-fructose: P. M. Collins et al., J. Chem. Soc. Perkin Trans. 1 1980, 277. Stereoselective synthesis: M. Yamaguchi, T. Mukaiyama, Chem. Lett. 1981, 1005; K. Suzuki et al., ibid. 1529.

Chemical structure

Properties

Sweet syrup. [α]D24 -15° (c = 0.5 in water).

Derivative

Diphosphate.
C5H12O11P2; mol wt 310.09.
C 19.37%, H 3.90%, O 56.76%, P 19.98%.

Description and references

Prepn from d-ribose-5-phosphate: Horecker et al., Biochem. Prep. 6, 83 (1958).