JBC, Vol. 250, Issue 17, 6817-6821, Sep, 1975
The synthesis of 3-deoxyheptulosonic acid 7-phosphate
K. M. Herrmann and M. D. Poling
3-Deoxyheptulosonic acid 7-phosphate was obtained by a one-step chemical
synthesis through condensation of oxalacetate with erythrose 4-phosphate.
This reaction occurs at measurable rates only in the presence of a metal
ion; Co2+ and Ni2+ are the most effective catalysts. The Co2+ catalyzed
condensation of oxalacetate and erythrose 4-phosphate proceeds at room
temperature and neutral pH. Since erythrose 4-phosphate can be replaced by
any free aldehyde tested thus far, this type of a homogeneous catalysis
opens new synthetic routes to alpha-keto-gamma-hydroxy-fatty acids and
their derivatives.