Chiral derivatives of titanium with terpene alcohols
摘要:
A series of substituted alkoxy compounds of titanium were prepared by reactions of titanium isopropylate with 1-menthol, 1-borneol, (+/-)-isoborneol, and (-)-trans-3-hydroxymyrtanol. The specific rotation of the alcoholates was shown to be an additive function of the number of the terpene ligands. For titanium bornylates, the optical activity is a linear function of the degree of substitution. For trans-3-hydroxymyrtanol derivatives, an inversion of the optical rotation angle is observed along with an additive dependence of the optical activity on the degree of substitution.