Su Julius T, Goddard William A
Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA.
J Am Chem Soc. 2005 Oct 19;127(41):14146-7. doi: 10.1021/ja054446x.
A rearrangement of hypervalent bonds, or twisting, proves to be the rate-determining step in the 2-iodoxybenzoic acid (IBX) oxidation of alcohols. From this insight, derived from density functional theory calculations, we explain why IBX oxidizes large alcohols faster than small ones and propose a modification to the reagent predicted to make it more active.
高价键的重排,即扭转,被证明是2-碘酰基苯甲酸(IBX)氧化醇类反应中的速率决定步骤。基于密度泛函理论计算得出的这一见解,我们解释了为什么IBX氧化大分子醇比小分子醇更快,并提出了对该试剂的一种改进方法,预计可使其更具活性。