A tellurium transposition route to allylic alcohols: overcoming some limitations of the Sharpless-Katsuki asymmetric epoxidation
…, RP Discordia, Y Zhang, CK Murphy…
文献索引:Dittmer, Donald C.; Discordia, Robert P.; Zhang, Yanzhi; Murphy, Christopher K.; Kumar, Archana; et al. Journal of Organic Chemistry, 1993 , vol. 58, # 3 p. 718 - 731
Good yields of enantiomeric allylic alcohols can be obtained in high enantiomeric excess (ee) by combining the Sharpless-Kabuki asymmetric epoxidation process (SAE) with tellurium chemistry. The advantages of the tellurium process are as follows:(1) the 50% yield limitation on the allylic alcohol in the Sharpless kinetic resolution (SKR) can be overcome;(2) allylic tertiary alcohols which are unsatisfactory substrates in the SKR can be obtained in ...