1,3-Asymmetric induction in the intramolecular [2+2] cycloaddition of alkene-keteniminium salts. Synthesis of (+)-gibberellic acid key intermediate
作者:Pil-Jong Shim、Hee-Doo Kim
DOI:10.1016/s0040-4039(98)02228-x
日期:1998.12
Optically active bicyclo[4.2.0]octan-7-ones were synthesized by stereoselective intramolecular [2+2] cycloaddition of alkene-keteniminium salt derived from L-glutamic acid, based on 1,3-asymmetric induction. Synthetic application toward (+)-gibberellic acid key intermediate was also described.
光学活性的双环[4.2.0] octan-7-ones是通过立体选择性的分子内[2 + 2]环加成衍生自L-谷氨酸的烯烃-酮亚胺盐,基于1,3-不对称诱导而合成的。还描述了对(+)-赤霉素关键中间体的合成应用。