以丙二酸二乙酯和苄氯为起始原料。通过改进拆分方法,成功地合成了光学纯cis,cis-2,2'-螺二氢茚-1,1’-二醇(e.e.≥99%)和2,2'-螺二氢茚-1,1’-二酮(e.e.≥98%),收率较高。
A resolution method for the synthesis of optical pure cis ,cis-2,2'-spiro-biindane-1, 1'-diol (e. e. ≥99% ) and 2,2'-spirobiindane-1, 1'-dione(e, e. ≥98% ) from diethylmalonate and benzyl chloride was reported. The yield was high.