Enantiomerically enriched triols were treated with trimethylorthoacetate and pyridinium toluene p-sulfonate to give a mixture of unrearranged THF and rearranged THP; treatment of the product mixture with toluene p-sulfonic acid equilibrated the mixture to the THP.
用
原乙酸三甲酯和
甲苯对
磺酸吡啶鎓处理对映体富集的三醇,得到未重排的 THF 和重排的 THP 的混合物;用
甲苯对
磺酸处理产物混合物使混合物平衡至THP。