helical‐shaped fluorinated tetracyclic molecules were prepared by fluorocarbocyclization of prochiral alkenes. The development of a new class of chiral Selectfluor (1) proved instrumental in developing an asymmetric variant of this transformation. These novel chiral N‐F reagents are readily accessible by fluorine transfer from shelf‐stable N‐fluoropyridinium salts.
“ F”酸酯的扭曲:通过前手性烯烃的
氟碳环化制备了各种螺旋形的
氟化四环分子。新型手性Selectfluor(1)的开发被证明有助于开发这种转化的不对称变体。这些新颖的手性N-F试剂可通过从稳定的N-
氟吡啶鎓盐中转移
氟而容易地获得。