“…From this point of view we found that an optically active copolymer was obtained by the radical copolymerization of S t with maleic anhydride (MAn) in 1-menthol7 and that optically active addition products were obtained by the radical reaction of cyclohexanone with 2-octene in l-menthol. 8 Recently we extended our concept to the asymmetric induction of the radical addition of thiols to ole fin^.^-"…”