A series of new octahydro-1, 1'-binaphthyl derivatives, namely ( R )-( + )-2-( N , N-dialkylamino)-2'-hydroxy-5, 5' , 6, 6' , 7 ,7' ,8,8'-octahydro-1,1'-binaphthyis (7,9), have been synthesized. Their asymmetric induction for enantioselectiuve addition of Et2 Zn to benzaldehyde was examined and it was found that ( R )-( + )-2-( N- cyclohexyl-N-methylamino)-2'-hydroxy-5,5' ,6,6',7,7', 8, 8'-octahydro- 1,1'binaphthyl(9c) exhibited the best asymmetric induction among the ligands prepared, up to 55% ee of 1-phenylpropanol being obtained.