HO bromobicyclo [2.2. l] heptan-2-exo-o1 (3), the second major product. Presumably, endo attack on D is precluded for the same reasons given above (vide supra), while the delocalized bond in C shields that face which would also yield syn-7-bromobicyclo [2.2. l] heptan-2-endo-ol (6) as this material, too, is not found. It is interesting to speculate, nevertheless, that the small amount of syn-7-bromobicyclo [2.2. 1 lheptan-2-one (7) isolat, ...