... olefin is transformed into a 1,2-diol with osmiumtetroxide is a useful way of learning chemistry, but not nearly as effective has havingtime to think of what the reagent ... discussionpoints, where additional questions regarding mechanism, choice of reagents,stereochemistry, stereoselectivity etc. are listed. Below the discussion points there areusually ... with permission from Heterocycles, 1994,38, 243 ©1994 The Japan Institute of Heterocyclic Chemistry Discussion Points• The sequence from 2 to 3 introduces a tetrahydropyranyl (THP)...