... No The volume of each solvent was f The same modification as ____ ._ ~ I _ I - _ - _ _ _ _ I I _l_l - - ... Commun. 1980,10,205. (21) Address correspondence to Department of Chemistry, Massa- chusetts Institute of Technology, Cambridge, MA 02139. Per HJ Carlsen, Tsutomu Katsuki Victor S. Martin, K. Barry Sharpless*21 Department of Chemistry Stanford University Stanford, California 94305 Received June 16, 1981