Camphor and isocamphanone in the synthesis of disubstituted acetylene alcohols, ethers, and esters
By treating 1-octyne and phenylacetylene with butyllithium the corresponding lithium acetylides were obtained that, with camphor and isocamphanone, provided along streospecific process 2-exo-(1-octynyl or 2-phenyl-1-ethynyl)-2-endo-lithiumoxy-5,5,6-trimet