Zr-promoted 'pair'-selective and regioselective synthesis of penta-substituted benzene derivatives
Tetra-substituted zirconacyclopentadiene derivatives, obtainable via in situ generation of zirconacyclopropenes and their cyclic carbozirconation with alkynes, can be treated with alkynyllithiums to induce 1,2-migration accompanied by aromatization and pr
Dumond, Yves R.,Negishi, Ei-Ichi
p. 1345 - 1352
(2007/10/03)
Reduction of acetylenic compounds to (E)-olefins by alkali metals - An investigation of the scope
Efficient procedures have been developed for the stereospecific reduction by alkali metals of disubstituted acetylenes with long carbon chains. Acetylenes containing two or more (isolated) triple bonds are reduced considerably more easily than are monoyne
Brandsma, Lambert,Nieuwenhuizen, Willem F.,Zwikker, Jan W.,Maeeorg, Uno
p. 775 - 779
(2007/10/03)
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