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Autor:
Jamal Bousbaa, Alain Krief
Publikováno v:
Tetrahedron Letters. 38(35):6291-6294
1-Methoxy-benzyllithiums bearing suitably positioned C,C double bonds possess a high propensity to produce a five or a six membered cycle by carbocyclisation reaction. The reaction proceeds completely stereoselectively and produces a five membered cy
Autor:
Alain Krief, Jamal Bousbaa
Publikováno v:
Tetrahedron Letters. 38(35):6289-6290
Although 1-methoxy-1-methylseleno-toluene is efficiently metallated by KDA, the same compound as well as its higher homologues react with t -butyllithium producing 1-methoxy benzyllithiums via the C-Se bond cleavage. These species are efficiently alk