Method for reducing alkine compounds

Details Method for reducing alkine compounds Method for reducing alkine compounds

C - Chemistry, Metallurgy

07

C

C07C 403/08 (2006.01) C07D 317/64 (2006.01)

Patent

CA 2577044

The invention relates to a method for producing cyclohexene derivatives of general formulae (I) or (II), by reducing alkine compounds of general formulae (III) or (IV), with a mixture of zinc and at least one ammonium salt of formula (V) as a reducing agent. In said formulae, the substituents R1 to R8 independently have the designation cited in the description. Said method is characterised in that the reducing agent contains between 0.3 and 0.49 mol of at least one ammonium salt of formula (V) per zinc mol.

L'invention concerne un procédé pour produire des dérivés de cyclohexène de formules générales (I) ou (II), par réduction de composés alcyne de formules générales (III) ou (IV), avec un mélange de zinc et d'au moins un sel d'ammonium de formule (V) comme agent réduction. Dans les formules, les substituants R1 à R8 ont indépendamment l'un de l'autre la signification indiquée dans la description. L'invention est caractérisée en ce que l'agent de réduction contient, par mole de zinc, 0,3 à 0,49 mole d'au moins un sel d'ammonium de formule (V).

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