C - Chemistry – Metallurgy – 07 – K
Patent
C - Chemistry, Metallurgy
07
K
C07K 5/075 (2006.01) C07K 5/072 (2006.01)
Patent
CA 2189558
Novel sweetening compound characterised in that it is N-[N-(3,3- dimethylbutyl)-L-.alpha.-aspartyl]-L-hexahydrophenylalanine 1-methyl ester of formula: Image and its method of preparation characterised in that an aqueous/alcohol solution of pH 4.5-5 of aspartame and 3,3-dimethylbutyraldehyde at room temperature is treated with hydrogen at a pressure of 3 bars in the presence of a catalyst based on platinum such as platinum black and platinum oxide and in that the product formed is purified by precipitation and filtration after evaporation in vacuo of the alcohol part of the solvent.
Nouveau composé édulcorant caractérisé en ce qu'il s'agit du N-[N-(3,3-diméthylbutyl)-L-.alpha.-aspartyl]-L-hexahydrophénylalanine 1-méthyl ester de formule (I) et son procédé de préparation caractérisé en ce que l'on traite une solution hydroalcoolique de pH 4,5-5 d'aspartame et de 3,3-diméthylbutyraldéhyde à température ambiante par de l'hydrogène à une pression de 3 bars en présence d'un catalyseur à base de platine comme le noir de platine et l'oxyde de platine et en ce que le produit formé est purifié par précipitation et filtration après élimination sous vide de la partie alcoolique du solvant.
Nofre Claude
Tinti Jean-Marie
Nofre Claude
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Tinti Jean-Marie
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