摘要:
The present invention relates to a process for preparing a compound II or a composition comprising the compound II to a composition comprising succinimide and to a composition prepared by the process according to the invention.
摘要:
The invention relates to a process for preparing chiral imidazolidin-2-ones of the formula I in which R1 is C1-C8-alkyl, cyclohexyl, phenyl, a C1-C6-alkyl-, halo-, nitro-, C1-C6-alkoxy-, C1-C6-alkylmercapto- or CF3-substituted phenyl radical, naphthyl or a C1-C6-alkyl-, halo-, nitro-, C1-C6-alkoxy- or CF3-substituted naphthyl radical, R2 is C1-C8-alkyl, C2-C8-alkenyl, cyclohexyl, phenyl or a phenyl-C1-C6-alkyl radical which may be substituted by a nitro, C1-C6-alkoxy, methylenedioxy or CF3 radical, and R3 is C1-C12-alkyl, C2-C8-alkenyl, cyclohexyl, phenyl or a C1-C6-alkyl-, halo-, nitro-, C1-C6-alkoxy-, methylenedioxy-, dialkylamino- or CF3-substituted phenyl radical, by reacting a compound of the formula II or the salt thereof in which R1, R2 and R3 have the abovementioned meaning, with urea in the presence of an involatile ammonium salt, wherein the reaction is carried out in the presence of an aprotic polar organic solvent.
摘要:
The invention relates to an improved method for producing D-pantothenic acid and/or the salts thereof and to the use thereof as an additive for animal feed.
摘要:
The invention relates to a process for enriching trehalose from solutions, in which the enrichment is performed using an adsorbent, in which the adsorbent is an aluminosilicate. Preferably, the aluminosilicate is a zeolite. The invention further relates to the enrichment and purification of trehalose from fermentation broths, in particular as a coupled product of production by fermentation of other products of value.
摘要:
The invention relates to a process for preparing chiral imidazolidin-2-ones of the formula I in which R1 is C1-C8-alkyl, cyclohexyl, phenyl, a C1-C6-alkyl-, halo-, nitro-, C1-C6-alkoxy-, C1-C6-alkylmercapto- or CF3-substituted phenyl radical, naphthyl or a C1-C6-alkyl-, halo-, nitro-, C1-C6-alkoxy- or CF3-substituted naphthyl radical, R2 is C1-C8-alkyl, C2-C8-alkenyl, cyclohexyl, phenyl or a phenyl-C1-C6-alkyl radical which may be substituted by a nitro, C1-C6-alkoxy, methylenedioxy or CF3 radical, and R3 is C1-C12-alkyl, C2-C8-alkenyl, cyclohexyl, phenyl or a C1-C6-alkyl-, halo-, nitro-, C1-C6-alkoxy-, methylenedioxy-, dialkylamino- or CF3-substituted phenyl radical, by reacting a compound of the formula II or the salt thereof in which R1, R2 and R3 have the abovementioned meaning, with urea in the presence of an involatile ammonium salt, wherein the reaction is carried out in the presence of an aprotic polar organic solvent.
摘要:
The present invention relates to a process for producing methionine by fermentation, a process for isolating the methionine formed, the methionine-containing biomass produced in isolation, use thereof for producing a feedstuff or feed supplement, and also to the use of the isolated methionine for producing foodstuffs or feedstuffs or food supplements or feed supplements.
摘要:
The invention relates to a method for producing carotenoids or their precursors using genetically modified organisms of the Blakeslea genus. Said method comprises the following steps (i) transformation of at least one of the cells, (ii) optional homokaryotic conversion of the cells obtained in step (i) to produce cells, in which one or more genetic characteristics of the nuclei are all modified in an identical manner and said modification manifests itself in the cells, (iii) selection and reproduction of the genetically modified cell or cells, (iv) cultivation of the genetically modified cells, (v) preparation of the carotenoids produced by the genetically modified cells or the carotenoid precursor produced by said genetically modified cells. The invention also relates to carotenoids or their precursors produced according to said method and to the use thereof.
摘要:
The invention relates to a process for the purification of phosphonium salts in which a solution of the crude phosphonium salt is passed over a bed of a cation exchange resin in salt form or of an adsorber resin, the resin is washed with a polar protic solvent in the case of the cation exchange resin and with an electrolyte solution and a nonpolar solvent in the case of the adsorber resin, and the phosphonium salt is eluted from the cation exchange resin with an electrolyte solution or from the adsorber resin with a polar solvent.
摘要:
The present invention relates to a process for producing methionine by fermentation, a process for isolating the methionine formed, the methionine-containing biomass produced in isolation, use thereof for producing a feedstuff or feed supplement, and also to the use of the isolated methionine for producing foodstuffs or feedstuffs or food supplements or feed supplements.
摘要:
The invention relates to an improved method for producing D-pantothenic acid and/or the salts thereof and the use of said substance as an additive for animal food.