| 摘要 |
PCT No. PCT/EP96/01890 Sec. 371 Date Nov. 10, 1997 Sec. 102(e) Date Nov. 10, 1997 PCT Filed May 7, 1996 PCT Pub. No. WO96/36592 PCT Pub. Date Nov. 21, 1996A process for preparing carboxylic acid derivatives of the formula I where X is OR2 or NH2, R1 is C1-C20-alkyl, Cl-C20-hydroxyalkyl, C3-C12-cycloalkyl, C4-C12-alkylcycloalkyl, C4-C12-cycloalkylalkyl, C5-C20-alkylcycloalkylalkyl, aryl, C7-C20-aralkyl, C7-C20-alkylaryl, a heteroaliphatic or heteroaromatic ring with 5 to 8 carbon atoms and R2 is C1-C20-alkyl, from carbonitriles of the formula IIR1-C 3BOND N(II),where R1 has the abovementioned meanings, and alcohols of the formula IIIR2-OH(III),where R2 has the abovementioned meanings, at from 50 to 300 DEG C. under from 0.1 to 350 bar in the presence of a heterogeneous catalyst, wherein the reaction is carried out in liquid phase. |
