| 摘要 |
The invention relates to a method for producing toluol derivatives of formul a (I), in which R1, R2, and R3 independently of one another represent hydrogen , halogen, C1-C6 alkyl, hydroxyl or C1-C6 alkoxy. Said derivatives are produce d by the hydrogenation of benzaldehydes and/or benzylalcohols of formula (II), IIa: X=CHO X=CH[OC1-C6 alkyl]2, IIb: X=CH2-OH X=CH2OC1-C6 alkyl with hydroge n in the presence of a catalyst, which is defined in more detail in the description. |
