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PROCEDURE OF A STAGE FOR THE OBTAINING OF TOLUENE DERIVATIVES.

2025-06-21 07:113150下载
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A process for preparing toluene derivatives of the formula I where R1, R2 and R3 are, independently of one another, hydrogen, alkyl radicals, hydroxyl groups and/or alkoxy groups, comprises reacting the corresponding benzoic acids, benzoic esters or benzoic anhydrides with hydrogen in the presence of a catalyst.


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