[EN] PROCESS FOR THE PREPARATION OF 4,5-DIHYDROXY-2-(4-METHYLBENZYL)ISOPHTHALONITRILE<br/>[FR] PROCÉDÉ DE PRÉPARATION DE 4,5-DIHYDROXY-2-(4-MÉTHYLBENZYL)ISOPHTALONITRILE
申请人:ORION CORP
公开号:WO2020094928A1
公开(公告)日:2020-05-14
The present disclosure relates to a process for the preparation of 4,5-dihydroxy-2-(4-methylbenzyl)isophthalonitrile, to use of a compound which is 2-methoxy-5-(4-methylbenzyl)phenol, (3-hydroxy-4-methoxyphenyl)(p-tolyl)methanone, 2-methoxy-5-(4-methylbenzoyl)phenyl 2-chloroacetate, 4-methylbenzoyl chloride, 2-methoxyphenyl 2-chloroacetate or 2-methoxyphenol in the preparation of 4,5-dihydroxy-2-(4-methylbenzyl)isophthalonitrile and to a compound which is 4-hydroxy-5-methoxy-2-(4-methylbenzyl)isophthalaldehyde dioxime or 4-hydroxy-5-methoxy-2-(4-methylbenzyl)isophthalaldehyde and use thereof in the preparation of 4,5-dihydroxy-2-(4-methylbenzyl)isophthalonitrile. 4,5-Dihydroxy-2-(4-methylbenzyl)isophthalonitrile is a COMTinhibitor.
本公开涉及一种制备4,5-二羟基-2-(4-甲基苯基)异苯二腈的过程,以及在制备4,5-二羟基-2-(4-甲基苯基)异苯二腈过程中使用2-甲氧基-5-(4-甲基苯基)酚、(3-羟基-4-甲氧基苯基)(对甲苯基)甲酮、2-甲氧基-5-(4-甲基苯甲酰基)苯基2-氯乙酸酯、4-甲基苯甲酰氯、2-甲氧基苯基2-氯乙酸酯或2-甲氧基苯酚的化合物,以及一种化合物,即4-羟基-5-甲氧基-2-(4-甲基苯基)异苯甲醛双肟或4-羟基-5-甲氧基-2-(4-甲基苯基)异苯甲醛及其在制备4,5-二羟基-2-(4-甲基苯基)异苯二腈中的使用。4,5-二羟基-2-(4-甲基苯基)异苯二腈是一种COMT抑制剂。