ONE-POT PROCESS FOR THE SYNTHESIS OF ILOPERIDONE
    2.
    发明申请
    ONE-POT PROCESS FOR THE SYNTHESIS OF ILOPERIDONE 审中-公开
    用于合成ILOPERIDONE的一步法

    公开(公告)号:US20130261308A1

    公开(公告)日:2013-10-03

    申请号:US13852234

    申请日:2013-03-28

    Applicant: PROCOS. S.P.A.

    CPC classification number: C07D413/04

    Abstract: Disclosed is a process for the synthesis of iloperidone starting from 4-hydroxy-3-methoxy acetophenone (acetovanillone), 1-chloro-3-bromo propane and 6-fluoro-3-(4-piperidinyl)-1,2-benzisoxazole hydrochloride, using a one-pot method. Said process is performed without any intermediate isolation, and is particularly advantageous from the environmental standpoint and in terms of yields, productivity and the purity of the product obtained, both in the reaction mixture and in the crystal isolated.

    Abstract translation: 公开了从4-羟基-3-甲氧基苯乙酮(乙腈),1-氯-3-溴丙烷和6-氟-3-(4-哌啶基)-1,2-苯并异恶唑盐酸盐合成起始的方法 ,使用一锅法。 所述方法在没有任何中间分离的情况下进行,并且在环境方面以及在反应混合物和分离的晶体中获得的产物的产率,生产率和纯度方面都是特别有利的。

    PROCESS FOR THE SYNTHESIS OF PIRFENIDONE
    3.
    发明申请

    公开(公告)号:US20180319747A1

    公开(公告)日:2018-11-08

    申请号:US15771050

    申请日:2016-10-27

    Applicant: PROCOS S.p.A.

    CPC classification number: C07D213/64

    Abstract: Disclosed is a process for the synthesis of Pirfenidone (1) from 5-methyl-2(1H)-pyridinone and chlorobenzene in the presence of a catalytic system consisting of a copper salt and an organic ligand, in the presence of a base. The process exploits the high efficiency of the catalytic system consisting of copper(I) salt and an organic ligand in the presence of an inorganic base in the N-amidation reaction of chlorobenzene, a cheap reagent also usable as solvent in this case; reaction conditions at high temperatures, at atmosphere pressure or higher, produce a reaction with good yields.

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