PROCESS OF SULFONATING 4-AMINOBENZONITRILES
    1.
    发明公开
    PROCESS OF SULFONATING 4-AMINOBENZONITRILES 审中-公开
    磺化4-氨基苯甲腈的方法

    公开(公告)号:EP1910280A2

    公开(公告)日:2008-04-16

    申请号:EP06762729.9

    申请日:2006-07-20

    申请人: SCHWARZ PHARMA AG

    摘要: A process of producing a compound of formula (3), wherein R1 is a C1-5 alkyl group, R2 is a halogen atom, a C1-5 alkyl group, a C2-5 alkenyl group, a C2-5 alkynyl group, a C1-5 alkyl group, a C1-5 alkoxy group, a nitro group, or a hydroxy group, wherein multiple R2 may be the same or may be different, and a is an integer of from 0 to 4, comprising reacting a compound of formula (2), wherein R2 and a are as defined above with a C1-5-alkanesulfonyl chloride or C1-5-alkanesulfonic acid anhydride followed by hydrolyzing an N,N-disulfonated derivative of compound (3) to the compound of formula (3).

    摘要翻译: 制备式(3)化合物的方法,其中R1为C1-5烷基,R2为卤原子,C1-5烷基,C2-5链烯基,C2-5炔基, C1-5烷基,C1-5烷氧基,硝基或羟基,其中多个R2可以相同或可以不同,并且a为0-4的整数,所述方法包括使化合物 其中R2和a如上所定义,其中R2和a与C1-5-链烷磺酰氯或C1-5-链烷磺酸酐反应,接着将化合物(3)的N,N-二磺化衍生物水解成式 3)。