会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 16. 发明授权
    • Process for the preparation of pyrazole carboxylic acid amides
    • 制备吡唑羧酸酰胺的方法
    • US08524915B2
    • 2013-09-03
    • US13642511
    • 2011-04-14
    • Florian SchlethThomas VettigerMichael RommelHans Tobler
    • Florian SchlethThomas VettigerMichael RommelHans Tobler
    • C07D231/10C07C25/18
    • C07D231/14C07C17/2635C07C17/30C07C17/354C07C25/24
    • The invention relates to a process for the preparation of a compound of formula (I), which process comprises a) reacting a compound of formula (II), wherein X is chloro or bromo, with an organometallic species to (III) reacting the halobenzyne of formula (III) so formed with (IV) wherein R1 and R2 are hydrogen or C1-C6alkyl; to (V), b) hydrogenating V in the presence of a metal catalyst to (VI), c) ozonising (VI) to (VII) d) converting (VII) in the presence of a phosphane and CCI4 or CHCI3 to (VIII) (VIII), and either e1) reacting VIII with NH3 in the presence of a catalyst to (IX) and f) reacting IX in the presence of a base with the compound of formula (X), to the compound of formula (I); or e2) reacting the compound of formula (VIII), in the presence of a solvent, a base, a copper catalyst and at least one ligand with (Xa), to the compound of formula (I).
    • 本发明涉及一种制备式(I)化合物的方法,该方法包括:使式(II)化合物(其中X为氯或溴)与有机金属物质反应,使(III)使卤代苯甲 (Ⅳ),其中R 1和R 2是氢或C 1 -C 6烷基; (V)中,b)在金属催化剂存在下将V氢化为(Ⅵ),c)臭氧化(Ⅵ)至(Ⅶ)d)在磷烷和CCI4或CHCl 3存在下将(Ⅶ)转化为 )(VIII),和e1)在催化剂存在下将VIII与NH 3反应至(IX),和f)使IX在碱的存在下与式(X)的化合物反应至式(I ); 或e2)使式(VIII)化合物在溶剂存在下,碱,铜催化剂和至少一种配体与(Xa)反应,得到式(I)化合物。