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    • 10. 发明授权
    • Preparation of 4-haloalkylnicotinamides
    • 制备4-卤代烷基烟酰胺
    • US07317105B2
    • 2008-01-08
    • US10515507
    • 2003-05-09
    • Sergiy Pazenok
    • Sergiy Pazenok
    • C07D213/08
    • C07D213/82
    • The invention relates to a method for producing 4-haloalkylnicotinamides having the formula (I): wherein R1 is (C1-C4)haloalky, comprising subjecting one or more 3-((C1-C4)haloalkyl-3-oxo-1-alkenylamino)nitriles of the formula (II), (III) or (IV): R1—C(O)—CH═CH—NH—CH═CH—CN  (II) R1—C(O)—CH═CH—NH—CH(ZR2)—CH2—CN  (III) R1—C(O)—CH═CH—NH—CH(Hal)—CH2—CN  (IV) where R1 is as defined above, R2 is the same or different and is (C1-C6)-alkyl and Z is the same or different and is O, S or NR1, to a ring-closing reaction and simultaneous hydrolysis in the presence of a strong acid.
    • 本发明涉及一种制备具有式(I)的4-卤代烷基烟酰胺的方法:其中R 1是(C 1 -C 4 - ) 包括使式(II)的一种或多种3 - ((C 1 -C 4 -C 4)卤代烷基-3-氧代-1-烯基氨基)腈,( III)或(IV):<?in-line-formula description =“In-line Formulas”end =“lead”?> R 1 -C(O)-CH-CH-NH- CH-CH-CN(II)<?in-line-formula description =“In-line Formulas”end =“tail”?> <?in-line-formula description =“In-line Formulas”end =“lead” (O)-CH-CH-NH-CH(ZR 2) - CH 2 -CN(III) <?in-line-formula description =“In-line Formulas”end =“tail”?> <?in-line-formula description =“In-line Formulas”end =“lead”?> R < -C(O)-CH-CH-NH-CH(Hal)-CH 2 -CN(IV)<β在线公式描述=“在线式”末端 =“尾”→其中R 1如上所定义,R 2相同或不同,为(C 1 -C 3 - C 1-6烷基,Z相同或不同 并且为O,S或NR 1至闭环反应,并在强酸存在下同时水解。