申请人:Ciba Specialty Chemicals Water Treatments Ltd.
公开号:US06506939B1
公开(公告)日:2003-01-14
A process for the preparation of a mixture comprising a compound of formula (1) and a compound of formula (2)
wherein R1 is an optionally substituted C1-20 alkyl, optionally substituted C3-4 alkenyl, optionally substituted C5-7 cycloalkyl or optionally substituted benzyl, R2 is an optionally substituted C1-20 alkyl, optionally substituted C3-4 alkenyl or optionally substituted C5-7 cycloalkyl, A is either S or NR3, R3 is an optionally substituted C1-20 alkyl, optionally substituted C3-4 alkenyl or optionally substituted C5-7 cycloalkyl, or R2 and R3 together form a 5-7 membered ring which can contain an oxygen atom, R4 is hydrogen or methyl, R5 is an optionally substituted C1-20 alkyl, optionally substituted C3-4 alkenyl, optionally substituted C5-7 cycloalkyl or optionally substituted benzyl and, R6 is hydrogen or an optionally substituted C1-20 alkyl, optionally substituted C3-4 alkenyl or optionally substituted C5-7 cycloalkyl, or R5 and R6 together form a 5-7 membered ring which can contain an oxygen atom, which comprises reacting in an alkaline or base medium a compound of formula (3)
wherein X− is an anion, R1, R2, R3, R4, R5 and R6 have the same meaning as above, A+ is S+ or N+R3.
一种制备化合物(1)和化合物(2)混合物的方法,其中R1是可选取代的C1-20烷基,可选取代的C3-4烯基,可选取代的C5-7环烷基或可选取代的苄基,R2是可选取代的C1-20烷基,可选取代的C3-4烯基或可选取代的C5-7环烷基,A为S或NR3,R3是可选取代的C1-20烷基,可选取代的C3-4烯基或可选取代的C5-7环烷基,或R2和R3共同形成一个可包含氧原子的5-7环,R4为氢或甲基,R5是可选取代的C1-20烷基,可选取代的C3-4烯基,可选取代的C5-7环烷基或可选取代的苄基,R6为氢或可选取代的C1-20烷基,可选取代的C3-4烯基或可选取代的C5-7环烷基,或R5和R6共同形成一个可包含氧原子的5-7环,包括在碱性或碱性介质中反应式(3)的化合物,其中X-是阴离子,R1、R2、R3、R4、R5和R6的含义与上述相同,A+为S+或N+R3。