专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

2. 发明公开

KR1020000052967A 질소화 방법 失效
标题翻译：硝化过程
公开(公告)号：KR1020000052967A
公开(公告)日：2000-08-25
申请号：KR1019997003841
申请日：1997-10-28
申请人： 신젠타 리미티드
发明人： 브라운스테펀마틴 , 먹스워디제임스피터 , 레논마틴 , 아써튼존히스코트 , 프리스틀리이안제프리그래샴
IPC分类号： C07B43/02
CPC分类号： C07C303/40 , C07B43/02 , C07C201/08 , C07C311/51 , C07C205/59
摘要： PURPOSE: Provided are a process for nitration and, in particular, a process for the nitration of aromatic and heteroaromatic compounds. The process is of particular use for nitrating diphenyl ethers to give compounds which are useful as herbicides or as intermediates in the synthesis of herbicides. CONSTITUTION: A compound has formula I: wherein R1 is hydrogen or C1 -C6 alkyl, C2 -C6 alkenyl or C2 -C6 alkynyl (any of which may optionally be substituted with one or more substituents selected from halogen and hydroxy) or COOR4, COR6, CONR4 R5 or CONHSO2 R4 ; R2 is hydrogen or halo; R3 is C1 -C4 alkyl or C2 -C4 alkenyl or C2 -C4 alkynyl (any of which may optionally be substituted with one or more halogen atoms) or halo; R4 and R5 independently represent hydrogen or C1 -C4 alkyl optionally substituted with one or more halogen atoms; and R6 is a halogen atom or a group R4.
摘要翻译：目的：提供硝化方法，特别是硝化芳族和杂芳族化合物的方法。该方法特别用于硝化二苯醚以得到可用作除草剂的化合物或作为除草剂合成中的中间体。组成：化合物具有式I：其中R 1是氢或C 1 -C 6烷基，C 2 -C 6链烯基或C 2 -C 6炔基（其中任何一个可以被一个或多个选自卤素和羟基的取代基取代）或COOR4，COR6 ，CONR4 R5或CONHSO2 R4; R2是氢或卤素; R 3是C 1 -C 4烷基或C 2 -C 4烯基或C 2 -C 4炔基（其中任何一个可以任选被一个或多个卤素原子取代）或卤素; R4和R5独立地表示氢或任选被一个或多个卤素原子取代的C 1 -C 4烷基; 并且R 6是卤素原子或基团R 4。

IPRDB

热门服务

关于我们

友情链接

联系方式