Invention Grant
- Patent Title: Process for the production of substituted bromobenzenes
- Patent Title (中): 制备取代溴苯的方法
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Application No.: US12446793Application Date: 2007-10-08
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Publication No.: US08088960B2Publication Date: 2012-01-03
- Inventor: Beat Jau , Colin Ellis , Linhua Wang
- Applicant: Beat Jau , Colin Ellis , Linhua Wang
- Applicant Address: US NC Greensboro
- Assignee: Syngenta Crop Protection LLC
- Current Assignee: Syngenta Crop Protection LLC
- Current Assignee Address: US NC Greensboro
- Agent Rebecca Howard
- Priority: EP06022279 20061025
- International Application: PCT/EP2007/008697 WO 20071008
- International Announcement: WO2008/049507 WO 20080502
- Main IPC: C07C17/00
- IPC: C07C17/00 ; C07C22/00
Abstract:
The present invention relates to a process for the production of compounds of formula (I) wherein X is fluoro, chloro, bromo or iodo and n is 1, 2, 3 or 4, which process comprises reacting a compound of formula (II) wherein the substituents are as defined for formula (I), with inorganic nitrite in an acidic aqueous medium in the presence of bromide and a copper catalyst and wherein the process is carried out as a one-pot reaction.
Public/Granted literature
- US20110065968A1 PROCESS FOR THE PRODUCTION OF SUBSTITUTED BROMOBENZENES Public/Granted day:2011-03-17
Information query
