Invention Grant
- Patent Title: Process for the preparation of substituted phenylpropanones
- Patent Title (中): 制备取代苯丙酮的方法
-
Application No.: US14379013Application Date: 2012-02-28
-
Publication No.: US09073839B2Publication Date: 2015-07-07
- Inventor: Daniel Stierli , Harald Walter
- Applicant: Daniel Stierli , Harald Walter
- Applicant Address: CH Basel
- Assignee: Syngenta Participations AG
- Current Assignee: Syngenta Participations AG
- Current Assignee Address: CH Basel
- Agent R. Kody Jones
- International Application: PCT/EP2012/053371 WO 20120228
- International Announcement: WO2013/127441 WO 20130906
- Main IPC: C07C45/45
- IPC: C07C45/45 ; C07C45/51
Abstract:
The invention relates to a process for the preparation of a compound of formula (I) wherein the substituents are defined as in claim 1, which process comprises adding a compound of formula (II), wherein R1, R2 and R3 have the meanings as described under formula (I), in the presence of an inert organic solvent, to a mixture comprising an organic nitrite of formula (III) R4-O—N═O, wherein R4 is C1-C8alkyl, a compound of formula (IV), and an inert organic solvent.
Public/Granted literature
- US20150031919A1 PROCESS FOR THE PREPARATION OF SUBSTITUTED PHENYLPROPANONES Public/Granted day:2015-01-29
Information query
