Synthesis of Mono- and Bis(fluoroalkyl)pyrimidines from FARs, Fluorinated Acetoacetates, and Malononitrile Provides Easy Access to Novel High-Value Pyrimidine Scaffolds
作者:Etienne Schmitt、Bruno Commare、Armen Panossian、Jean-Pierre Vors、Sergiy Pazenok、Frédéric R. Leroux
DOI:10.1002/chem.201703982
日期:2018.1.26
A new strategy was developed using fluorinated acetoacetates, malononitrile, and fluoroalkyl amino reagents (FARs) to access unprecedented 4,6‐bis(fluoroalkyl)pyrimidine‐5‐carboxylates, their carboxylic acid analogues, and 4‐amino‐6‐(fluoroalkyl)pyrimidine‐5‐carbonitriles. An efficient cyclization step using suitable amidines was developed under microwave irradiation, providing the desired pyrimidines
METHOD FOR PRODUCING 3,5-BIS(FLUOROALKYL)-PYRAZOL-4-CARBOXYLIC ACID DERIVATIVES AND 3,5-BIS(FLUOROALKYL)-PYRAZOLES
申请人:BAYER CROPSCIENCE AG
公开号:US20150011779A1
公开(公告)日:2015-01-08
The present invention relates to novel 3,5-bis(fluoroalkyl)pyrazole-4-carboxylic acid derivatives and to a process for preparing 3,5-bis(fluoroalkyl)pyrazole-4-carboxylic acid derivatives and 3,5-bis(fluoroalkyl)pyrazoles.
Method for producing 3,5-bis(fluoroalkyl)-pyrazol-4-carboxylic acid derivatives and 3,5-bis(fluoroalkyl)-pyrazoles
申请人:BAYER CROPSCIENCE AG
公开号:US09309202B2
公开(公告)日:2016-04-12
The present invention relates to novel 3,5-bis(fluoroalkyl)pyrazole-4-carboxylic acid derivatives and to a process for preparing 3,5-bis(fluoroalkyl)pyrazole-4-carboxylic acid derivatives and 3,5-bis(fluoroalkyl)pyrazoles.