Process for preparing 2,2-difluoroethylamine derivatives, wherein compounds of the general formula (IV) are reduced to the corresponding 2,2-difluoroethylamine derivatives of the general formula (III), where the A radical is as defined in the description:
Novel Process for the Preparation of 4-Aminobut-2-enolides
申请人:LUI Norbert
公开号:US20110054182A1
公开(公告)日:2011-03-03
Process for the preparation of 4-aminobut-2-enolide compounds of the formula (I):
comprising reaction of a 4-(methylamino)furan-2(5H)-one compound of the formula (II)
with an amine of the formula (III)
in which R
1
and A have the definitions mentioned in the description, optionally in the presence of a Brønstedt acid.
NOVEL METHOD FOR PRODUCING ENAMINOCARBONYL COMPOUNDS
申请人:Lui Norbert
公开号:US20120016132A1
公开(公告)日:2012-01-19
The present invention relates to a process for the preparation of enaminocarbonyl compounds of the formula (I)
where compounds of the formula (II)
are reacted in the presence of a Brønsted acid to give compounds of the formula (I), and A, R1 and Z are as defined in the description, and also corresponding starting compounds which are used in the process according to the invention.
The present invention relates to novel substituted enaminocarbonyl compounds, to processes for their preparation and to their use for controlling animal pests, especially arthropods, in particular insects.
Process for preparing 2,2-difluoroethylamine derivatives, wherein compounds of the general formula (IV) are reduced to the corresponding 2,2-difluoroethylamine derivatives of the general formula (III), where the A radical is as defined in the description: