4H-3,1-Benzoxazine derivatives, methods of their preparation and their use in combating undesirable vegetation

Abstract

Abstract Translated from German Die vorliegende Erfindung betrifft neue 4H-3,1-Benzoxazinderivate der Formel I in der R 1 , R 2 und Y die in der Beschreibung genannten Bedeutungen haben, Verfahren zu ihrer Herstellung, Herbizide, die diese 4H-3,1-Benzoxazinderivate als Wirkstoffe enthalten, sowie neue substituierte Benzoylhalogenide, die als Ausgangsstoffe zur Herstellung von 4H-3,1-Benzoxazinderivaten der Formel dienen. The present invention relates to novel 4H-3,1-benzoxazine derivatives of the formula I. in which R 1 , R 2 and Y have the meanings given in the description, processes for their preparation, herbicides which contain these 4H-3,1-benzoxazine derivatives as active ingredients, and also novel substituted benzoyl halides which are used as starting materials for the preparation of 4H- 3,1-Benzoxazine derivatives of the formula are used.

Inventors

• 👤 Gerhard Dr. Hamprecht
• 👤 Bruno Dr. Dipl.-Landwirt Wuerzer

Bibliographic Details