Synthesis of biguanidines and triazines, and biguanidino-aluminium complexes as intermediates

US8759584B2 · kind B2 · utility

Assignee

• BAYER CROPSCIENCE AKTIENGESELLSCHAFT · DE

Inventor

• Mark James Ford · Nordenstadt, DE

Key dates

• Filing date: Nov 25, 2008
• Grant date: Jun 24, 2014
• Expiry date: Nov 25, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F5/069
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Compounds of formula (I) or salts thereof,in which R1, R2, R3, R4, R5, R6, X and Y are defined as in claim 1, can be prepared by a process characterized in that a compound of the formula (II) or a salt thereof,is reacted to a compound of the formula (III) or a salt thereof,and an aluminium(III) source, optionally, in the presence of a protic additive or solvent selected from the group consisting of alcohols or amines.The compounds (I) are suitable to be used for the preparation of heterocyclic compounds corresponding to (I) where the group Al(X)(Y) is replaced with an optionally substituted carbon atom, or s-triazine derivatives thereof.