Patent ID: 9376374
Filing Date: 2016-06-28
CPC Classification: C07C,C07D

Claim Text:
1. Process for preparing a compound of formula (I) in which X represents alkyl, halogen, alkoxy, haloalkyl or haloalkoxy, Y represents hydrogen, alkyl, alkoxy, halogen, haloalkyl or haloalkoxy, where only one of the radicals X or Y may represent haloalkyl or haloalkoxy, A represents C R′ represents alkyl, R″ represents alkyl, comprising initially converting a compound of formula (IIa) in the presence of a base into a compound of formula (IIb) in which M represents an alkali metal ion, an ion equivalent of an alkaline earth metal, an ion equivalent of aluminium or an ion equivalent of a transition metal or furthermore represents an ammonium ion where optionally one, two, three or all four hydrogen atoms may be replaced by identical or different radicals from the groups C n represents the number 1 or 2, and reacted further with a compound of formula (III) in which Hal represents halogen, to give a compound of formula (IV) in which X, Y, A and R′ have the meanings given above, and these are further cyclized to a compound of formula (IX) in which X, Y and A have the meanings given above, and these for their part are reacted with a compound of formula (V) in which R″ has the meanings given above.