#$%^&*AU2012202896A120120607.pdf#####C.\NRPonblDCORE J28741_. DOC-1605/012I ABSTRACT The present invention relates to a process for the preparation of compounds of formula (1) wherein R1 and R2 are each independently of the other hydrogen or C-C 5alkyl and R3 is CF3 or CF2H by a) reaction of a compound of formula (II) wherein R1 and R2 are as defined for formula (1), with at least one reducing agent to form a compound of formula (lll) wherein R1 and R2 are as defined for formula (1), and b) reaction of that compound with at least one reducing agent to form a compound of formula (IV) wherein R1 and R2 are as defined for formula (1), and (c) reaction of that compound with a compound of formula (V) wherein Q is chlorine, fluorine, bromine, iodine, hydroxyl or C-C 6alkoxy and R3 is as defined for formula (1), to form the compound of formula (1) and to novel intermediates for use in that process.
