Patent ID: 8314268

Claim:
A process for the preparation of a compound of formula (I): wherein: R and R 1 form a 3 to 6 carbon atoms ring with the carbon atom to which they are linked; and R 3 represents one or more groups independently selected from: halogen selected from the group consisting of F, Cl, Br, and I; CF 3 ; C 3 -C 8 cycloalkyl optionally substituted with one or more C 1 -C 4 alkyl and/or oxo groups; phenyl optionally substituted with one or more of the following groups: halogen as defined above; CF 3 ; OCF 3 ; OH; linear or branched C 1 -C 4 alkyl; a saturated heterocycle with at least 4 carbon atoms and at least 1 heteroatom; C 3 -C 8 cycloalkyl in turn optionally substituted with one or more of the following groups linear or branched C 1 -C 4 alkyl, CF 3 or OH; OR 4 or NHCOR 4 wherein R 4 is CF 3 , linear or branched C 2 -C 6 alkenyl or alkynyl; benzyl; phenyl optionally substituted with one or more of the following groups: halogen, CF 3 , OCF 3 , OH, linear or branched C 1 -C 4 alkyl; a saturated heterocycle with at least 4 carbon atoms and at least 1 heteroatom; C 3 -C 8 cycloalkyl in turn optionally substituted with one or more of the following groups: linear or branched C 1 -C 4 alkyl, CF 3 or OH; said process comprising: condensing a boronic acid or ester ArB(OL) 2 , in which Ar is phenyl and L is an alkyl chain, with an aryl halide of formula (II): wherein R and R 1 are the same as defined above, X is a halogen atom selected from bromine or iodine; and wherein said condensing is catalyzed by palladium.