The present invention relates to processes for the preparation of 4 [3 [4 (6 fluoro 1 2 benzisoxazol 3 yl)piperidino]propoxy] 3 methoxyacetophenone and intermediates thereof. The present invention also provides a process for purifying 4 [3 [4 (6 fluoro 1 2 benzisoxazol 3 yl)piperidino]propoxy] 3 methoxyacetophenone to obtain the purity greater than about 98.0 area % to about 99.0 area % as measured by HPLC preferably greater than about 99.0 area % to about 99.5 area% more preferably greater about 99.5 area % to about 99.9 area %. individual impurities lower than about 0.15 area % preferably lower than about 0.1 % and total impurities lower than about 0.5 area % by HPLC.
