NOVEL WATER BASED PROCESS FOR THE PREPARATION OF SUBSTITUTED DIPHENYLMETHYL PIPERAZINES

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United States of America Patent

APP PUB NO 20110172425A1
SERIAL NO

13119346

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Abstract

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The present invention relates to a novel water based process for the preparation of substituted diphenylmethyl piperazines of Formula I and pharmaceutically acceptable saltsrepresent independently a hydrogen, a halogen, a straight or branched chain lower alkyl, alkoxy or a hydroxyl radical and R is selected from groups such as acyl, alkyl, alkenyl, aralalkyl, aralalkenyl aralkyl, and aralalkenyl or aralkenyl hydroxyalkyl, aryloxyalkyl, alkoxyalkyl, aminoalkyl or its derivative comprising, reacting a compound of Formula II, with a compound of formula R—X where R is as defined above and X is suitable leaving group which includes halides, but not limiting use of other leaving groups such as tosylate, mesylate and activated acid groups such as acyl halide, anhydrides, mixed anhydrides etc. using water as a solvent, in presence of a catalyst and a base, at 25-100° C.;

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Patent Owner(s)

Patent OwnerAddress
CALYX CHEMICALS AND PHARMACEUTICALS PVT LTD2 MARWAH'S COMPLEX SAKIVIHAR ROAD SAKINAKA ANDHERI MUMBAI 400 072 MAHARASHTRA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bapat, Chintamani Prabhakar Thane, IN 1 0
Hawaldar, Ashish Yasin Mumbai, IN 1 0
Kulkarni, Rahul Suresh Thane, IN 3 6
Lahiri, Sanjoy Thane, IN 2 24
Lal, Bansi Mumbai, IN 39 444
Mulla, Dilawar Kasam Thane, IN 1 0

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