NOVELTY - Preparing (+)-(R)-tolterodine-L-tartrate (I) comprises: (a) reacting 3,4-dihydro-6-methyl-4-phenyl-2H-benzopyran-2-one (II) with e.g. dimethyl sulfate followed by treatment with hydrochloride to obtain 3-(2-methoxy-5-methylphenyl)-3-phenyl propionic acid (III); (b) reducing (III); (c) converting the obtained 3-(2-methoxy-5-methylphenyl)-3-phenyl propanol (IV) into its hydroxyl protected derivative (V); (d) aminating (V); (e) converting N,N-diisopropyl-3-(2-methoxy-5-methylphenyl)-3-phenylpropyl amine (VI) into its organic acid salt (VII).    USE - The process is useful for preparing (+)-(R)-tolterodine-L-tartrate (claimed), which is useful for treating urinary incontinence. No biological data given.    ADVANTAGE - The process is simple, safe, environment friendly, cost effective and industrially feasible. The process provides (I) with high yield and high purity.    DETAILED DESCRIPTION - Preparation of (+)-(R)-tolterodine-L-tartrate (I) comprises: (a) reacting 3,4-dihydro-6-methyl-4-phenyl-2H-benzopyran-2-one (II) with dimethyl sulfate in the presence of aqueous sodium hydroxide followed by treatment with hydrochloride to obtain 3-(2-methoxy-5-methylphenyl)-3-phenyl propionic acid (III); (b) reducing (III) in the presence of a sodium borohydride, sulfuric acid and tetrahydrofuran to obtain 3-(2-methoxy-5-methylphenyl)-3-phenyl propanol (IV); (c) converting (IV) into hydroxyl protected 3-(2-methoxy-5-methylphenyl)-3-phenyl propanol (V), optionally isolating (V) followed by crystallization in alcohol; (d) aminating (V) with diisopropylamine in the presence of water to obtain N,N-diisopropyl-3-(2-methoxy-5-methylphenyl)-3-phenylpropyl amine (VI); (e) converting (VI) into organic acid salt of N,N-diisopropyl-3-(2-methoxy-5-methylphenyl)-3-phenylpropyl amine (VII); (f) treating (VII) with aqueous hydrobromic acid in the presence of acetic acid to obtain hydrobromide salt of N,N-diisopropyl-3-(2-hydroxy-5-methylphenyl)-3-phenylpropyl amine (VIII); and (g) treating (VIII) with aqueous sodium hydroxide and sodium carbonate in the presence of dichloromethane, optionally isolating free base followed by resolution with L-(+)-tartaric acid in the presence ethanol.