Oxindole moiety is widely represented in a huge amount of alkaloids and biologically active molecules [1-3]. In the last decade organic chemists, attracted by the broad pharmacological activities of compounds containing this scaffold, have developed a lot of synthetic strategies to obtain versatile derivatives. In connection with our ongoing research towards the convenient synthesis of both natural products and industrially relevant molecules [4-6], we were interested in the synthesis of the nitrogen substituted oxindoles via direct amination as key transformation. For this purpose, we carried out a delicate amination of (3E)-3-(2-oxo-2-phenylethylidene)-1,3- dihydro-2H-indol-2-one 1 by the quaternary aminotriazolium salt according to the procedure [7]. Herein, the compound, named (3Z)-3-(1-amino-2-oxo-2-phenylethylidene)-1,3-dihydro-2H-indol-2- one 2, has been isolated by column chromatography as oil. The solution in MeOH was left to crystallize slowly at room temperature then filtered off to obtained small red crystals and structure has been assigned on the basis of its elemental analysis, IR, NMR, single crystal X-Ray diffraction study.  In conclusion, we have developed a useful and versatile synthetic protocol for the preparation of amine substituted 3-alkylidene oxindole. The results obtained may be useful for synthetic organic as well combinatorial chemistry.