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Some compounds of -aminoketone type have been synthesized by reaction between substituted benzylideneanilines and acetophenone in the present of hydrochloric acid as catalyst in the ethanol medium. These azomethines have been synthesized from substituted benzaldehydes and aniline. The structures of obtained -aminoketones have been confirmed by using spectroscopic methods (IR- and mass spectra). Their metallic corrosion inhibition properties also have been estimated on aluminum and CT-3 steel using immersion method. | Journal of Chemistry Vol. 44 5 P. 638 - 641 2006 STUDY ON SYNTHESIS AND METALLIC CORROSION INHIBITION PROPERTIES OF SOME p-AMINOKETONES FROM r-benzylideneanilinEs and acetophenone Received 5 January 2005 DANG NHU TAI NGUYEN DINH THANH TRINH THI MINH NGUYET Faculty of Chemistry Hanoi University of Science VNU SUMMARY Some compounds of fi-aminoketone type have been synthesized by reaction between substituted benzylideneanilines and acetophenone in the present of hydrochloric acid as catalyst in the ethanol medium. These azomethines have been synthesized from substituted benzaldehydes and aniline. The structures of obtained fi-aminoketones have been confirmed by using spectroscopic methods IR- and mass spectra . Their metallic corrosion inhibition properties also have been estimated on aluminum and CT-3 steel using immersion method. I - INTRODUCTION P-aminoketones contain the -NH- and C O groups at each other P-positions. These compounds are known in 60 s years of previous century but nowadays there are not many works which deeply study on their structures and properties 1 - 5 . Continuing some previous studies in this field 6 in this article some P-aminoketones from R-benzylideneanilines have been synthesized and their metallic corrosion inhibition properties on aluminum and CT-3 steel have been investigated using the immersion method. II - EXPERIMENTAl Melting points of the synthesized compounds were measured by using Thiele s apparatus in capillary and uncorrected. The IR-spectra were recorded on Magna 760 FT-IR Spectrometer NICOLET USA in form of mixing with KBr and using reflex-measure method at the Petrol-Chemical Center Hanoi University of Science VNU . The mass spectra were recorded on MS Engine 5989B Spectrometer Hewlet Parkard USA at the Lab of Structural Analysis Institute of Chemistry VAST . General Method for Synthesis of P-aminoketones 3-anilino-3- 4-R-phenyl -1-phenylpropan-1-one IIa-e 0.01 mole of N-R-benzylideneaniline was dissolved in 25 ml of 95 .
