Catalytic hydrogenation in aqueous media 2,2 '- Di

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Catalytic hydrogenation in aqueous media 2,2 '- Dichlorohydrazobenzene of

; Dichlorohydrazobenzene; dichlorobenzidine; reduction; surfactant (Received Et Period: August 2006) (Continued from page 42) al ,2004,[link widoczny dla zalogowanych],265:135-139 [5] KumbharPs, ValenteJS, MilletJM, eta1. Mg-FeHydrotalciteas [7] Shu-Hua Li, Li as Chen Shuai Hua. Catalytic synthesis of quaternary ammonium salt A-1 nitrobenzoic acid acataIvstforthereducti0nofammaticnitmc0mD0undswithhydrazine [J]. Central South University of Technology, 2001,32 (4) :379-381hydrate [J]. Journalofeatalysis ,[link widoczny dla zalogowanych],2000,191:467-473 [8] WilliamB, WrightJr, KennethHC ・ Cyclichydroxamieacidsderived [6] KumamjaM, PitchumaniK. Simpleandefficientreducti0n0fnitroare. fromindole [J]. JAmChemSoc ,1956,78:221-224neyhydrazineinfaujasitezeolites [J]. AppliedCatalysisA: Gener-ReductionofAromaticNitroCompoundswithHydrazineHydrateCatalyzedbyCuO/A1, OinWaterCAIKe-ying,[link widoczny dla zalogowanych], ZONGZhi-min. , WEIXian-yong. (1.SchoolofChemicalEngineering, ChinaUniversityofMiningandTechnology, Xuzhou221008; 2.Depa ~ a mentofChemistry,[link widoczny dla zalogowanych], XuzhouEducationCollege, Xuzhou221006) Abstract: Inwater, aseriesofaromaticnitrocompoundshavebeenreducedingoodyieldtothecorrespondinganilineswithhydrazinehydrateinthepresenceofanCuO/A12O3catalystpreparedbyrapidprecipitationfromsolutionofCuC12andA1C13withsodiumhydrox-ide. TheeffectofthedosageofhydrazinehydrateandCuO/Al2O3, andreactiontimeontheyieldofo-toluidinebythereductionofofo-nitrotoluenewasinvestigated. Theresultsshowthatinwaterundertheconditionsofn (hydrazinehydrate): n (o-nitrotoluene) = 2: l, thequantityofcatalystCuO/A12O3 (n (CuO): n (A12O3) = l: 2) 0.015g/mmolo-nitrotoluene, thereactiontimefor50minandthetemperatureof80 ~ C, theyieldofo-toluidineis98% . KeyWords: aromaticnitrocompounds; hydrazinehydrate; reduction