ARIANI RAHAYU SETIANTI, 051211132082 (2016) PENGARUH GUGUS METOKSI PADA BENZALDEHIDA TERHADAP PERSENTASE HASIL SINTESIS N’-(2-METOKSI-BENZILIDEN)SINAMOILHIDRAZIDA. Skripsi thesis, Universitas Airlangga.

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Abstract

THE EFFECT OF METHOXY GROUP IN BENZALDEHYDE IN YIELD OF N’-(2-METHOXYBENZYLIDENE)CINNAMOYLHYDRAZIDE Ariani Rahayu Setianti This study aims to synthesize N’-benzylidenecinnamoylhydrazide and N’-(2-methoxybenzylidene)cinnamoylhydrazide. The reaction between cinnamoylhydrazide and benzaldehyde obtains N’-benzylidene-cinnamoylhydrazide while the reaction between cinnamoylhydrazide with 2-methoxybenzaldehyde obtains N’-(2-methoxybenzylidene)cinnamoyl-hydrazide. The synthesize completed by microwave irradiation in the samecondition. N’-benzylidenecinnamoylhydrazide was obtained with 47% relative percentage yield, while N’-(2-methoxybenzylidene)-cinnamoylhydrazide was obtained with 14% relative percentage yield by TLC-Densitometer. The structure resulted compound were confirmed by UV-Vis spectrophotometer, IR spectrophotometer, and 1H-NMR spectrometer. It was concluded that the reactivity of methoxy group in ortho position cannot be proven by the yield because in the same condition, cinnamoylhydrazide still present in its reaction with 2-methoxybenzaldehyde while wasn’t present at its reaction with benzaldehyde. Keyword : microwave irradiation, benzaldehyde, 2-methoxybenzaldehyde, N’-benzylidenecinnamoylhydrazide; N’-(2-methoxy-benzylidene)-cinnamoylhydrazide

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