Optimation of NaOH Catalyst Consentration on 1,3-Diphenyl-2-propen-1-on Synthesis Using Microwave-Assisted Organic Synthesis (MAOS) Method

JKPK (Jurnal Kimia dan Pendidikan Kimia) Pub Date : 2019-04-30 DOI:10.20961/JKPK.V4I1.25790

Iin Narwanti, Narendra Bagus Kusumajati

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引用次数: 2

Abstract

with a variation of NaOH catalyst concentration has been done. The purpose of this study was to determine the concentration of NaOH catalyst in the synthesis of 1,3-diphenyl-2-propen-1-on using MAOS method which produced optimal yield. The synthesis of 1,3-diphenyl-2-propen-1-on using benzaldehyde and acetophenone was carried out using the MAOS method with NaOH catalyst. The variation of NaOH catalyst concentration was 10%, 20%, 30%, and 40%. Microwave radiation was carried out at 140 watts for 20 seconds. The purity of the synthesized 1,3-diphenyl-2-propen-1-on was tested by melting point, TLC, and gas chromatography. The structure of the synthesized 1,3-diphenyl-2-propen-1-on was characterized by FTIR, GC-MS and NMR. The results showed that the compound 1,3-diphenyl-2-propen-1-on can be synthesized from benzaldehyde and acetophenone using MAOS method. The obtained yield at varying catalyst concentrations of 10, 20, 30 and 40% were (50.58±1.84%, (69.20±1.58)%, (84.55±1.50)% and (90.60±0.96)%, respectively. The concentration of 40% NaOH catalyst produces the most optimal yield of synthesis products.

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微波辅助有机合成(MAOS)法合成1,3-二苯基-2-丙烯-1的NaOH催化剂浓缩优化

对NaOH催化剂浓度的变化进行了研究。本研究的目的是确定NaOH催化剂在MAOS法合成1,3-二苯基-2-丙烯-1-on时的浓度，以获得最佳产率。以苯甲醛和苯乙酮为原料，在NaOH催化下，采用MAOS法合成了1,3-二苯基-2-丙烯-1-on。NaOH催化剂浓度的变化幅度分别为10%、20%、30%和40%。140瓦的微波辐射持续了20秒。合成的1,3-二苯基-2-丙烯-1-on的纯度采用熔点、薄层色谱、气相色谱法进行检测。合成的1,3-二苯基-2-丙烯-1-on的结构通过FTIR、GC-MS和NMR进行了表征。结果表明，以苯甲醛和苯乙酮为原料，采用MAOS法可合成化合物1,3-二苯基-2-丙烯-1-on。催化剂浓度为10%、20%、30%和40%时，产率分别为(50.58±1.84%)、(69.20±1.58)%、(84.55±1.50)%和(90.60±0.96)%。当NaOH浓度为40%时，合成产物收率最佳。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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JKPK (Jurnal Kimia dan Pendidikan Kimia)

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