Huang Jin-bo, Yu Ai-nong, SU Bao-guo
2006
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Journal
Chemical Reagents
Abstract
3-Methoxythiophene was obtained by 3-bromothiophene reacted with excessive mount of sodium methoxide for 2.5h with cuprious bromide as catalysis,NMP as solvent at 110℃ with a yield of 82%.Then 3-ethoxythiophene,3-propoxythiophene,3-butoxythiophene,3-pentoxythiophene,3-hexoxythiophene and 3-octoxycthiophene were synthesized,respectively through substitution reaction from 3-methoxythiophene and ethanol,propanol,butanol,pentanol,hexanol,octanol with anhydrous potassium bisulfate as catalyst at 105~115℃.The reaction time were 2.5,2.5,3,3.5,3.5,3.5h with a yield of 75.8%,73.5%,70.4%,68.7%,66.3%,55.3% respectively.They were confirmed by IR,(()~1HMNR) and MS and all evaluated to have basic meat flavour.