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Citation: ZHANG Ji, SUN Wen-Xiu, WANG Yun-Pu, WEN Hui-Hui, LIU Han-Shi, WEI Yu-Li. The Extraction of Lappacontine and Synthesis,Characterization of Lappaconitine Hydrobromide[J]. Chinese Journal of Applied Chemistry, ;2007, 24(6): 720-722. shu

The Extraction of Lappacontine and Synthesis,Characterization of Lappaconitine Hydrobromide

ZHANG Ji ^a,b ,
SUN Wen-Xiu ^a ,
WANG Yun-Pu ^a,, ,
WEN Hui-Hui ^a ,
LIU Han-Shi ^a ,
WEI Yu-Li ^a

1.
a Institute of Polymers, Northwest Normal University, Lanzhou 730070;
2.
b College of Life Science, Northwest Normal University, Lanzhou 730070

Corresponding author: WANG Yun-Pu,
Received Date: 22 August 2006
Available Online: 22 November 2006
Fund Project: 国家自然科学基金资助项目(M0325005) (M0325005)

The extraction process of lappaconitine from the root of Aconitum sinomontanum Nakai,which is a special plant in GanSu province China,using 75% ethanol with a yield of 0.61% was described.The lappaconitine hydrobromide was synthesized in a new way,with a yield of 84%.The structures of extracted lappaconitine and the lappaconitine hydrobromide were characterized by IR,elemental analysis,¹H NMR,¹³C NMR and MS.The results show that using 75% ethanol to extract lappaconitine gets over the problem which was brought by adding alkali traditionally.And in the lappaconitine hydrobromide preparation,the outgrowth and long reaction time were overcome by dibromine alkyl instead of hydrobromic acid.
- lappaconitine,
- lappaconitine hydrobromide,
- synthesis,
- extraction,
- characterization
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