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12(2,4二硝基苯腙基)8羟基7,8二氢枞酸及其甲酯的合成及表征(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2010年03期
Page:
20-24
Column:
研究论文
publishdate:
2010-06-29

Article Info:/Info

Title:
Synthesis and structure characterization of 12(2,4dinitrophenylhydrazono) 8hydroxy7,8dihydroabietic acid and its methyl ester
Author(s):
HUANG Daozhan12 LAN Hongyun2 LAN Jie2 ZHONG Yaping2 LEI Fuhou2 ZENG Tao1*
1.College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China; 2.College of Chemistry and Ecological Engineering, Guangxi University for Nationalities, Nanning 530006, China
Keywords:
12carboxy8hydroxy78dihydroabietic acid phenylhydrazone synthesis structure characterization
Classification number :
TQ630.4
DOI:
10.3969/j.jssn.1000-2006.2010.03.005
Document Code:
A
Abstract:
12carboxy8hydroxy 7,8dihydroabietic acid (5a) and its methyl ester (5b) was prepared through several steps, including acidification, isomerization and esterification, of 2amino2methyl1propanol salt of levopimaric acid transannular peroxide, which was obtained from directly photosensitized oxidation reaction of 2amino2methyl1propanol salt of levopimaric acid isolated from pine oleoresin. The reaction of 5a and 5b with 2,4dinitrophenyl hydrazine were investigated, and then the products were characterized by means of UV, IR, 1H NMR, 13C NMR, and elemental analysis. The experimental results showed that the new compounds 12(2,4dinitrophenylhydrazono)8hydroxy7,8dihydroabietic acid (6a) and its methyl ester (6b),which have an extensive π electron conjugation and structural stability, were synthesized by a condensation reaction of 5a and 5b with 2,4dinitrophenyl hydrazine by using concentrated sulfuric acid as catalyst.

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Last Update: 2010-06-29