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Selective Esterification of Gossypol by Copper Acetate in Acetonitrile-Spectroscopic Studies

 

作者: Bogumil Brzezinski*,   Bronislaw Marciniak,   Halina Kozubek,   Stefan Paszyc,  

 

期刊: Spectroscopy Letters  （Taylor Available online 1994）
卷期: Volume 27, issue 9  

页码: 1143-1151

 

ISSN:0038-7010

 

年代: 1994

 

DOI:10.1080/00387019408006972

 

出版商: Taylor & Francis Group

 

关键词: FTIR;UV-visible absorption spectra;Gossypol;Copper Acetate

 

数据来源: Taylor

 

摘要:

Gossypol and its 1: 1 complexes with copper acetate in acetonitrile were studied by FTIR and UV-visible spectroscopy. With the complexation with Cu cation the tautomeric equilibrium of gossypol is completely shifted from the aldehyde-aldehyde to the lactol-lactol tautomer. The acidic character of O11H group in the gossypol-Cu complex led to the selective esterification of the lactol form of gossypol by the acetate group.

 

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