The acylation-dimerization of precocene II

Ferric trichloride in acetic anhydride has been used in the acylation and dimerization-acylation of precocene II. The acylation of this antijuvenile hormone occurs in the chromene ring and not in the aromatic one, whilst in the diners obtained one of the benzemic rings was acylated. In this reaction the first trimer of precocene II has also been obtained. The same reaction was studied using ZnBr$ as Lewis acid.

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Bibliographic Details
Main Authors: Fraga, Braulio M., Cabrera, Inmaculada, García, Víctor P., Guillermo, Ricardo, Perales, Áurea
Format: artículo biblioteca
Language:English
Published: Elsevier 1997
Online Access:http://hdl.handle.net/10261/21440
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Summary:Ferric trichloride in acetic anhydride has been used in the acylation and dimerization-acylation of precocene II. The acylation of this antijuvenile hormone occurs in the chromene ring and not in the aromatic one, whilst in the diners obtained one of the benzemic rings was acylated. In this reaction the first trimer of precocene II has also been obtained. The same reaction was studied using ZnBr$ as Lewis acid.