The acylation-dimerization of precocene II

✍ Scribed by Braulio M. Fraga; Inmaculada Cabrera; Victor P. García; Ricardo Guillermo; Aurea Perales

• Book ID: 104208188
• Publisher: Elsevier Science
• Year: 1997
• Tongue: French
• Weight: 402 KB
• Volume: 53
• Category: Article
• ISSN: 0040-4020
• DOI: 10.1016/s0040-4020(97)10076-x

✦ Synopsis

Ferric trichloride in acetic anhydride has been used in the acylation and dimerizalionacylation of precocene II. The acylation of this antijuvenile hormone occurs in the chromene ring and not in the aromatic one, whilst in the dimers obtained one of the benzenic rings was acylated. In this reaction the first trimer of precocene II has also been obtained. The same reaction was studied using ZnBr 2 as Lewis acid.