Investigation of the acid catalysed Diels-Alder reaction of furan derivatives with β-ferrocenyl-α-enones

✍ Scribed by Monika Prokešová; Štefan Toma; Alan Kennedy; Graham R. Knox

• Publisher: Elsevier Science
• Year: 1998
• Tongue: French
• Weight: 464 KB
• Volume: 54
• Category: Article
• ISSN: 0040-4020
• DOI: 10.1016/s0040-4020(98)00555-9

✦ Synopsis

Attempts have been made on trifluoroacelJc acid catalysed Diels-Alder reaction of furan, 2,5-dimethylfuran and 2,5-diphenylfuran with ,8-ferroccnyl-a-enones. No Diels-Alder products were isolated or detected but products from the FriedeI-Crafls fl-alkylation of furan ring were prepared in some cases. Reaction with 1,3-diphenylbenzo[c]furan under the same conditions resulted in the formation of a formal [4+3 ] cycioaddition product containing 1,2-disubstituted ferrocene.