Indanones and Indenols from 2-Alkylcinnamaldehydes via the Intramolecular Friedel−Crafts Reaction of Geminal Diacetates
摘要:
When treated with Ac(2)O at rt in the presence of 4-6 mol% FeCl(3), 2-alkylcinnamaldehydes are converted to 2-alkyl-1H-inden-1-yl acetates through the intermediacy of gemdiacetates. Methanolysis of the indenyl acetates yields the corresponding indenols, Saponification yields 2-alkylindanones, providing, in effect, an intramolecular acylation employing catalytic levels of acid.
Ungesättigte Oxime, 28. Mitt. Notiz zur Darstellung α-verzweigter Zimtaldehyde und ihrer Oxime. The Synthesis of α-branched Cinnamyl Aldehydes and of their Oximes
Alphonse, I.; Arulraj, S. J., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1985, vol. 24, p. 199 - 200
作者:Alphonse, I.、Arulraj, S. J.
DOI:——
日期:——
Ungesättigte Oxime, 28. Mitt. Notiz zur Darstellung α-verzweigter Zimtaldehyde und ihrer Oxime. The Synthesis of α-branched Cinnamyl Aldehydes and of their Oximes
作者:Bernard Unterhalt、Sulaiman Eljabour
DOI:10.1002/ardp.19863190719
日期:——
Indanones and Indenols from 2-Alkylcinnamaldehydes via the Intramolecular Friedel−Crafts Reaction of Geminal Diacetates
作者:Gary B. Womack、John G. Angeles、Vincent E. Fanelli、Brinda Indradas、Roger L. Snowden、Philippe Sonnay
DOI:10.1021/jo900910b
日期:2009.8.7
When treated with Ac(2)O at rt in the presence of 4-6 mol% FeCl(3), 2-alkylcinnamaldehydes are converted to 2-alkyl-1H-inden-1-yl acetates through the intermediacy of gemdiacetates. Methanolysis of the indenyl acetates yields the corresponding indenols, Saponification yields 2-alkylindanones, providing, in effect, an intramolecular acylation employing catalytic levels of acid.