Effect of Metal Ions in Organic Synthesis; Part XXVII. Synthesis of 3-Acyl- and 3-Alkoxycarbonyl-1-ureidopyrroles by Copper(II) Chloride-Catalyzed Reaction of Aminocarbonylazoalkenes with β-Diketones and β-Ketoesters
作者:ATTANASI, O.、FILIPPONE, P.、MEI, A.、SANTEUSANIO, S.、SERRA-ZANETTI, F.
DOI:——
日期:——
Buelow, Chemische Berichte, 1905, vol. 38, p. 2371
作者:Buelow
DOI:——
日期:——
FeCl
<sub>3</sub>
‐Catalyzed Formal [3+2] Cyclodimerization of 4‐Carbonyl‐1,2‐diaza‐1,3‐dienes
作者:Giacomo Mari、Matteo Corrieri、Lucia De Crescentini、Gianfranco Favi、Stefania Santeusanio、Fabio Mantellini
DOI:10.1002/ejoc.202101046
日期:2021.10.7
An 1,2-diaza-1,3-diene's cyclodimerization that provides symmetrical fully substituted 1-amino pyrroles through an unusual formal [3+2] reaction is investigated. The study has demonstrated that the presence of electron withdrawing groups on the terminal carbon atom of the azo-ene system is crucial for the success of the reaction. The synthesis occurs with complete regioselectivity and requires a very