42507-33-5Relevant academic research and scientific papers
Eine Studie zur Koordination von Vinylallenen und zu einer Folgereaktion - der neuen Rhodium-katalysierten carbonylierenden -Cycloaddition
Murakami, Masahiro,Itami, Kenichiro,Ito, Yoshihiko
, p. 2943 - 2946 (2007/10/03)
Keywords: Carbonylierungen; Cycloadditionen; Koordination; Rhodiumverbindungen; Vinylallene
Die Acylierung von Acetylenen mit β,γ-ungesaettigten Saeurechloriden. Eine neue Synthese von 5-substituierten 2-Cyclopentenonen
Karpf, Martin
, p. 73 - 85 (2007/10/02)
The acylation of acetylenes with α,α-disubstituted, β,γ-unsaturated acid chlorides under Friedel-Crafts-type conditions leads to 5-substituted 2-cyclopentenones.Phenols are formed with β,γ-unsaturated acid chlorides bearing at least one α-H-atom.These transformations are explained by the intramolecular cyclization of the initially formed vinyl cation, which, in the cases of α,α-disubstituted acid chlorides, is formed by ring contraction.The reaction leading to 2-cyclopentenones is applied to the syntesis of some spirodeca-2,6-dienones.
