334826-65-2Relevant articles and documents
The Nazarov cyclization of β-carbonyl-β′-furyl-divinyl ketones and related compounds as induced by perchloric acid
Fernández Mateos,Martín De La Nava,Rubio González
, p. 1049 - 1057 (2007/10/03)
Diluted solutions of perchloric acid and acetic anhydride are introduced as a new catalyst for cationic cyclizations. The influence of the strong acid concentration and the nature of the anhydride have been studied in four types of Nazarov substrates.