2285-06-5Relevant articles and documents
Fluorine substituted non-symmetric phenazines: A new synthetic protocol from polyfluorinated azobenzenes
Vaghi, Luca,Coletta, Mattia,Coghi, Paolo,Andreosso, Ivan,Beverina, Luca,Ruffo, Riccardo,Papagni, Antonio
, p. 340 - 351 (2019)
A high ortho regioselectivity in nucleophilic aromatic substitution in low polar solvents is reported in the reaction of polyfluorinated azobenzenes with anilines. o-Anilino substituted derivatives could be easily transformed into non-symmetric phenazines
Mechanochemical oxidation of fluorinated anilines to symmetric azobenzenes
Andreosso, Ivan,Papagni, Antonio,Vaghi, Luca
, p. 124 - 127 (2018)
A solventless mechanochemical methodology for the oxidation of electron-poor fluorinated anilines to the corresponding symmetrical azo compounds has been developed. In this process phenyliodine(III)diacetate and inexpensive calcium hypochlorite demonstrat
Synthesis of Azobenzenes Using N-Chlorosuccinimide and 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU)
Antoine John, Alford,Lin, Qing
, p. 9873 - 9876 (2017/09/23)
A convenient method for the synthesis of symmetrical azobenzenes is reported. This one-step procedure involves treatment of anilines with N-chlorosuccinimide (NCS) and organic base 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU). A wide range of commercially available substituted anilines readily participate in this reaction to produce the corresponding azobenzenes in moderate-to-excellent yields in minutes.