78156-62-4Relevant articles and documents
Diversified Synthesis of Furans by Coupling between Enols/1,3-Dicarbonyl Compounds and Nitroolefins: Direct Access to Dioxa[5]helicenes
Ghosh, Monoranjan,Santra, Sougata,Mondal, Pallab,Kundu, Dhiman,Hajra, Alakananda
, p. 2525 - 2536 (2015/10/29)
A versatile method for the diversified synthesis of furans and arenofurans has been developed that proceeds through K2CO3-promoted cyclization between enols/1,3-dicarbonyl compounds and nitroolefins at reflux in EtOH. This facile method has been successfully employed in the synthesis of benzotrifuran derivatives, which are useful hole-transporting materials. This procedure also provides direct access to dioxa[5]helicenes. This reaction offers a broad substrate scope, uses an inexpensive base and environmentally benign solvent, and is operationally simple.
α-HALO KETONES IX.1 A NEW FURAN-FORMING REACTION
Warnhoff, E.W.,Yerhoff, F.W.
, p. 777 - 784 (2007/10/02)
Some α-halo ketones react with 2-naphthol in the presence of strong acids to give naphthofurans.A hydroxyallylic catin may be an intermediate in the reaction.