1240492-71-0Relevant articles and documents
Regioselective synthesis of novel functionalized phosphanylidene anthra[2,1-b]furan derivatives under solvent-free conditions
Nourmohammadian, Farahnaz,Gholami, Mahnaz Davoudzadeh
experimental part, p. 340 - 346 (2010/07/05)
A convenient and efficient, regioselective, solvent-free procedure has been developed to react 2,6-dihydroxyanthraquinone, dialkyl acetylenedicarboxylates, and triphenylphosphine in one-pot, to afford novel phosphanylidene anthracenyl derivatives 3a-c, which at 90°C due to intramolecular nucleophilic attack formed novel phosphanylidene anthra[2,1-b]furans 4a-c in good yield.