1,4-Dichloro-1,4-diazoniabicyclo[2,2,2]octane bis chloride a new and efficient catalyst for the synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes in water as solvent

Babol University of Technology, Babol, Iran E-mail : habibzadeh@nit.ac.ir Fax : 98-111-3234203 Manuscript received online 16 August 2013, revised 03 February 2014, accepted 24 February 2014 A new and green procedure for the synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes through one-pot condensation of naphthalen-2-ol with benzaldehydes in the presence of 1,4-dichloro-1,4-diazoniabicyclo[2,2,2]octane bis chloride as catalyst in water as a solvent is described