Organocatalyst trityl chloride efficiently promoted the solvent-free synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-ones by in situ formation of carbocationic system in neutral media, By Abdolkarim Zare

Research

Title	Organocatalyst trityl chloride efficiently promoted the solvent-free synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-ones by in situ formation of carbocationic system in neutral media
Type	Article
Keywords	Trityl chloride; Organocatalyst; Multi-component reaction; Solvent free; 12-aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-one
Journal	CATALYSIS COMMUNICATIONS
DOI	10.1016/j.catcom.2012.01.001
Researchers	Ardeshir Khazaei (First researcher) , Mohammad Ali Zolfigol (Second researcher) , Ahmad Reza Moosavi-Zare (Third researcher) , Abdolkarim Zare (Fourth researcher) , Mahmoud Khojasteh (Fifth researcher) , Zhila Asgari (Not in first six researchers) , Vahid Khakyzadeh (Not in first six researchers) , Ali Khalafi-Nezhad (Not in first six researchers)

Abstract

A highly efficient and novel procedure for the preparation of 12-aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-one derivatives via the one-pot three-component condensation of 2-naphthol with arylaldehydes and dimedone in the presence of catalytic amount of trityl chloride (TrCl) as a homogeneous organocatalyst under natural and solvent-free conditions is described. It is interesting that TrCl by in situ formation of trityl carbocation with inherent instability catalyzes the reaction.