Efficient preparation of 9-aryl-1,8-dioxooctahydroxanthenes catalyzed by nano-TiO2 with high recyclability, By Abdolkarim Zare

Research

Title	Efficient preparation of 9-aryl-1,8-dioxooctahydroxanthenes catalyzed by nano-TiO2 with high recyclability
Type	Article
Keywords	9-Aryl-1,8-dioxooctahydroxanthenes; nano-TiO2; high recyclability; solvent-free
Journal	RSC Advances
DOI	10.1039/C2RA22595F
Researchers	Ardeshir Khazaei (First researcher) , Ahmad Reza Moosavi-Zare (Second researcher) , Zahra Mohammadi (Third researcher) , Abdolkarim Zare (Fourth researcher) , Vahid Khakyzadeh (Fifth researcher) , Ghasem Darvishi (Not in first six researchers)

Abstract

9-Aryl-1,8-dioxo-octahydroxanthene derivatives are synthesized by the reaction of arylaldehydes with dimedone (5,5-dimethyl- 1,3-cyclohexanedione) in the presence of nano-TiO2 as an efficient and heterogeneous catalyst under solvent-free conditions. Simple methodology, easy workup procedure, clean reaction, short reaction time, reusability of the catalyst up to 12 times and high yields are some advantages of this work.