Organic chemistry
A green and eco-friendly method for the synthesis of xanthene derivatives using cellulose sulfuric acid under solvent-free conditions

Seyyedeh Cobra Azimi; Esmayeel Abbaspour-Gilandeh

Volume 4, Issue 3, pp. 236-358, Serial No. 12 , July 2016, , Pages 245-255

Abstract
  A green and convenient method for the synthesis of 14-aryl-14H-dibenzo[a,i]xanthene-8,13-diones and spiro[dibenzo[a,i]-xanthene-14,3'-indoline]-2',8,13-triones in the presence of a catalytic amount of cellulose sulfuric acid (CSA) as an efficient biopolymer-based catalyst under solvent-free conditions ...  Read More

A green and eco-friendly method for the synthesis of xanthene derivatives using cellulose sulfuric acid under solvent-free conditions