Title: A simple and efficient one-pot bis-bromine-1,4-diazabicyclo [2.2.2]octane (Br<sub>2</sub>-DABCO) catalyzed synthesis of 14-aryl-14 H-dibenzo[ a,j]xanthenes under solvent-free conditions.
Authors: Ghasemnejad-Bosra, Hassan; Forouzani, Mehdi
Abstract: Bis-bromine-1,4-diazabicyclo[2.2.2]octane (Br2-DABCO) is an efficient, readily available, and reusable catalyst for the synthesis of 14-aryl-14 H-dibenzo[ a,j]xanthenes 3 by condensation of β-naphthol 2 and aldehydes 1. This reaction under solvent-free conditions is very simple, affording good to excellent yields of products.
Subjects: BROMINE; HETEROCYCLIC compounds; OXYGEN; CHEMICAL reagents; CATALYSTS
Publication: Heterocyclic Communications, 2011, Vol 17, Issue 1/2, p83
ISSN: 0793-0283
Publication type: Academic Journal
DOI: 10.1515/HC.2011.020

A simple and efficient one-pot bis-bromine-1,4-diazabicyclo [2.2.2]octane (Br<sub>2</sub>-DABCO) catalyzed synthesis of 14-aryl-14 H-dibenzo[ a,j]xanthenes under solvent-free conditions.

Ghasemnejad-Bosra, Hassan; Forouzani, Mehdi