Microwave-assisted green synthesis of dibenzo[aj]xanthenes using p-dodecylbenzenesulfonic acid as an efficient Bronsted acid catalyst under solvent-free conditions

作者：Prasad Davinder; Preetam Amreeta; Nath Mahendra^*

来源：Comptes Rendus Chimie, 2012, 15(8): 675-678.

DOI：10.1016/j.crci.2012.05.018

• DBSA
• Microwave irradiation
• Solvent-free conditions
• Green synthesis
• Dibenzo[aj]xanthenes

The p-dodecylbenzenesulfonic acid (DBSA) has been successfully applied as an efficient acidic catalyst for the microwave-assisted synthesis of a series of 14-aryl- or alkyl-14H-dibenzo[aj]xanthenes (3a-m) via a one-pot condensation-cyclization reaction of beta-naphthol with various aliphatic or aromatic aldehydes under solvent-free conditions. Operational simplicity, short reaction times, excellent yields and environmentally-benign conditions are other advantages of this protocol.

• 出版日期2012-8