Triethylamine-bonded sulfonic acid {[Et3N-SO3H]Cl} as an efficient and homogeneous catalyst for the synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-ones Abdolkarim Zare, Roghayyeh Khanivar, Maria Merajoddin, Masoud Kazem-Rostami, Mohammad Mahdi Ahmad-Zadeh, Ahmad Reza Moosavi-Zare, Alireza Hasaninejad, Requires Subscription PDF downloads: 134