Nano-TiCl4/SiO2: An Efficient and Reusable Catalyst for the Synthesis of Tetrahydrobenzo[a]xanthenes-11-ones

作者：Mirjalili Bi Bi Fatemeh^*; Bamoniri Abdolhamid; Zamani Leila

来源：Letters in Organic Chemistry, 2012, 9(5): 338-343.

• Heterogeneous catalyst
• multi component reaction
• Nano-TiCl4/SiO2
• one-pot reactions
• Tetrahydrobenzo[a]xanthen-11-one
• solvent free condition

Tetrahydrobenzo[a]xanthen-11-ones have been synthesized using 50% nano-TiCl4/SiO2 as a reusable, inexpensive, and efficient Lewis acid catalyst. Short reaction times, high yields, scale up, and easy work-up are the advantages of this protocol.

• 出版日期2012-6