Ultrasound-assisted synthesis of pyrroles catalyzed by zirconium chloride under solvent-free conditions

作者：Zhang Zhan Hui^*; Li Jian Jong; Li Tong Shan

来源：Ultrasonics Sonochemistry, 2008, 15(5): 673-676.

DOI：10.1016/j.ultsonch.2008.02.008

• ultrasound
• pyrroles
• Paal-Knorr reaction
• zirconium chloride

A straightforward synthesis of substituted pyrroles using zirconium chloride-catalyzed modified Paal-Knorr method has been accomplished under ultrasound irradiation. Compared to known methods, this new method provides as easy access to various substituted pyrroles in good to excellent yields with short reaction times.

• 出版日期2008-7
• 单位河北师范大学