the National Key Technology R&D Program(No.2007BAI34B00);the National Natural Science Foundation of China(No.20876147 and 20676123);the Natural Science Foundation of Zhejiang Province(No.Y4080107) for financial support.
A Yb(OTf)3-catalyzed approach for the synthesis of pyrroles under solvent-free conditions was achieved, which could afford the desired products with yields ranged from moderate to excellent.