Efficient and Eco‐Friendly Process for the Synthesis of Bis(1<i>H</i>‐indol‐3‐yl)methanes using Ionic Liquids

Advanced Synthesis and Catalysis - Tập 345 Số 3 - Trang 349-352 - 2003
J. S. Yadav1, B. V. Subba Reddy1, Sunitha Sadula1
1Division of Organic Chemistry, Indian Institute of Chemical Technology, Hyderabad 500 007, India Fax: (+91)-40-7160512

Tóm tắt

AbstractIndoles react smoothly with carbonyl compounds in 1‐butyl‐3‐methylimidazolium tetrafluoroborate ([bmim]BF4) or 1‐butyl‐3‐methylimidazolium hexafluorophosphate ([bmim]PF6) ionic liquids under mild reaction conditions to afford the corresponding bis‐indolylmethanes in excellent yields. These ionic liquids can be recovered and recycled in subsequent reactions without any apparent loss of activity.

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