Tetrahedron Letters

The direct substitutions of 9H-xanthen-9-ol with indoles in a room temperature ionic liquid medium BmimBF 4

L Liu, B Wang, H Yang, W Chang, J Li

Index: Liu, Ling-Yan; Wang, Bing; Yang, Hong-Mei; Chang, Wei-Xing; Li, Jing Tetrahedron Letters, 2011 , vol. 52, # 43 p. 5636 - 5639

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Citation Number: 4

Abstract

A simple, atom economical, highly efficient and green protocol has been developed for the SN1-type substitutions of 9H-xanthen-9-ol with indoles or other nucleophiles (such as diketone and pyrrole). This approach provides the substitution products in high or excellent yields in the BmimBF4 media at room temperature.