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Synthesis 2022(5): 0783-0787
DOI: 10.1055/s-2001-12777
DOI: 10.1055/s-2001-12777
PAPER
© Georg Thieme Verlag Stuttgart · New York
Lithium Perchlorate Catalyzed Reactions of Indoles: An Expeditious Synthesis of Bis(indolyl)methanes [1]
Further Information
Publication History
Received
29 October 2000
Publication Date:
15 October 2004 (online)


Abstract
Lithium perchlorate is found to catalyze efficiently the electrophilic substitution reactions of indoles with aldehydes and ketones in diethyl ether to afford the corresponding bis(indolyl)methanes in high yields. LiOTf is also found to be an efficient catalyst for the synthesis of these compounds.
Key words
lithium perchlorate - indoles - carbonyl compounds - bis(indolyl)methanes
IICT Communication No. 4566