期刊
TETRAHEDRON LETTERS
卷 51, 期 1, 页码 147-150出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2009.10.108
关键词
Domino-Knoevenagel-hetero-Diels-Alder reaction; Unactivated alkyne; 1-Methylindoline-2-thione; Water reaction
资金
- CSIR (New Delhi)
- DST (New Delhi)
The domino-Knoevenagel-hetero-Diels-Alder reaction of O-propargylated salicylaldehyde and 1-methylindoline-2-thione in aqueous medium in the absence of Lewis acid has been described for the synthesis of hitherto unreported indole-annulated pentacyclic heterocycles containing oxygen, nitrogen and sulfur. This methodology involves only one step and easy work-up procedure to give the products in 72-80% yields. (C) 2009 Elsevier Ltd. All rights reserved.
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