Journal
ULTRASONICS SONOCHEMISTRY
Volume 18, Issue 2, Pages 520-526Publisher
ELSEVIER
DOI: 10.1016/j.ultsonch.2010.09.007
Keywords
Ultrasound irradiation; 3-Substituted indoles; Solvent-free reactions; Green chemistry
Categories
Funding
- Chinese Academy of Sciences
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A solvent-free procedure for the synthesis of 3-substituted indole derivates from indoles and nitroalkenes under ultrasound irradiation is described. Control experiments disclosed besides mechanical effects, namely agitation, sonochemical effects are the main forces to drive the reaction. In the method, 2-chloroethanol was used to prepare a wide variety of 3-substituted indole derivates. This procedure only need equimolar amounts of reaction substrates and can be readily scaled up. (C) 2010 Elsevier B.V. All rights reserved.
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