Literature DB >> 15590306

An expeditious synthesis of beta-indolylketones catalyzed by p-toluenesulfonic acid (PTSA) using ultrasonic irradiation.

Shun-Jun Ji1, Shun-Yi Wang.   

Abstract

PTSA catalyzes the Michael addition of indole to alpha,beta-unsaturated carbonyl ketones under ultrasonic irradiation to afford the corresponding product beta-indolylketones in excellent yields (up to 94%).

Entities:  

Year:  2005        PMID： 15590306     DOI： 10.1016/j.ultsonch.2004.05.003

Source DB:  PubMed          Journal:  Ultrason Sonochem        ISSN： 1350-4177            Impact factor:   7.491


  4 in total

1.  The Michael addition of indoles and pyrrole to alpha-, beta-unsaturated ketones and double-conjugate 1,4-addition of indoles to symmetric enones promoted by pulverization-activation method and Thia-Michael addition catalyzed by wet cyanuric chloride.

Authors:  Ramin Ghorbani-Vaghei; Hojat Veisi
Journal:  Mol Divers       Date:  2009-08-07       Impact factor: 2.943

2.  An efficient synthesis of 1-aryl-3-(indole-3-yl)-3-(2-aryl-1,2,3-triazol-4-yl)propan-1-one catalyzed by a Brønsted acid ionic liquid.

Authors:  Chen-Jiang Liu; Chuan-Ji Yu
Journal:  Molecules       Date:  2010-12-10       Impact factor: 4.411

3.  Ultrasound-promoted one-pot, three-component synthesis of spiro[indoline-3,1'-pyrazolo[1,2-b]phthalazine] derivatives.

Authors:  Juxian Wang; Xiaoguang Bai; Changliang Xu; Yucheng Wang; Wei Lin; Yi Zou; Daqing Shi
Journal:  Molecules       Date:  2012-07-23       Impact factor: 4.411

4.  Conjugate addition of indoles to alpha,beta-unsaturated ketones using a Brønsted acid ionic liquid as an efficient catalyst.

Authors:  Chuan-Ji Yu; Chen-Jiang Liu
Journal:  Molecules       Date:  2009-08-27       Impact factor: 4.411
  4 in total

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