Literature DB >> 22237869

Organocatalytic enantioselective pyrazol-3-one addition to maleimides: reactivity and stereochemical course.

Andrea Mazzanti1, Teresa Calbet, Merce Font-Bardia, Albert Moyano, Ramon Rios.   

Abstract

The enantioselective synthesis of pyrazol-3-ones has not been extensively studied in organic synthesis. Here in we report the first asymmetric addition of pyrazolones to maleimides catalyzed by bifunctional thiourea catalysts.

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Year:  2012        PMID： 22237869     DOI： 10.1039/c2ob06553c

Source DB:  PubMed          Journal:  Org Biomol Chem        ISSN： 1477-0520            Impact factor:   3.876


  3 in total

1.  Microwave Assisted Synthesis, Spectrofluorometric Characterization of Azomethine as Intermediate for Transition Metal Complexes with Biological Application.

Authors:  Mohie E M Zayed; Abdullah M Asiri; Salman A Khan
Journal:  J Fluoresc       Date:  2016-04-06       Impact factor: 2.217

2.  Streocontrolled construction of six vicinal stereogenic centers on spiropyrazolones via organocascade Michael/Michael/1,2-addition reactions.

Authors:  Pankaj Chauhan; Suruchi Mahajan; Charles C J Loh; Gerhard Raabe; Dieter Enders
Journal:  Org Lett       Date:  2014-05-19       Impact factor: 6.005

3.  Combining silver- and organocatalysis: an enantioselective sequential catalytic approach towards pyrano-annulated pyrazoles.

Authors:  Daniel Hack; Pankaj Chauhan; Kristina Deckers; Yusuke Mizutani; Gerhard Raabe; Dieter Enders
Journal:  Chem Commun (Camb)       Date:  2015-02-11       Impact factor: 6.222
  3 in total

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