Literature DB >> 23740890

Regioselective one-step synthesis of pyrazoles from alkynes and N-tosylhydrazones: [3+2] dipolar cycloaddition/[1,5] sigmatropic rearrangement cascade.

M Carmen Pérez-Aguilar1, Carlos Valdés.   

Abstract

Entities:  

Keywords:  alkyne; heterocycles; hydrazones; rearrangement; synthetic methods

Mesh：

Substances：

Year:  2013        PMID： 23740890     DOI： 10.1002/anie.201301284

Source DB:  PubMed          Journal:  Angew Chem Int Ed Engl        ISSN： 1433-7851            Impact factor:   15.336


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  2 in total

1.  Synthesis of Spirobicyclic Pyrazoles by Intramolecular Dipolar Cycloadditions/[1s, 5s] Sigmatropic Rearrangements.

Authors:  Christine A Dimirjian; Marta Castiñeira Reis; Edward I Balmond; Nolan C Turman; Elys P Rodriguez; Michael J Di Maso; James C Fettinger; Dean J Tantillo; Jared T Shaw
Journal:  Org Lett       Date:  2019-09-05       Impact factor: 6.005

2.  [2 + 2 + 1] Cycloaddition of N-tosylhydrazones, tert-butyl nitrite and alkenes: a general and practical access to isoxazolines.

Authors:  Liang Ma; Feng Jin; Xionglve Cheng; Suyan Tao; Gangzhong Jiang; Xingxing Li; Jinwei Yang; Xiaoguang Bao; Xiaobing Wan
Journal:  Chem Sci       Date:  2021-06-22       Impact factor: 9.825
  2 in total

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