Literature DB >> 15756340

A simple cobalt catalyst system for the efficient and regioselective cyclotrimerisation of alkynes.

Gerhard Hilt1, Thomas Vogler, Wilfried Hess, Fabrizio Galbiati.   

Abstract

The intermolecular cyclotrimerisation of terminal and internal alkynes can be catalysed by simple cobalt complexes such as a CoBr2(diimine) under mild reaction conditions when treated with zinc and zinc iodide with high regioselectivity in excellent yields.

Entities:  

Year:  2005        PMID： 15756340     DOI： 10.1039/b417832g

Source DB:  PubMed          Journal:  Chem Commun (Camb)        ISSN： 1359-7345            Impact factor:   6.222


  10 in total

1.  Predictable and regioselective insertion of internal unsymmetrical alkynes in rhodium-catalyzed cycloadditions with alkenyl isocyanates.

Authors:  Rebecca Keller Friedman; Tomislav Rovis
Journal:  J Am Chem Soc       Date:  2009-08-05       Impact factor: 15.419

2.  Oxidative Coupling with Zr(IV) Supported by a Noninnocent Anthracene-Based Ligand: Application to the Catalytic Cotrimerization of Alkynes and Nitriles to Pyrimidines.

Authors:  Choon Heng Low; Jeffrey N Rosenberg; Marco A Lopez; Theodor Agapie
Journal:  J Am Chem Soc       Date:  2018-09-14       Impact factor: 15.419

3.  The iron-catalyzed construction of 2-aminopyrimidines from alkynenitriles and cyanamides.

Authors:  Timothy K Lane; Minh H Nguyen; Brendan R D'Souza; Nathan A Spahn; Janis Louie
Journal:  Chem Commun (Camb)       Date:  2013-09-11       Impact factor: 6.222

4.  Beyond Reppe: building substituted arenes by [2+2+2] cycloadditions of alkynes.

Authors:  Brandon R Galan; Tomislav Rovis
Journal:  Angew Chem Int Ed Engl       Date:  2009       Impact factor: 15.336

Review 5.  Transition metal catalyzed [6 + 2] cycloadditions.

Authors:  Amit Anand; Prabhpreet Singh; Vipan Kumar; Gaurav Bhargava
Journal:  RSC Adv       Date:  2019-08-15       Impact factor: 4.036

Review 6.  Application of cycloaddition reactions to the syntheses of novel boron compounds.

Authors:  Yinghuai Zhu; Xiao Siwei; John A Maguire; Narayan S Hosmane
Journal:  Molecules       Date:  2010-12-21       Impact factor: 4.411

7.  Enhanced Catalytic Activity of Nickel Complexes of an Adaptive Diphosphine-Benzophenone Ligand in Alkyne Cyclotrimerization.

Authors:  Alessio F Orsino; Manuel Gutiérrez Del Campo; Martin Lutz; Marc-Etienne Moret
Journal:  ACS Catal       Date:  2019-01-31       Impact factor: 13.084

8.  Cobalt-catalyzed branched selective hydroallylation of terminal alkynes.

Authors:  Jieping Chen; Jiale Ying; Zhan Lu
Journal:  Nat Commun       Date:  2022-08-03       Impact factor: 17.694

9.  Practical Synthesis of α-Trifluoromethylated Pyridines Based on Regioselective Cobalt-Catalyzed [2+2+2] Cycloaddition using Trifluoromethylated Diynes with Nitriles.

Authors:  Tatsuya Kumon; Shigeyuki Yamada; Tomohiro Agou; Hiroki Fukumoto; Toshio Kubota; Gerald B Hammond; Tsutomu Konno
Journal:  Adv Synth Catal       Date:  2021-01-22       Impact factor: 5.837

10.  Triphenylene discotic liquid crystal trimers synthesized by Co2(CO)8-catalyzed terminal alkyne [2 + 2 + 2] cycloaddition.

Authors:  Bin Han; Ping Hu; Bi-Qin Wang; Carl Redshaw; Ke-Qing Zhao
Journal:  Beilstein J Org Chem       Date:  2013-12-11       Impact factor: 2.883
  10 in total

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