Literature DB >> 15606128

New catalytic cycle for couplings of aldehydes with organochromium reagents.

Kosuke Namba1, Yoshito Kishi.   

Abstract

[reaction: see text] A new catalytic cycle has been developed to effect all three subgroups of Cr-mediated couplings, i.e., (1) Ni/Cr-mediated alkenylation, alkynylation, and arylation, (2) Co/Cr-mediated 2-haloallylation, alkylation, and propargylation, and (3) Cr-mediated allylation. In the presence of chiral sulfonamide ligands, good asymmetric inductions can be achieved for some of the Ni/Cr-mediated alkenylation, Co/Cr-mediated 2-haloallylation and propargylation, and Cr-mediated allylation.

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Year:  2004        PMID： 15606128     DOI： 10.1021/ol047661b

Source DB:  PubMed          Journal:  Org Lett        ISSN： 1523-7052            Impact factor:   6.005


  9 in total

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3.  Branch-Selective Addition of Unactivated Olefins into Imines and Aldehydes.

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4.  A total synthesis of norhalichondrin B.

Authors:  Katrina L Jackson; James A Henderson; Hajime Motoyoshi; Andrew J Phillips
Journal:  Angew Chem Int Ed Engl       Date:  2009       Impact factor: 15.336

5.  Synthesis of the C(18)-C(34) fragment of amphidinolide C and the C(18)-C(29) fragment of amphidinolide F.

Authors:  Sudeshna Roy; Christopher D Spilling
Journal:  Org Lett       Date:  2010-10-28       Impact factor: 6.005

6.  Electrochemical Nozaki-Hiyama-Kishi Coupling: Scope, Applications, and Mechanism.

Authors:  Yang Gao; David E Hill; Wei Hao; Brendon J McNicholas; Julien C Vantourout; Ryan G Hadt; Sarah E Reisman; Donna G Blackmond; Phil S Baran
Journal:  J Am Chem Soc       Date:  2021-06-15       Impact factor: 16.383

7.  Chromium(II)-catalyzed enantioselective arylation of ketones.

Authors:  Gang Wang; Shutao Sun; Ying Mao; Zhiyu Xie; Lei Liu
Journal:  Beilstein J Org Chem       Date:  2016-12-19       Impact factor: 2.883

8.  Barbier-type anti-Diastereo- and Enantioselective Synthesis of β-Trimethylsilyl, Fluorinated Methyl, Phenylthio Homoallylic Alcohols.

Authors:  Rui Guo; Qin Yang; Qinshan Tian; Guozhu Zhang
Journal:  Sci Rep       Date:  2017-07-07       Impact factor: 4.379

9.  Enantioselective Nozaki-Hiyama-Kishi allylation-lactonization for the syntheses of 3-substituted phthalides.

Authors:  Sharad V Kumbhar; Chinpiao Chen
Journal:  RSC Adv       Date:  2018-12-12       Impact factor: 4.036
  9 in total

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