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Chiral cobalt(I) and nickel(0) complexes in the synthesis of nonracemic helicenes through the enantioselective [2+2+2] cyclotrimerisation of alkynes

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F13%3A00391515" target="_blank" >RIV/61388963:_____/13:00391515 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1016/j.jorganchem.2012.07.005" target="_blank" >http://dx.doi.org/10.1016/j.jorganchem.2012.07.005</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.jorganchem.2012.07.005" target="_blank" >10.1016/j.jorganchem.2012.07.005</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Chiral cobalt(I) and nickel(0) complexes in the synthesis of nonracemic helicenes through the enantioselective [2+2+2] cyclotrimerisation of alkynes

  • Original language description

    The enantioselective intramolecular [2 + 2 + 2] cycloisomerisation of triynes under catalysis by chiral transition-metal complexes (Co-I, Ni-0) in order to receive nonracemic helicene derivatives was explored. The use of the chiral neomenthylindene Co-Icomplex led to a moderate 25% ee of tetrahydro[6] helicene, which was the first example of such a reaction catalysed by the chiral Co-I complex. The alternative Ni-0 catalysis employing privileged axially chiral monophosphines such as (-)-(aS)-NAPHEP ledto tetrahydro [6] helicene with 64% ee, which is among the highest enantiomeric excesses so far observed for this Ni-0-catalysed reaction.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CC - Organic chemistry

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2013

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Organometallic Chemistry

  • ISSN

    0022-328X

  • e-ISSN

  • Volume of the periodical

    723

  • Issue of the periodical within the volume

    Jan 1

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    5

  • Pages from-to

    98-102

  • UT code for WoS article

    000311680100014

  • EID of the result in the Scopus database