Electrospray Ionization Mass Spectrometry Reveals an Unexpected Coupling Product in the Copper-Promoted Synthesis of Pyrazoles

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F13%3A00392310" target="_blank" >RIV/61388963:_____/13:00392310 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1021/om3010417" target="_blank" >http://dx.doi.org/10.1021/om3010417</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/om3010417" target="_blank" >10.1021/om3010417</a>

Result language

angličtina

Original language name

Electrospray Ionization Mass Spectrometry Reveals an Unexpected Coupling Product in the Copper-Promoted Synthesis of Pyrazoles

Original language description

The reaction mechanism of the intermolecular oxidative formation of pyrazole 2 via a C-C/N-N bond-formation cascade of the enaminone 1 is investigated by means of ESI-MS. No direct reaction intermediates are observed; however, the formation of an unexpected imidazolid-3-one derivative X is observed that involves an oxidative dimerization of 1 in the presence of dioxygen. The derivative X is isolated and characterized by means of multidimensional H-1 and C-13 NMR spectroscopy.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CC - Organic chemistry

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2013

Confidentiality

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

Name of the periodical

Organometallics

ISSN

0276-7333

e-ISSN

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Volume of the periodical

32

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

10

Pages from-to

807-816

UT code for WoS article

000314908400013

EID of the result in the Scopus database

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