Spectroscopic characterization of 1:1 complexes of some carbon acids activated by two sulfonyl groups with 1,5,7-triazabicyclo[4.4.0]dec-5-ene in acetonitrile

Binkowska, Iwona

doi:10.1016/j.ijms.2014.09.003

Cited by 1 publication

(3 citation statements)

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“…The presence of a benzyl substituent has an influence on larger charge delocalization. The m/z signals recorded in acetonitrile as a solvent for the studied disulfonyl carbanions confirmed the proposed fragmentation pathways [32,110].…”

Section: Esi-ms Studiessupporting

confidence: 71%

“…The analysis of spectrometric data obtained by ESI-MS was the basis for proposing a general pathway for the fragmentation of complexes between carbon acids and a strong organic base such as TBD [32,110]. ESI-MS is a suitable method for the analysis of ionized species such as carbanions.…”

Section: Esi-ms Studiesmentioning

confidence: 99%

“…ESI-MS is a suitable method for the analysis of ionized species such as carbanions. The comparison of the ESI-MS spectra recorded at various cone voltages could provide information about the deprotonation reaction of carbon acids and the fragmentation pathways of the formed conjugate carbanions [32,110]. The fragmentation pathways of ethylsulfonyl and benzylsulfonyl carbanions are different, but final products are similar (Scheme 10).…”

Section: Esi-ms Studiesmentioning

confidence: 99%

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Disulfonyl carbon acids – synthesis, spectroscopic and structural studies – a review

Binkowska¹

2015

Comptes Rendus. Chimie

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The subject of carbon acids activated by two sulfonyl groups is reviewed. It will be shown that the studied compounds are relatively strong acids that have their importance in organic chemistry. The structure and reactivity of the products of the deprotonation reaction are also described. Structural studies using X-ray and spectroscopic methods such as IR, NMR or MS give more information about their proton donor properties. They are supplemented by charge distribution research in these carbanions using empirical evaluation and electron density ab initio calculation. A comparison of the results obtained for the title compounds with data obtained for other carbon acids activated by nitro or cyano groups is presented.

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Section: Esi-ms Studiessupporting

confidence: 71%

Section: Esi-ms Studiesmentioning

confidence: 99%

Section: Esi-ms Studiesmentioning

confidence: 99%

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