Chromone studies. Part 10.1 Substituent effects on the basicity of 2-(N,N-dimethylamino)chromones-Reference-Cited by-同舟云学术

Chromone studies. Part 10.1 Substituent effects on the basicity of 2-(N,N-dimethylamino)chromones

Published:2000-05 Issue:5 Volume:2000 Page:237-239
ISSN:1747-5198
Container-title:Journal of Chemical Research
language:en
Short-container-title:Journal of Chemical Research

Author:

Kaye Perry T.¹,Nchinda Aloysius T.¹,Sabbagh Liezel V.¹,McCleland Cedric W.²

Affiliation:

1. Department of Chemistry, Rhodes University, Grahamstown, 6140, South Africa

2. Department of Chemistry, University of Port Elizabeth, PO Box 1600, Port Elizabeth, 6000, South Africa

Abstract

The pKa values for a series of 12, substituted 2-(N,N-dimethylamino)chromones have been determined by potentiometric titration and found to lie within a narrow range (1.92–2.52), protonation of the carbonyl oxygen being supported by 13C NMR data and semi-empirical and ab initio calculations.

Publisher

SAGE Publications

Subject

General Chemistry

Link

http://journals.sagepub.com/doi/pdf/10.3184/030823400103167129

Reference8 articles.

1. Chromone Studies. Part 9.1 Dynamic NMR Analysis of Rotational Isomerism in 2-(N,N-Dialkylamino)chromones

2. Synthesis and biological evaluation of antiplatelet 2-aminochromones

3. A novel synthesis of 2-aminochromones via phosgeniminium salts

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