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Protonation of 1,2,4,5-tetrakis(dimethylamino)benzene

Authors
Journal
Tetrahedron Letters
0040-4039
Publisher
Elsevier
Publication Date
Volume
27
Issue
47
Identifiers
DOI: 10.1016/s0040-4039(00)85309-5

Abstract

Abstract 1,2,4,5-Tetrakis(dimethylamino)benzene ( 1 ) forms diprotonated salts like the bis(tetrafluoroborate) 3 and the dibromide 4 . For 4 -dihydrate an -X-ray structure revealed the presence of ‘bifurcated hydrogen bonds’. 1 and the protonated species derived therefrom are discussed with regard to the sterical requirements of ‘proton sponges’.

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