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Salts of 4‐Substituted Dipicolinic Acid Derivatives − Very Low Molecular Mass Gelators of Aqueous DMSO
Author(s) -
Müller Walter M.,
Müller Ute,
MiedenGundert Gudrun,
Vögtle Fritz,
Lescanne Marion,
Heuzé Karine,
D'Aléo Anthony,
Fages Frédéric
Publication year - 2002
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/1099-0690(200209)2002:17<2891::aid-ejoc2891>3.0.co;2-f
Subject(s) - dipicolinic acid , chemistry , deprotonation , substituent , aqueous solution , picolinic acid , carboxylic acid , polymer chemistry , base (topology) , organic chemistry , ion , mathematical analysis , botany , mathematics , spore , biology
This study reports on the gelation behaviour of a well‐known family of dipicolinic acid derivatives that lack any long aliphatic chain as substituent. The mechanism of gelation is likely to arise from the base‐assisted deprotonation of the carboxylic functionality which leads to the formation of the monodeprotonated ligand as the key gelling species. The gels of aqueous DMSO are remarkably thermally resistant and stable over long periods. (© Wiley‐VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)