Pseudopolymorphs of chelidamic acid and its dimethyl ester

M Tutughamiarso, T Pisternick, E Egert

Index: Tutughamiarso, Maya; Pisternick, Thorsten; Egert, Ernst Acta Crystallographica Section C: Crystal Structure Communications, 2012 , vol. 68, # 9 p. o344-o350

Full Text: HTML

Citation Number: 5

Abstract

Different tautomeric and zwitterionic forms of chelidamic acid (4-hydroxypyridine-2, 6- dicarboxylic acid) are present in the crystal structures of chelidamic acid methanol monosolvate, C7H5NO5· CH4O,(Ia), dimethylammonium chelidamate (dimethylammonium 6-carboxy-4-hydroxypyridine-2-carboxylate), C2H8N+· C7H4NO5−,(Ib), and chelidamic acid dimethyl sulfoxide monosolvate, C7H5NO5· C2H6OS,(Ic). While the zwitterionic ...

Related Articles:

Fe3O4 nanoparticle-supported copper (I) pybox catalyst: magnetically recoverable catalyst for enantioselective direct-addition of terminal alkynes to imines

[Zeng, Tieqiang; Yang, Luo; Hudson, Reuben; Song, Gonghua; Moores, Audrey R.; Li, Chao-Jun Organic Letters, 2011 , vol. 13, # 3 p. 442 - 445]

Hybrid Core–Shell Microspheres from Coassembly of Anthracene-Containing POSS (POSS-AN) and Anthracene-Ended Hyperbranched Poly (ether amine)(hPEA-AN …

[Guo, Xianmin; Canet, Jean-Louis; Boyer, Damien; Gautier, Arnaud; Mahiou, Rachid Journal of Materials Chemistry, 2012 , vol. 22, # 13 p. 6117 - 6122]

Encapsulation of conventional and unconventional water dimers by water-binding foldamers

[Ong, Wei Qiang; Zhao, Huaiqing; Fang, Xiao; Woen, Susanto; Zhou, Feng; Yap, Weiliang; Su, Haibin; Li, Sam F. Y.; Zeng, Huaqiang Organic Letters, 2011 , vol. 13, # 12 p. 3194 - 3197]

More Articles...