Five previously unknown salt solid forms of 4-dimethylaminopyridine and the crystal structure of a pyridine fumaric acid (2:1) cocrystal are reported. An in-situ base catalyzed isomerization of maleic ...

State Key Laboratory of Structural Chemistry, Fujian Institute of the Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China, and Department of Chemistry, ...