Mechanosynthesis of Sydnone-Containing Coordination Complexes
Preprints are manuscripts made publicly available before they have been submitted for formal peer review and publication. They might contain new research findings or data. Preprints can be a draft or final version of an author's research but must not have been accepted for publication at the time of submission.
N-Phenyl-4-(2-pyridinyl) sydnone was shown to act as a four-electron donor N,O-ligand in unprecedented coordination complexes featuring four different metallic centers (Co, Cu, Zn). Starting from various anilines, the use of ball-mill enabled efficiently the synthesis of N-arylglycines, subsequent nitrosylation and cyclization into sydnone, and further metalation.