A new silver coordination polymer based on 4,6-diamino-2-pyrimidinethiol: synthesis, characterization and catalytic application in asymmetric Hantzsch synthesis of polyhydroquinolines

Abstract A highly efficient and stable heterogeneous coordination polymer (CP) was successfully prepared by hydrothermal combination of silver 4,6-diamino-2-pyrimidinethiol. The characterized FT-IR, XRD, TGA, SEM, EDX, X-ray mapping Nitrogen adsorption–desorption analysis. Ag–CP exhibit excellent catalytic activity in multicomponent Hantzsch synthesis polyhydroquinolines under mild reaction conditions relatively short times. heterogeneity the catalyst confirmed hot filtration test; also, reused for at least four times optimized without any significant loss its activity.