Synthesis of hexahydroquinoline (HHQ) derivatives using ZrOCl<sub>2</sub>·8H<sub>2</sub>O as a potential green catalyst and optimization of reaction conditions using design of experiment (DOE)
In this investigation, hexahydroquinoline (HHQ) derivatives were synthesizedviaa one-pot reaction using dimedone, β-ketoester, ammonium acetate, and different aryl aldehydes.
High density sulfonated magnetic carbon quantum dots as a photo enhanced, photo-induced proton generation, and photo switchable solid acid catalyst for room temperature one-pot reaction
photo-switchable activity of the catalyst related to the photoexitation of charge separation which in turn leads to electron withdrawing property in sulfonic groups. On the other hand, it was shown that sulfonated magnetic carbon quantum dot (S-M-CQDs) is more efficient than magnetic carbon quantum dot (M-CQDs). The as-prepared catalyst was characterized using SEM, TEM, EDX, XRD, IR, VSM and TGA. The catalytic
Dihydropyridine derivatives 1-31 were synthesized via one-pot solvent free condition and screened for in vitro against alpha-amylase and alpha-glucosidase enzyme. The synthetic derivatives 1-31 showed good alpha-amylase inhibition in the range of IC50 = 2.21 +/- 0.06-9.97 +/- 0.08 mu M, as compared to the standard drug acarbose (IC50 = 2.01 +/- 0.1 mu M) and alpha-glucosidase inhibition in the range of IC50 = 2.31 +/- 0.09-9.9 +/- 0.1 mu M as compared to standard acarbose (IC50 = 2.07 +/- 0.1 mu M), respectively. To determine the mode of binding interactions of synthetic molecules with active sites of enzyme, molecular docking studies were also performed. Different spectroscopic techniques such as H-1, C-13 NMR, EI-MS, and HREI-MS were used to characterize all the synthetic compounds.