Abstract New 3-chalcone-substituted 1,4-dihydropyridine (DHP) derivatives have been synthesized based on dimethyl or diethyl 2,6-dimethyl-4-phenyl-1,4-DHP-3,5-dicarboxylate. Their structures were confirmed by IR, 1H NMR, 13C NMR, and elemental analyses. The synthesized compounds were also screened for antioxidant properties.
Probing the energy efficiency of microwave heating and continuous-flow conventional heating as tools for organic chemistry
作者:Nicholas E. Leadbeater、William G Devine
DOI:10.3998/ark.5550190.0012.512
日期:——
The energyefficiency of using microwaveheating has been compared with batch and continuous-flowconventionalheating for three reactions. As expected, as the scale is increased so the energyefficiency improves. In addition, the energy consumption is similar for both sealed and open vessel microwave processing. When using a conventionally heated continuous-flow approach, while the energy efficiency