In this paper,a new method for simultaneous spectrophotometric analysis of multi-component with double-system was developed.The multivariate calibration method,
5-Hydroxymethylfurfuraldehyde(HMF)was prepared fromfructose or sucrose in high yield by using ZrCl<sub>4</sub> or Cp<sub>2</sub>ZrCl<sub>2</sub> as thecatalyst un
The debromination of diphenyl bromomethane (Ph<sub>2</sub>CHBr) using polymers with viologenstructure as electron--transfer catalyst (ETC) afforded tetraphenylethan