The quantitative account shows that the partition coefficient of acetone k_A is increased by 5.29%—8.31% and the yield of acetone _A is increased by 1.76%—3.41% under the influence of magnetic field with magnetic induction intensity of 0.17—0.52 T.
The reaction is carried out in a autoclavc with magnetic stirrcr and working pressure used is around 5—6kg,/cm~2, at 65℃. The total yield of esters is about 95%, while the yield of ethylene glycol acetates is around 90%.
In the second part, where we explore connections with Maxwell's equations, the main novelty is the treatment of the corresponding electro-magnetic boundary value problem by recasting it as a 'half' Dirichlet problem for a suitable Dirac operator.
At the end of the article, the method is tested on real magnetic field data measured by the German geoscientific research satellite CHAMP.
The stereo-structures of Roridin P and Isororidin P were established on the basis of one- and two-dimensional nuclear magnetic resonance (NMR) spectral analyses.
The synthesized compounds have been characterized on the basis of elemental analyses, infrared spectroscopy (IR), and nuclear magnetic resonance (NMR).
Two compounds were designed, synthesized, and characterized by 1H-nuclear magnetic resonance (1H-NMR), ultraviolet (UV)-visible, and matrix-assisted laser desorption/ionization (MALDI) mass spectra.