Plant lignins and soil humic colloids were isolated using Hâ‚‚SOâ‚„, NaOH and 1,4-dioxane and their elemental composition, methoxyl contents and cation exchange capacities were determined. The isolated ...
The research in the field of asymmetric carbene organic catalysis has primarily focused on the activation of carbon atoms in non-aromatic scaffolds. Here we report a reaction mode of carbene catalysis ...
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