prov:value
| - The reaction may be carried out, for example, in a solvent, such as, for example, a lower alkanol, e.g. methanol, ethanol, propanol, isopropanol and the like, an ether, e.g. diethylether, p-dioxane and the like, a lower alkyl lower alkanoate, e.g. ethyl acetate and the like, a halogenated hydrocarbon, e.g. methylene chloride and the like, or a mixture of such solvents, and isolating the desired sa
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