Assertion: pyridine | /r/CapableOf | comprise removing water
Facets:
Source sentences:
text: The process for producing 2-vinyl, 5-ethyl pyridine from the crude reaction mixture of the 10 condensation of formaldehyde with Z-methyl, 5-ethyl pyridine, said mixture comprising the monomethylol and polymethylol derivatives of said Z-methyl, 5-ethyl pyridine formed by said condensation, and unreacted Z-methyl, 5-ethyl pyridine which comprises removing water and unreacted 2-methyl, 5-ethyl pyridine from said mixture by distillation under vacuum, and heating the remaining mixture of reaction products still containing said polymethylol derivative in the presence of not less than about 4% by weight of caustic alkali at temperatures at which water and formaldehyde are split off from said polymethylol derivative and water is split off from said monomethylol derivative to form said