Assertion: pyridine's derivative | /r/HasProperty | formed in said condensation
Facets:
Source sentences:
text: derivative formed in said condensation, which comprises heating said mixture in the presence of not less than about 4% of a strong alkaline agent based on the Weight of said crude mixture of reaction products less any accompanying unreacted compound containing the aromatic six membered single nitrogen heterocyclic ring and water at temperatures at which water and formaldehyde are split off