Examlex
Discuss the course of the first two years of World War I: Why did many people expect a short war? Why was it not a short war? Why did World War I become a "war of attrition"? Why did the warring nations, worn out by the end of 1916, not make peace?
Cyano Substituent
A cyano substituent refers to a group containing a carbon triple-bonded to a nitrogen atom (-C≡N) attached to a molecular framework.
Aromatic Ring
A cyclic molecule with conjugated pi electrons that exhibits enhanced stability, typified by the benzene ring.
Deactivator
A chemical group or substituent attached to an aromatic ring that decreases its reactivity in electrophilic aromatic substitution reactions.
Friedel-Crafts Acylation
A chemical reaction that introduces an acyl group into an aromatic ring, facilitated by a Lewis acid catalyst, used in synthetic chemistry.
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