Examlex
____________________ is the rule that no field that is part of the primary key may accept null values.
Cyclopentene
A cyclic alkene with a five-membered ring, characterized by the presence of a carbon-carbon double bond, making it reactive in chemical syntheses.
Hydrogenation
The chemical reaction where hydrogen is added to another compound, often used to convert unsaturated bonds to saturated ones in hydrocarbons.
Bredt's Rule
A principle stating that bridged bicyclic compounds cannot have a double bond at a bridgehead position unless one of the rings contains at least eight carbon atoms, due to stability issues.
Stable Diene
A type of organic compound with two double bonds that exhibits stability in its structure and reactivity.
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