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2 cards from this section. Quick, good the night before a test.
What is the general formula for alkenes?
Count the number of carbon atoms and see how many hydrogens are related to that.
Name one method for preparing alkenes from alkynes.
Think about what happens when you add hydrogen to ethyne.
What is the general formula for alkenes?
Consider how many hydrogen atoms are lost relative to alkanes.
True or False: Alkenes can be prepared from vicinal dihalides.
Think about the structure of vicinal dihalides.
Propose a synthesis pathway to form 1-butene starting from 2-bromobutane.
Consider the elimination step and the position of the double bond.
Explain the significance of using Lindlar’s catalyst in forming cis-alkenes.
Think about how catalyst choice influences the product's chemical properties.
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