page 1 Flashcards
What is the general definition of elimination reactions?
A: Elimination reactions involve the loss of elements from the starting material to form a new π bond in the product.
What type of organic compound typically undergoes elimination reactions?
A: Alkyl halides.
Which type of base is typically involved in elimination reactions?
A: Brønsted-Lowry bases.
What is the product of an elimination reaction involving alkyl halides?
A: An alkene, which contains a new π bond.
What are the two elements typically eliminated in an elimination reaction of alkyl halides?
A: A hydrogen atom (H) and a halogen atom (X), forming HX.
What is the role of the base in an elimination reaction?
A: The base abstracts a proton (H+) from the β-carbon, facilitating the formation of the π bond.
What is the role of the base in an elimination reaction?
A: The base abstracts a proton (H+) from the β-carbon, facilitating the formation of the π bond.
What is the structure of the substrate in a general elimination reaction?
A carbon-carbon single bond (C-C) with one carbon attached to a hydrogen atom (H) and the other attached to a halogen atom (X).
What is the general reaction mechanism of an elimination reaction involving alkyl halides?
A: The base removes a proton from the β-carbon, the electrons form a π bond between the α and β carbons, and the leaving group (X-) departs.
How is the leaving group involved in elimination reactions?
A: The leaving group (X-) departs from the α-carbon, allowing the double bond to form.
What is the main difference between elimination and substitution reactions?
A: Elimination reactions result in the formation of a double bond (alkene), while substitution reactions replace a leaving group with another substituent.
