What is the product of the reaction of 1-pentyne with H2 in the presence of Lind
Practice Questions
Q1
What is the product of the reaction of 1-pentyne with H2 in the presence of Lindlar's catalyst?
Pentane
1-pentene
2-pentene
1-butyne
Questions & Step-by-Step Solutions
What is the product of the reaction of 1-pentyne with H2 in the presence of Lindlar's catalyst?
Step 1: Identify the starting material, which is 1-pentyne. This is an alkyne with a triple bond between the first and second carbon atoms.
Step 2: Understand that we are using H2 (hydrogen gas) in the reaction. This means we will be adding hydrogen to the molecule.
Step 3: Recognize that Lindlar's catalyst is a special type of catalyst that helps in the hydrogenation process. It is used to convert alkynes to alkenes without fully saturating them to alkanes.
Step 4: When 1-pentyne reacts with H2 in the presence of Lindlar's catalyst, the triple bond (C≡C) is converted to a double bond (C=C).
Step 5: The result of this reaction is the formation of cis-2-pentene, which has the double bond between the second and third carbon atoms and the two substituents on the same side (cis configuration).
