**Problem XIX:****Title:** Reaction Mechanism for Alkylation**Objective:** Write the mechanism for the alkylation reaction of acetylide anion with bromoethane to give 1-butyne.**Explanation:** The alkylation of acetylide anions involves a nucleophilic substitution reaction where the acetylide anion attacks the bromoethane to form 1-butyne. Here's how the mechanism can be illustrated:1. **Formation of the Acetylide Anion:** - The acetylide anion \((\text{C}_2\text{H}_3^{-})\) is typically generated by deprotonating acetylene \((\text{HC}\equiv\text{CH})\) using a strong base (e.g., sodium amide, \(\text{NaNH}_2\)).2. **Nucleophilic Attack:** - The acetylide anion acts as a nucleophile and attacks the electrophilic carbon atom of bromoethane \((\text{C}_2\text{H}_5\text{Br})\). - This results in the substitution of the bromide ion and the formation of a carbon-carbon bond, yielding 1-butyne \((\text{HC}\equiv\text{CCH}_2\text{CH}_3)\).3. **Leaving Group:** - The bromide ion \((\text{Br}^{-})\) serves as the leaving group, departing with the pair of electrons it shares with the carbon.**Conclusion:**The alkylation reaction transforms an acetylide anion into an extended alkyne chain, effectively increasing the hydrocarbon length by introducing a new alkyl group via nucleophilic substitution. This is a highly useful reaction in organic synthesis for constructing carbon-carbon bonds.

Due to the presence of negative charge in the acetylide anion (H-C≡C-), it is a strong nucleophile…

Answered: Write the mechanism for the alkylation…

Write the mechanism for the alkylation reaction of acetylide anion with bromoethane to give 1-butyne.

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

Similar questions

If pentane-1,3-diol reacts with in the presence of pyridine it gives product A. And if A reacts with in the presence of pyridine it gives a product B. Indicate which products A and B are.
The SN2 reaction is an example of a nucleophilic substitution reaction. Draw the structure of the two reactants and the mechanism of the reaction. The reaction is 1-bromo-3-ethylpentane reacts with cyclohexanol under basic conditions.
Some 2-methyl-2-butene may be produced in the reaction as a by-product. Give a mechanism for its production.
10) For the reaction between isopropyl 1-propyl (or 'n-propyl') ether and HBr, which type of reaction best matches the expected products? A) Acid-catalyzed dehydration B) Nucleophilic substitution reaction C) Ether cleavage reaction D) Nucleophilic addition-elimination reaction
help