Choose the reagents required to carry out the shown transformation: H -CEC- 01. 03 BH3, H202 H2, Lindlar's catalyst 3. A none of the choices is correct Li, NH3 5.
Choose the reagents required to carry out the shown transformation: H -CEC- 01. 03 BH3, H202 H2, Lindlar's catalyst 3. A none of the choices is correct Li, NH3 5.
Chemistry
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...
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Transcribed Image Text:**Transformation Reaction Question**
**Question:**
Choose the reagents required to carry out the shown transformation.
**Chemical Reaction:**
- A linear alkyne (triple-bonded carbon) is transformed into an alkene (cis-configured double-bonded carbon) with two specific hydrogen placements (H).
**Options:**
1. \( \text{O}_3 \)
2. \( \text{BH}_3, \text{H}_2\text{O}_2 \)
3. \( \text{H}_2, \text{Lindlar’s catalyst} \)
4. None of the choices is correct.
5. \( \text{Li, NH}_3 \)
**Explanation of Diagram:**
- The left part shows a linear alkyne structure.
- The right part shows a linear alkene with a cis configuration, indicated by two hydrogens on the same side of the double bond.
**Correct Answer:**
Option 3: \( \text{H}_2, \text{Lindlar’s catalyst} \)
This option is typically used for converting alkynes to cis-alkenes.
Expert Solution
Step 1
The reduction of alkynes to trans-alkenes using sodium in ammonia solvent.
The given reaction is as follows,
Step 2
The formation of trans alkene from an alkyne is obtained by Li, NH3.
The reaction is as follows,
Step by step
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