Identify the starting materials for these target molecules. Only go back one step in the reaction - meaning cleave the target molecule and translate those synthons into synthetic equivalents. N a. O Target Molecule Ph b. Target Molecule

Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
Chapter6: Alkanes & Alkenes
Section: Chapter Questions
Problem 38CTQ
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**Title: Identifying Starting Materials for Target Molecules**

**Objective:**
Learn how to identify the starting materials for given target molecules by cleaving the molecules and translating the synthons into synthetic equivalents.

**Instructions:**
- Begin by examining each target molecule.
- Cleave the target molecule at specific bonds to identify the starting materials.
- Translate the cleaved parts into synthetic equivalents, representing the possible precursors.

**Target Molecules:**

1. **Molecule A:**

   - The structure features a cyclopentane ring with a diazo group (N=N) and ester functionalities.
   - Focus on cleaving the ester linkage and analyzing the remaining substituents.

2. **Molecule B:**

   - This molecule consists of a bicyclic structure with a phenyl (Ph) group attached.
   - Target the cleavage of key bonds to separate the phenyl group and identify simpler cyclic structures as potential starting materials.

**Diagrams:**

- **Target Molecule A**: Contains a cyclopentane ring with a diazo group and two ester groups.
- **Target Molecule B**: Features a bicyclic ring with an ester group attached and a phenyl ring on the side.

**Conclusion:**
By practicing the cleavage of these target molecules and identifying the corresponding synthons, students can enhance their understanding of synthetic chemistry pathways and precursor identification.
Transcribed Image Text:**Title: Identifying Starting Materials for Target Molecules** **Objective:** Learn how to identify the starting materials for given target molecules by cleaving the molecules and translating the synthons into synthetic equivalents. **Instructions:** - Begin by examining each target molecule. - Cleave the target molecule at specific bonds to identify the starting materials. - Translate the cleaved parts into synthetic equivalents, representing the possible precursors. **Target Molecules:** 1. **Molecule A:** - The structure features a cyclopentane ring with a diazo group (N=N) and ester functionalities. - Focus on cleaving the ester linkage and analyzing the remaining substituents. 2. **Molecule B:** - This molecule consists of a bicyclic structure with a phenyl (Ph) group attached. - Target the cleavage of key bonds to separate the phenyl group and identify simpler cyclic structures as potential starting materials. **Diagrams:** - **Target Molecule A**: Contains a cyclopentane ring with a diazo group and two ester groups. - **Target Molecule B**: Features a bicyclic ring with an ester group attached and a phenyl ring on the side. **Conclusion:** By practicing the cleavage of these target molecules and identifying the corresponding synthons, students can enhance their understanding of synthetic chemistry pathways and precursor identification.
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