(b) 1. CH3CH₂COCI, AICI3 2. Br₂, CH3CO₂H 3. K*tBuO- 4. OsO4 then NaHSO3 5. H₂CRO4

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Chapter1: Chemical Foundations
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The image depicts a sequence of chemical reactions that are applied to benzene. The steps are numbered from 1 to 5 with corresponding reagents:

1. **Reagents:** CH₃CH₂COCl, AlCl₃
   - This suggests a Friedel-Crafts acylation reaction where benzene will likely undergo electrophilic aromatic substitution to introduce an acyl group.

2. **Reagents:** Br₂, CH₃CO₂H
   - This indicates a bromination step. The use of acetic acid suggests a solvent presence, leading to bromination of the aromatic ring.

3. **Reagents:** K⁺ tBuO⁻
   - This is a strong base, often used for elimination reactions, deprotonation, or other transformations.

4. **Reagents:** OsO₄ then NaHSO₃
   - Osmium tetroxide (OsO₄) is typically used for dihydroxylation of alkenes, followed by reduction with sodium bisulfite (NaHSO₃).

5. **Reagents:** H₂CrO₄
   - This indicates an oxidative step, as chromic acid is commonly used for oxidizing alcohols to ketones or carboxylic acids.

Below the chemical sequence, there is an empty workspace for drawing structures using the ChemDoodle software. Various tools are available, indicated by icons, for constructing chemical structures, drawing bonds, rings, and other molecular modifications. However, no specific diagram or graph is currently present in this workspace.
Transcribed Image Text:The image depicts a sequence of chemical reactions that are applied to benzene. The steps are numbered from 1 to 5 with corresponding reagents: 1. **Reagents:** CH₃CH₂COCl, AlCl₃ - This suggests a Friedel-Crafts acylation reaction where benzene will likely undergo electrophilic aromatic substitution to introduce an acyl group. 2. **Reagents:** Br₂, CH₃CO₂H - This indicates a bromination step. The use of acetic acid suggests a solvent presence, leading to bromination of the aromatic ring. 3. **Reagents:** K⁺ tBuO⁻ - This is a strong base, often used for elimination reactions, deprotonation, or other transformations. 4. **Reagents:** OsO₄ then NaHSO₃ - Osmium tetroxide (OsO₄) is typically used for dihydroxylation of alkenes, followed by reduction with sodium bisulfite (NaHSO₃). 5. **Reagents:** H₂CrO₄ - This indicates an oxidative step, as chromic acid is commonly used for oxidizing alcohols to ketones or carboxylic acids. Below the chemical sequence, there is an empty workspace for drawing structures using the ChemDoodle software. Various tools are available, indicated by icons, for constructing chemical structures, drawing bonds, rings, and other molecular modifications. However, no specific diagram or graph is currently present in this workspace.
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