**Organic Chemistry Reaction Problem:****Objective:** Identify the major organic product(s) or necessary reagents for each transformation. Include stereochemistry where relevant.**Reactions:**a) **Reactants:** - Starting material: Benzene with two hydroxyl groups (OH) at the para position. - Reagents: Potassium dichromate (K₂Cr₂O₇), sulfuric acid (H₂SO₄), and water (H₂O). **Transformation Description:** - This is likely an oxidation reaction where the hydroxyl groups could be oxidized, usually forming a carboxylic acid.b) **Reactants:** - Starting material: A boronic acid (B(OH)₂) attached to a styrene moiety. - Reagents: A brominated alkene, palladium catalyst (Pd(PPh₃)₄), and sodium hydroxide in aqueous solution (NaOH(aq)). **Transformation Description:** - A Suzuki-Miyaura cross-coupling reaction is expected, forming a new carbon-carbon bond between the brominated alkene and the styrene moiety.c) **Reactants:** - Starting material: Chlorophenol. - Reagents: Bromine (Br₂) and water (H₂O). **Transformation Description:** - Electrophilic aromatic substitution could occur, with bromination likely at the ortho or para position relative to the hydroxyl group.d) **Reactants:** - Starting material: A cyclic boronic ester. - Reagents: A cyclopentylacetylene moiety. **Transformation Description:** - This looks like a boronic ester involved in a coupling reaction, potentially forming a new carbon-carbon bond using the alkyne.e) **Reactants:** - Starting material: Isobutanol. - Reagents: 1) Sodium hydride (NaH), 2) An iodoalkene, 3) G1 Ru Catalyst. **Transformation Description:** - This may involve deprotonation of the alcohol to form an alkoxide, nucleophilic substitution or addition reaction, followed by a metathesis or another type of reaction facilitated by the ruthenium catalyst.**Diagram/Graph Details:**- Currently, no graphs or diagrams contain explicit data or curves to explain numerically or

Answered: Image /qna-images/answer/e2a9cf6f-b59b-420d-937f-5b34d6843d14.jpg

10) Give the major organic product(s) or reagents needed. Show stereochemistry where appropriate а) OH K2C12O7, H2SO4, H2O HO b) Br. B(OH)2 Pd(PPH3)4, NaOH(aq) c) Br2, H20 CI но d) B-H e) 1) NaH 2) 3) G1 Ru Catalyst Lon OH

10) Give the major organic product(s) or reagents needed. Show stereochemistry where appropriate а) OH K2C12O7, H2SO4, H2O HO b) Br. B(OH)2 Pd(PPH3)4, NaOH(aq) c) Br2, H20 CI но d) B-H e) 1) NaH 2) 3) G1 Ru Catalyst Lon OH

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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Concept explainers

Reactions of Ethers

Ethers (R-O-R’) are compounds formed by replacing hydrogen atoms of an alcohol (R-OH compound) or a phenol (C6H5OH) by an aryl/ acyl group (functional group after removing single hydrogen from an aromatic ring). In this section, reaction, preparation and behavior of ethers are discussed in the context of organic chemistry.

Epoxides

Epoxides are a special class of cyclic ethers which are an important functional group in organic chemistry and generate reactive centers due to their unusual high reactivity. Due to their high reactivity, epoxides are considered to be toxic and mutagenic.

Williamson Ether Synthesis

An organic reaction in which an organohalide and a deprotonated alcohol forms ether is known as Williamson ether synthesis. Alexander Williamson developed the Williamson ether synthesis in 1850. The formation of ether in this synthesis is an SN2 reaction.

Question

**Organic Chemistry Reaction Problem:**

**Objective:** Identify the major organic product(s) or necessary reagents for each transformation. Include stereochemistry where relevant.

**Reactions:**

a) **Reactants:**
- Starting material: Benzene with two hydroxyl groups (OH) at the para position.
- Reagents: Potassium dichromate (K₂Cr₂O₇), sulfuric acid (H₂SO₄), and water (H₂O).

**Transformation Description:**
- This is likely an oxidation reaction where the hydroxyl groups could be oxidized, usually forming a carboxylic acid.

b) **Reactants:**
- Starting material: A boronic acid (B(OH)₂) attached to a styrene moiety.
- Reagents: A brominated alkene, palladium catalyst (Pd(PPh₃)₄), and sodium hydroxide in aqueous solution (NaOH(aq)).

**Transformation Description:**
- A Suzuki-Miyaura cross-coupling reaction is expected, forming a new carbon-carbon bond between the brominated alkene and the styrene moiety.

c) **Reactants:**
- Starting material: Chlorophenol.
- Reagents: Bromine (Br₂) and water (H₂O).

**Transformation Description:**
- Electrophilic aromatic substitution could occur, with bromination likely at the ortho or para position relative to the hydroxyl group.

d) **Reactants:**
- Starting material: A cyclic boronic ester.
- Reagents: A cyclopentylacetylene moiety.

**Transformation Description:**
- This looks like a boronic ester involved in a coupling reaction, potentially forming a new carbon-carbon bond using the alkyne.

e) **Reactants:**
- Starting material: Isobutanol.
- Reagents: 1) Sodium hydride (NaH), 2) An iodoalkene, 3) G1 Ru Catalyst.

**Transformation Description:**
- This may involve deprotonation of the alcohol to form an alkoxide, nucleophilic substitution or addition reaction, followed by a metathesis or another type of reaction facilitated by the ruthenium catalyst.

**Diagram/Graph Details:**
- Currently, no graphs or diagrams contain explicit data or curves to explain numerically or

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