1. Compounds A, B, and C are constitutional isomers with formula C¸H,Cl. Reaction of compound A with sodium methoxide gives trans-2-butene as the major product, while reactions of compound B or compound C with sodium methoxide gives a different disubstituted alkene as the major product. Draw structures of A, B, and C.

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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Learning Target 11**

**Criteria for satisfactory score**

Reactants, products, and reagents that complete a reaction scheme must specify compounds, not generic categories. Reagents and structures must be valid Lewis structures. Curved arrow mechanisms may contain one minor error (wrong arrow, missing formal charge, etc.)

**Tasks**

1. Compounds A, B, and C are constitutional isomers with the formula C₄H₉Cl. Reaction of compound A with sodium methoxide gives *trans*-2-butene as the major product, while reactions of compound B or compound C with sodium methoxide give a different disubstituted alkene as the major product. Draw structures of A, B, and C.
2. Complete the reactions shown in Figure 9 by providing structures of reactants and/or products in empty spaces as well as reagents and reaction conditions (solvent, temperature, etc.) above/below reaction arrows that don’t have reagents and reaction conditions specified.

**Diagrams in Figure 9**

1. A boxed section labeled “electrophile” plus a boxed section labeled “nucleophile” undergo an Sₙ2 reaction in the presence of a solvent to form the product pictured as a branched molecule with sulfur.

2. A reaction sequence:
   - The transformation of an alcohol group (OH) into a tosylate group (OTs) followed by the reformation into an alcohol.

3. Another reaction sequence:
   - An alkene reacts in two steps: first with NBS and acyl peroxide, then with t-BuOK and heat.

These diagrams represent reaction mechanisms where specified reagents and conditions lead to specific products.
Transcribed Image Text:**Learning Target 11** **Criteria for satisfactory score** Reactants, products, and reagents that complete a reaction scheme must specify compounds, not generic categories. Reagents and structures must be valid Lewis structures. Curved arrow mechanisms may contain one minor error (wrong arrow, missing formal charge, etc.) **Tasks** 1. Compounds A, B, and C are constitutional isomers with the formula C₄H₉Cl. Reaction of compound A with sodium methoxide gives *trans*-2-butene as the major product, while reactions of compound B or compound C with sodium methoxide give a different disubstituted alkene as the major product. Draw structures of A, B, and C. 2. Complete the reactions shown in Figure 9 by providing structures of reactants and/or products in empty spaces as well as reagents and reaction conditions (solvent, temperature, etc.) above/below reaction arrows that don’t have reagents and reaction conditions specified. **Diagrams in Figure 9** 1. A boxed section labeled “electrophile” plus a boxed section labeled “nucleophile” undergo an Sₙ2 reaction in the presence of a solvent to form the product pictured as a branched molecule with sulfur. 2. A reaction sequence: - The transformation of an alcohol group (OH) into a tosylate group (OTs) followed by the reformation into an alcohol. 3. Another reaction sequence: - An alkene reacts in two steps: first with NBS and acyl peroxide, then with t-BuOK and heat. These diagrams represent reaction mechanisms where specified reagents and conditions lead to specific products.
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