The number of moles of H 2 which are used up in the catalytic hydrogenation of one mole of a triglyceride containing given compounds is to be calculated. Concept Introduction: Fatty acids contain carboxylic group at the end of long hydrocarbon chain. On the basis of the presence of double bonds, there are two types of fatty acids, saturated fatty acid and unsaturated fatty acid. The double bonds between carbon atoms are absent in saturated fatty acids, whereas unsaturated fatty acids possess at least one double bond between carbon atoms.

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(a) The following synthesis of the molecule shown in the circle has a major problem. What is this problem? (2 pts) 1) HBr (no peroxides) 2) H- NaNH2 Br 3) NaNH, 4) CH3Br 5) H2, Pd (b) Starting with the molecule shown below and any other materials with two carbons or less, write out an alternate synthesis of the circled molecule. More than one step is needed. Indicate the reagent(s) and the major product in all the steps in your synthesis. (5 pts) 2024 Fall Term (1) Organic Chemistry 1 (Lec) CHEM 22204 02[6386] (Hunter College) (c) Using the same starting material as in part (b) and any other materials win two carpons or less, write out syntheses of the circled molecules shown below. More than one step is needed in each case. Indicate the reagent(s) and the major product in all the steps in your synthesis. You may use reactions and products from your synthesis in part (b). (5 pts)

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Chapter 21, Problem 21.14P

Interpretation Introduction

Interpretation:

The number of moles of H2 which are used up in the catalytic hydrogenation of one mole of a triglyceride containing given compounds is to be calculated.

Concept Introduction:

Fatty acids contain carboxylic group at the end of long hydrocarbon chain. On the basis of the presence of double bonds, there are two types of fatty acids, saturated fatty acid and unsaturated fatty acid. The double bonds between carbon atoms are absent in saturated fatty acids, whereas unsaturated fatty acids possess at least one double bond between carbon atoms.

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(a) The following synthesis of the molecule shown in the circle has a major problem. What is this problem? (2 pts) 1) HBr (no peroxides) 2) H- NaNH2 Br 3) NaNH, 4) CH3Br 5) H2, Pd (b) Starting with the molecule shown below and any other materials with two carbons or less, write out an alternate synthesis of the circled molecule. More than one step is needed. Indicate the reagent(s) and the major product in all the steps in your synthesis. (5 pts) 2024 Fall Term (1) Organic Chemistry 1 (Lec) CHEM 22204 02[6386] (Hunter College) (c) Using the same starting material as in part (b) and any other materials win two carpons or less, write out syntheses of the circled molecules shown below. More than one step is needed in each case. Indicate the reagent(s) and the major product in all the steps in your synthesis. You may use reactions and products from your synthesis in part (b). (5 pts)

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