**Title: Hydrogenation of Alkynes Using Lindlar Catalyst****Description:****Reaction Overview:**The chemical reaction involves the partial hydrogenation of an alkyne to an alkene using a Lindlar catalyst. The unsaturated starting compound is a long-chain ester with the following structure:- **Structure**: HOCH₂-C≡C-(CH₂)₇-C(O)OCH₃- **Reagent**: H₂ (Hydrogen gas)- **Catalyst**: Lindlar catalyst**Explanation:**The molecule consists of an alkyne group (a triple bond between carbons), which is a linear structure. The Lindlar catalyst, which is a palladium catalyst poisoned with lead salts, facilitates the selective hydrogenation of the triple bond to a cis-alkene without further reduction to an alkane. This is essential for forming alkenes with specific geometric configurations.**Product of the Reaction:**Upon reaction with hydrogen in the presence of Lindlar catalyst, the alkyne group (-C≡C-) is converted to a cis-alkene (C=C) while maintaining the rest of the molecular structure intact. The expected product will maintain the ester functionality and other groups present in the starting material.

Lindlar catalyst: Alkynes can be selectively reduced to an alkene by Lindlar catalyst. The Lindlar…

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Draw the product(s) of the following reactions. H2 HOCH2-CEC-(CH2)7- OCH3 Lindlar catalyst

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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Question

**Title: Hydrogenation of Alkynes Using Lindlar Catalyst**

**Description:**

**Reaction Overview:**

The chemical reaction involves the partial hydrogenation of an alkyne to an alkene using a Lindlar catalyst. The unsaturated starting compound is a long-chain ester with the following structure:

- **Structure**: HOCH₂-C≡C-(CH₂)₇-C(O)OCH₃
- **Reagent**: H₂ (Hydrogen gas)
- **Catalyst**: Lindlar catalyst

**Explanation:**

The molecule consists of an alkyne group (a triple bond between carbons), which is a linear structure. The Lindlar catalyst, which is a palladium catalyst poisoned with lead salts, facilitates the selective hydrogenation of the triple bond to a cis-alkene without further reduction to an alkane. This is essential for forming alkenes with specific geometric configurations.

**Product of the Reaction:**

Upon reaction with hydrogen in the presence of Lindlar catalyst, the alkyne group (-C≡C-) is converted to a cis-alkene (C=C) while maintaining the rest of the molecular structure intact. The expected product will maintain the ester functionality and other groups present in the starting material.

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