Chapter 19.8, Problem 26CC

(a)

Interpretation Introduction

Interpretation:

The given reagents used to accomplish the target products (major product) transformation should be draw and identified.

Concept Introduction:

Raney nickel is an alloy of aluminum and nickel, which has subsequently had much of the aluminum removed through a leaching process with sodium hydroxide.

Uses of raney nickel: Raney nickel is used most for is its unusable property of reducing C-S bonds to C-H bonds.

Sulfur Nucleophiles:

When a cyclic thio acetal is treated with the Raney nickel through desulfurization process forms alkanes.

Intermediate: Intermediates are formed in the middle of the reaction state which activation energy is very high.

To predict: The reagents used to accomplish the given transformation (a).

(b)

Interpretation Introduction

Interpretation:

The given reagents used to accomplish the target products (major product) transformation should be draw and identified.

Concept Introduction:

Raney nickel is an alloy of aluminum and nickel, which has subsequently had much of the aluminum removed through a leaching process with sodium hydroxide.

Uses of raney nickel: Raney nickel is used most for is its unusable property of reducing C-S bonds to C-H bonds.

Sulfur Nucleophiles:

When a cyclic thio acetal is treated with the Raney nickel through desulfurization process forms alkanes.

Intermediate: Intermediates are formed in the middle of the reaction state which activation energy is very high.

To predict: The reagents used to accomplish the given transformation (a).