Which of the following reagents can be used to convert alkyl halide into alkane ?

Options

A. (a) Action of Grignard reagent
B. (b) Action of `Bu_(3)SnH`
C. (c) Action of superacid
D. (d) Action of `K^(+)O^(-)C(CH_(3))`

Answer

To convert an alkyl halide (RX) into an alkane (RH), we can use tributyltin hydride (Bu3SnH) as a reagent. Here’s a step-by-step breakdown of the process:

### Step 1: Identify the Alkyl Halide
- Start with an alkyl halide, which can be represented as RX, where R is the alkyl group and X is the halogen (Cl, Br, or I).

### Step 2: Reaction with Tributyltin Hydride
- When the alkyl halide (RX) is treated with tributyltin hydride (Bu3SnH), a radical reaction occurs. The tributyltin hydride acts as a source of hydrogen.

### Step 3: Formation of Alkyl Radical
- The reaction proceeds by the formation of a radical. The tributyltin hydride donates a hydrogen atom, which leads to the formation of an alkyl radical (R•) and tributyltin halide (Bu3SnX).

### Step 4: Hydrogen Atom Transfer
- The alkyl radical (R•) then reacts with another hydrogen radical (H•) that is generated from another molecule of tributyltin hydride. This step leads to the formation of the alkane (RH).

### Step 5: Final Products
- The final products of the reaction are the alkane (RH) and tributyltin halide (Bu3SnX). The overall reaction can be summarized as:
\[ RX + Bu3SnH \rightarrow RH + Bu3SnX \]

### Conclusion
- Therefore, the reagent that can be used to convert alkyl halide into alkane is tributyltin hydride (Bu3SnH).