Predict the product of reaction of
sulfonation with benzaldehyde.

Explanation

To predict the product of the reaction of sulfonation with benzaldehyde, we can follow these steps:

### Step 1: Identify the structure of benzaldehyde
Benzaldehyde is an aromatic compound with the formula C6H5CHO. It consists of a benzene ring (C6H5) with a formyl group (-CHO) attached to it.

### Step 2: Understand the effect of the aldehyde group
The -CHO group is an electron-withdrawing group due to its -M (minus mesomeric) effect. This means that it pulls electron density away from the benzene ring, making it less nucleophilic. As a result, it influences the position where electrophiles will add to the aromatic ring.

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