Aromatic Aldehydes Ketones and Acids - Result Question 6
7. In the following reactions, the product $S$ is
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Answer:
Correct Answer: 7. (a)
Solution:
- Key Idea: Grignard reagent usually attacks on $>C=O$ group as :
The question is related to above reaction only with the condition that the consumption of $R \operatorname{Mg} X$ will be more than 1 equivalent in some of the given cases.
Among the given compounds $B$, i.e.
contain additional groups which can give active hydrogens. Grignard reagents produce alkanes whenever come in contact with any group or compound which can give active hydrogen as:
These reactions are equivalent to acid-base reactions. So, in both of these compounds more than one equivalent will be required to form Grignard products. Remember these compounds will give 2 type of products as:
(i) from the $>C=O$ group
(ii) from the group which release active hydrogen
The additional reactions involved are: <img src=“https://temp-public-img-folder.s3.amazonaws.com/sathee.prutor.images/sathee_image/cropped_2024_01_16_b4fdca9f34924034e8d8g-457_jpg_height_342_width_718_top_left_y_1472_top_left_x_1256.jpg"width="440">
BETA
