The correct statement about the synthesis of | vedclass

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(A) Pentaerythritol is produced by a base-catalyzed reaction of acetaldehyde with excess formaldehyde. First,three moles of formaldehyde undergo aldol

Vedclass · Accepted Answer

The synthesis requires three aldol condensations and one Cannizzaro reaction

Vedclass · Answer

(A) Pentaerythritol is produced by a base-catalyzed reaction of acetaldehyde with excess formaldehyde. First,three moles of formaldehyde undergo aldol condensation with one mole of acetaldehyde to form pentaerythrose: $CH_3CHO + 3HCHO 	o C(CH_2OH)_3CHO$. This is followed by a crossed Cannizzaro reaction between the intermediate and another mole of formaldehyde to yield pentaerythritol and sodium formate: $C(CH_2OH)_3CHO + HCHO + NaOH 	o C(CH_2OH)_4 + HCOONa$. Thus,the process involves three aldol condensations and one Cannizzaro reaction.

The correct statement about the synthesis of pentaerythritol $(C(CH_2OH)_4)$ used in the preparation of $PETN$ is

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