Question

Fill in the reagents for the given conversion

$CH_{3}COCl\overset{\left(X\right)}{ \rightarrow }CH_{3}CHO\overset{\left(Y\right)}{ \rightarrow }CH_{3}-\overset{O H}{\overset{\left|\right.}{C} H}-CH_{2}CHO\overset{\left(Z\right)}{ \rightarrow }CH_{3}CH=CHCHO$

X	Y	Z
$pd/BaSO_{4}$	dil. NaOH	heat
NaOH	Hydrolysis	heat
$I_{2} / N a O H$	$LiAlH_{4}$	$H_{3}O^{+}$
$CrO_{3}$	Warm	$CO_{2}$

• A. A
• B. B
• C. C
• D. D

Answer 1

Answer: (A)

$CH_{3}COCl\underset{\left(\right. X \left.\right)}{\overset{P d / B a S O_{4}}{ \rightarrow }}CH_{3}CHO\underset{\left(\right. Y \left.\right)}{\overset{ d i l . \text{ NaOH} }{ \rightarrow }}\underset{\left(\right. A l d o l \left.\right)}{C H_{3} - \overset{O H}{\overset{\left|\right.}{C} H} - C H_{2} C H O}\underset{\left(\right. Z \left.\right)}{\overset{ h e a t }{ \rightarrow }}\underset{C r o t o n a l d e h y d e}{C H_{3} C H = C H C H O}$