What will be the product obtained when (CH3)2CHCHO is treated with NaOH at 200° C ?

Question

What will be the product obtained when (CH3)2CHCHO is treated with NaOH at 200° C ? (A)  (CH3)2CHCO2Na and (CH3)2CHCH2OH  (B)  (CH3)2CHCO2H  (C)  (CH3)2CHCH2OH  (D)  (CH3)2C(CHO)—CH(OH)CH(CH3)2

Tardigrade Admin · Accepted Answer

underset text2-Methylpopanal 2(CH3)2CHCHO xrightarrow[200°C]NaOH <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/324d39a243a947d30cb82d44f298defa-.jpeg" /> 2-Methylpropanol undergoes Cannizzaro reaction on treating with NaOH at high temperature even it contains an α-hydrogen. This is an exceptional behaviour, it should undergo aldol reaction but it does not, as carbanion formed is unstable

Q. What will be the product obtained when $(C H_{3})_{2} C H C H O$ is treated with $N a O H$ at $20 0^{\circ} C$ ?

$(C H_{3})_{2} C H C O_{2} N a$ and $(C H_{3})_{2} C H C H_{2} O H$

$(C H_{3})_{2} C H C O_{2} H$

$(C H_{3})_{2} C H C H_{2} O H$

$(C H_{3})_{2} C (C H O) — C H (O H) C H (C H_{3})_{2}$

Q. What will be the product obtained when (CH3​)2​CHCHO is treated with NaOH at 200∘C ?

(CH3​)2​CHCO2​Na and (CH3​)2​CHCH2​OH

(CH3​)2​CHCO2​H

(CH3​)2​CHCH2​OH

(CH3​)2​C(CHO)—CH(OH)CH(CH3​)2​

2-Methylpopanal2(CH3​)2​CHCHO​NaOH200∘C​ 2-Methylpropanol undergoes Cannizzaro reaction on treating with NaOH at high temperature even it contains an α-hydrogen. This is an exceptional behaviour, it should undergo aldol reaction but it does not, as carbanion formed is unstable

Q. What will be the product obtained when $(C H_{3})_{2} C H C H O$ is treated with $N a O H$ at $20 0^{\circ} C$ ?

$(C H_{3})_{2} C H C O_{2} N a$ and $(C H_{3})_{2} C H C H_{2} O H$

$(C H_{3})_{2} C H C O_{2} H$

$(C H_{3})_{2} C H C H_{2} O H$

$(C H_{3})_{2} C (C H O) — C H (O H) C H (C H_{3})_{2}$