Select the appropriate reagents for the following transformation at –78°C. Select the appropriate reagents for the…
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Question “Select the appropriate reagents for the following transformation at –78°C. Select the appropriate reagents for the…”
Select the appropriate reagents for the following transformation
at –78°C.
Select the appropriate reagents for the following transformation at -78 degree C. LiAlH_4, Et_2 O EtOAc H_2 O DIBAL-H H_2 O PCC/CH_2 Cl_2/room temperature Li^+[AlH(OtBu)_3]^- H_2 O NaBH_4 H_2 O
Answer
LiAIH_2 can reduce carbonyl compounds as well as acid derivatives to alchols. It is not recommended for aldehyde from acids chloride. DIBAL converts an ester/nitrite to an aldehyde. It is not an aldehyde reagent from acid chloride. This is unlike lithium aluminium hydroide (LiALH_2) [C (CH_3)_3]_3, which is much more controlled. NaBH_2 is a selective reducing agent for carbonyl compound of aldehydes and ketones to the corresponding alcohols.
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