Identify the reagents used for the following conversion O CH3 CHO A OH OH CHO CHO B OH CHO C O (A) A = LiAlH4, B = NaOH(aq), C = NH2–NH2/KOH, ethylene glycol (B) A = LiAlH4, B = NaOH(alc), C =Zn/HCl (

Question

Identify the reagents used for the following conversion O CH3 CHO A OH OH CHO CHO B OH CHO C O

(A) A = LiAlH4, B = NaOH(aq), C = NH2–NH2/KOH, ethylene glycol
(B) A = LiAlH4, B = NaOH(alc), C =Zn/HCl
(C) A = DIBAL-H, B= NaOH(aq), C = NH2–NH2/KOH, ethylene glycol
(D) A = DIBAL-H, B = NaOH(alc), C = Zn/HCl

Prashant Kotian · Accepted Answer

Correct answer: D. OCH3 O CHO HO CHO CHO HO (A) DIBAL–H {Selective reduction of ester} (B) NaOH (alc.) Intramolecular Aldol CHO OH Zn/HCl (C) (Clemmensen reduction)

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