Answer / rajender

yes we can prepare using Potassium
Diisobutyl-t-butoxyaluminum Hydride (PDBBA)
find attached journal: Bull. Korean Chem. Soc. 2007, Vol.
28, No. 12
Chemoselective Reduction of Esters to Aldehydes by Potassium
Diisobutyl-t-butoxyaluminum Hydride (PDBBA)

Answer / prasad

for this we use :DIBAL(Di-isobutyl aluminium hydride),dry
DCM solvent; at -78 degrees temperature ;quinching with MeOH
+ saturated sodium potassium Taurtarate

Answer / rajesh

using DIBAL

Answer / sayanmukherjee

aldehyde converted to RCOOH by oxidation n then acid converted to ester by ethanol n H+ catalyst

Answer / madhusudhan

inisially by tret with LiALh4 THEN OFTER OXYDATION

Answer / vinodreddy kondreddy

ester hydrolysis with base to give the alcohol.alcohol oxidation with sodium hypo chloride to give the aldihyde

Answer / guest

esters are hydrolysis to form aldehydes

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