Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
Ph−CH−CH=CH−CH2−OH,Ph−CH2−CH2−OH
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Ph−CH=CH−CH2−OH,Ph−CH2−CH2−CH2−OH
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
None of these
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is BPh−CH=CH−CH2−OH,Ph−CH2−CH2−OH Sodium borohydride (NaBH4) reduces cinnamaldehyde via 1,2− reduction in a hydroxylic solvent to cinnamyl alcohol. Thus, Ph−CH=CH−CHONaBH4⟶Ph−CH=CH−CH2−OH
But LiAlH4, being stronger reducing agent compared to NaBH4. Cinnamaldehyde undergoes 1,2− reduction with LiAlH4 to give the following reaction.
Thus, Ph−CH=CH−CHOLiAlH4⟶Ph−CH2−CH2−CH2OH ass shown above.