Write curved arrow mechanisms for TWO of the following reactions. CN CH NH2 1. LiAlH4 a)...

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Question

Answer 1

Answer #1

I a) NJ L; LIATH = 7 # - Al-H H H Mechanism : 5.7 EN-AOLO *** N # AI H C -H LiAlHH donales H 2nd HO donation. H + Holt H- Li

a) reduction of nitriles

b) acidic hydrolysis of nitriles

b) H2504/+20 = Ht (acidic medium Mechanism: • Ht H at R-C=N-H ĆEN: EN Hző R-C=N-H I + oH₂ H₂O 1L + + H20 R-C=NH R-ė Z NH 2 OH

t Ohz OH H₂O HT 074 R-C-NH₂ R- NH2 Ree -NH₂ 4 OH OH OH + oH -NH3 10 NH3 7 & R-c -OH 2 R-c-oh NHA

R = phenyl ring.

Answer 2

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