Question

27. a. Provide a detailed, stepwise mechanism for the following transformation: i + NH;r cat H + NH2R cat H". b. Provide a detailed, stepwise mechanism for the following reactions: c. Provide a detailed, stepwise mechanism for the following reactions: Oorso.o major minor

Answer 1

The complete solution with the detail explanation is given as below:-

a cine stine, A WHER •H a + NH2 R Cat + NH2R oy Done :01 t th th an :Nh ANAR .NH R' -R :01 2 a +H2O (major product CiNH

Ereena e Arch and - PL + heim → tal (major product) This is known as the acylation reaction. the tall By product

substitution © This is a electrophilic reaction ALQ3 се Aeco case- Aromatization (carbocation) the talce, (minor product) (Byproduct )

And if case-② 1/21 shift + x (30 Carbocation) Aromatization the talCl (major product) (By product) since, zo carbo cation is more stable than the e carbo cation.