Question

Obtineti butan din acid propanoic, va rog.

Answer 1

CH3CH2COOH + PCl5 ---> CH3CH2COCl + POCl3+ HCl

CH3CH2COCl + NH3 =>  CH3CH2CONH2 + HCl

CH3CH2CONH2 + PCl5 ---> CH3CH2CN + POCl3 + 2HCl

CH3CH2CN + 2H2 ---Ni--> CH3CH2CH2-NH2

CH3CH2CH2-NH2 + HONO ----> CH3CH2CH2-OH + N2 + H2O

CH3CH2CH2-OH + HCl ----> CH3CH2CH2-Cl + H2O

CH3CH2CH2-Cl + KCN --toC--> CH3CH2CH2-CN + KCl

CH3CH2CH2-CN + 2H2 ---Ni--> CH3CH2CH2CH2-NH2

CH3CH2CH2CH2-NH2 + HONO ----> CH3CH2CH2CH2-OH + N2 + H2O

CH3CH2CH2CH2-OH + H2 --Ni--> CH3CH2CH2CH3 + H2O