Question

Draw a complete electron pushing mechanism for the following reaction.

HOA AN Hg2*, H₂SO4 (dil) H2O, A HO) OH HO (10 pts) A)

Answer 1

n Hat Hy sou u-cc= cc-n H2O, on би Hydration of Alkyne : at Step 1 :- enol formation u-C с= C-C — и + H+ ou ou n и — c— С С— P (formation of Carbocation) M, D: 4 4 HC C-4 + on M 애 + H H-C c= 1 on (грн OH

Date Page No. Step 2: Tautomerization 4 H И - С — С. -CH on n 1 fon 04 Protonate Carbon de +4+ И И CH2 с С C-H - Фи h on + H₂ Deprotonate Oxygen Il CH2 e-4 Dn OH