Question

please help me solve both of these!!

Write the complete stepwise mechanism for the acid catalyzed hydrolysis of the compound shown. Show all intermediates, indicate with curved arrows the movement of electrons and show all formal charges and lone pairs of electrons where relevant.

Answer 1

Question 1

Question 2.

Write the complete stepwise mechanism for the acid catalyzed hydrolysis of the compound shown. Show all intermediates, indicate with curved arrows the movement of electrons and show all formal charges and lone pairs of electrons where relevant. Los ori Proton addition ano One Clone pair resonates) -H OH Cleavage حلى (2 methge propansic auid) Sigma bona + OH Calcohol)

Write the structure of the Michael addition product and the final Robinson annulation product when using the following starting materials. Hint: the dialdehyde is the Michael donor and the ketone is the Michael acceptor. Hy H re Michael addition product Robinson annulation product H H Hy het baie go H (Michael donor) sell CH3 OHC. CHO ht CH2 = 20 9 lo ro oo (total ll atoms)

ОС CHO o Hс CHO 3 4 р Зе 8 10 (tow'll atoms) = со 4. ОӨС Сп, bane CH3 CHO H (1) (4) ое 6

CH3 CHO CH3 CHO HY G bond between C, and ( Gmembered ting co 111 cyclizari ons are CHO very much favoured) 8 CHO CHO Ht < HOF from solvent CHO CHO -H2O HO Answer.

First red square is the Michael adduct

second red square is the Robinson annulation product