:0: : 0: :0: H step 5 H ö: + H products :0: :0 H step 6 Mechanism for acetal formation from butanal and propanol step 1 step 4 :0 .H H H -H₂O H H H step 5 ة step 2 16 H H .. :0-H H. H+ :0 :0: step 3 step 6

What is the major organic product of the following reaction sequence? Ol Oll O III OIV NH₂ II CN Br: 1. NaCN 2. LIAIH4 3. H₂O* III NH₂ IV. :0: NH₂

What is the product of the following reaction: Br2 / FeBr3 ?? H. N- Br H. N- Br N- Br H. Br-

Synthesis

Mechanism: A reaction mechanism for the following reaction is shown below. H+ CEN CEN: N-H || -C-OH H₂O, H* Step 1 Step 3 N-H C-OH C=N-H H₂O Step2 .C=N-H H-O-H Semse anls a) The overall reaction is an example of b) Step 1 is c) Step 3 is d) Draw in the curved arrows for each step. e) Identify the nucleophiles and electrophiles where appropriate. f) Fill in the reaction energy diagram. C=N-H H₂O: rate determining step E个 reaction progress →

1. What is final product? 2. What are the 4 reactions & steps in mechanism (show product and mechanism steps)? 3. It is kinetic or thermodynamic?

Which of the following represents an enolate? of I. O I. only II. and III. O III. only O I. and III. II. III.

Draw curved arrows to show how the reaction forms the product .

A set of three nucleophilic displacement reactions is shown below: CH3 CH3 CH3 CH3 CH3 CH,CHCH,CH,CCH,CI CH,CHCH,CH,CCH,CH, CH,CHCHCH,CHCH;CH,CH, CH;CHCHCH,CH2CH,CH,CH3 CH3 CI C H2O, HCO2H SN1 reaction Which reaction (A, B, or C) proceeds the fastest? Which reaction (A, B, or C) proceeds the slowest?