6. Provide the mechanism and the major organic product of the reaction below. H₂C CH3 NaCN CH

4. Provide a mechanism for the following reaction. H₂SO4, H₂O HgSO4 en

Provide the structure(s) of the expected major organic product of the reaction shown. 1) Disiamylborane 2) H₂O₂, NaOH OI O II ||| O IV OV CH3CH₂C(CH3)2C=CH OH OH xx xo IV

5. Predict the major product in the following reactions. MeO. CHO heat

Q17. Compound 1 can undergo an intramolecular reaction to give cyclic product 2. Using curly arrows, show the mechanism of this reaction – note that the mechanism involves more than one elemental step - and draw the structure of 2; chemical formula is provided as guidance. H2N. C5H9NO CH;OH 2

Predict the major product of the given reaction and then draw a reasonable mechanism for the product formation using appropriate curved arrow notation. Part 1: OH H2SO4 (aq) view structure Part 2 out of 4 H,0 H,SO4 HSO, HO finish structure . draw structure . H;O*

1

Complete the following reactions by identifying the majority product(s) or the reaction conditions that are missing. No mechanism is needed

C Show the complete mechanism and the product formed. AlCl3 ?

Which compound is the major product of the reaction below? QH (1) LIAIH,/ether N. N. N. (2) H* (dil.)/H,O (A) (B) HO, (C) (D) O Compound B O Compound A Compound C Compound D