Predict the major organic product for the following reaction sequence, and then determine the stereochemical nature of the final product. 1) NaBH4, MeOH 2) TBDMSCI 3) a. Etli, b. H3O+ 4) Bu4N+F ?

PART C: Provide the major organic product(s) that complete the following reaction equations. Please include stereochemistry (R/S, E/Z) where applicable 1) H2 Lindlars cat. 2)Ch, DCM 8) Me H. 9) 1) PBr3 pyridine 2) NACN ÕH 10) OH (cat.) 'Me A 11) 1) H2SO, HO 2) NaOCI CHCOH, 0°C

1. What type of reaction is occuring in step 3? (halogenation, hydrohalogenation, reduction, keto–enol tautomerism, dehydrohalogenation, acid-catalyzed hydration, base-catalyzed hydration) 2. Which reagent is necessary for step 3? (Br2, HBr, H2/Pt, NaNH2, H20/H2SO4/HgSO4)

C. b. d. HN a. 4. Predict-the-Product ). Draw the structure(s) of the major organic product(s) formed in the following reactions. Please indicate stereochemistry where appropriate. NO₂ A ОН LOH NO₂ Br CI CI O NaOH CO₂ (high pressure) H₂O (H* workup) 1. NaCN 2. LiAlH4 (H* workup) H₂, Pd/C NaOH, A sbou bluow

MN.18.

Predict the product(s) of the following reactions. Indicate stereochemistry where appropriate for full credit.

For the following reaction, H2O a. List all expected organic and covalent products. b. Indicate what mechanism is followed as either Sn1 or Sn2. c. For each organic product, write out a mechanism using arrow notation and any necessary transition states. Remember to include stereochemistry where necessary and required.

Predict the major organic product for the following reaction sequence, and then determine the stereochemical nature of the final product.

3. Predicting Products: Draw the structures of the major organic reagents / products of the reaction in the boxes provided. Stereochemistry should be shown if applicable. Br2 hv one major product

2. Complete the following reaction wheel providing structures or reagents where needed. Show stereochemistry where necessary. d e j 1). BH3.THF 2). H₂O₂, OH* 1). Na 2). CH3CH₂Br 1). CH3MgBr 2). H3O+ a 2). H3O+ с j 1 k 1). CH3CH₂MgBr CrO3, H+ TSCI Pyridine 1. Br₂, H₂O h Mal H*/heat OH