4 (12 marks) For each of the following reactions, predict the MAJOR product with correct stereochemistry...
4 (12 marks) For each of the following reactions, predict the MAJOR product with correct stereochemistry NaSCH: CH,SH Se(CH3)2, NaOH NaOH hint product basa Satominating OTS ethanol
4. (12 marks) For each of the following reactions, predict the MAJOR product with correct stereochemistry (a) NaSCH: CH3SH Se(CH3)2 DMF NaOH SH hint:product has a Satom in a ring (d) OTS ethanol
4. (12 marks) For each of the following reactions, predict the MAJOR product with correct stereochemistry. 4. (12 marks) For each of the following reactions, predict the MAJOR product with correct stereochemistry. NaSCH3 CH3SH (b) - Se(CH3)2 DMF SelfH3)2, con "ayam HD M NaOH sH - hint: product has a S atom in a ring (d) ethanol fone come NaCN acetone CH3 ci+H 1 eq. NaN3 DMSO HOH CH3
(12 marks) For each of the following reactions, predict the MAJOR product with corre stereochemistry. (e) NACN acetone (f) CH3 -н 1 eq. NaNa DMSO -H OH н- CHз
Predict the major product expected with correct stereochemistry (if any) in each of the following reactions (8 points). H2N-OH heating (-20) 88 Ph PhyP-CHP THF Ph3P-CHCH2CH3 THF m-CPBA CH,C12 to TSOH (cat) HO OH
4. (6 pts) Predict the major product for the following reactions. Remember to indicate stereochemistry, when appropriate. Unless otherwise noted you may assume that each reagent is available in excess. If no reaction is expected, write NR. 1 H2O OTS NaSH ü Nash DMSO Br QB CH,OH CH3OH
Predict the product(s), both major and minor, of the following reactions. Indicate stereochemistry where appropriate. КОНЕТОН OTs Ph н н а. Ph b. THF OMs NaOCH(CH3)2 с. Н НОСHCH)2
4. (15) Predict the major organic product, including any appropriate stereochemistry, for each of these reactions: NaSH H 2 Pi > 1) BH 3 2) NaOH, H202 n g hanisms to explain these transformations:
3 (24 pts) Give the structure of the major organic product of each of the following reactions, including stereochemistry where appropriate. NaOH methanol-water Он CH-CECH 1. (Sia),BH 2. H,O NaOH OTs NaBr Acetone (OTs Tosylate) NaCN ethanol-water OH Na,Cr,O, H,SO, H,O I н.о H,SO Bra он FeBr NaBH Ethanol
For each of the following reactions, draw the structure of the major organic product in the box provided. Each numbered set of reagents above or below the arrow represents a complete separate reaction. For multi-step reactions, give only the structure of the final product. КОН (alc) Br b) KOtBu HOtBu Br THE H2SO4 OTS КОН (ale) CH,CH Show Specific Stereochemistry CH(CH3)2 HCI H- CH CH_CH KOH (ale) Show Specific Stereochemistry NaOCH HOCH KO:Bu HOBu