What is the major product in each of the S2 reactions below? For each product, label...
What is the major product in each of the S 2 reactions below? For each product, label all stereocentres as R or S as appropriate. [8 Marks] CH3CH2SNA acetone Он 1. NaH in THF 2. 1. NaH in THE HS 2. CI сH, NaCN H Br H CH3 acetone CH2CH3
What is the major product in each of the SN2
reactions below? For each product, label all
stereocentres as R or S as
CH3CH2SNa acetone 1. NaH in THF 2. 1. NaH in THF HS 2.
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
17. Draw the structure of the major organic product(s) for each of the following reactions. Indicate stereochemistry when appropriate. C(CH3)3 NASH Br (S)-2-bromononane - acetonitrile KOH CH,OH NaCN HE Br Acetonitrile C2H5 H, Br NaOH Acetone excess HBr ROOR HC1 + Br Na o DMSO
(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
What is the major Organic product of the following sequence of reactions? CH ΠΗ H H 1) CHI (excess) 2) Ag20, H2O, A H NH CH; CH CH3 ΠΗ H H H H H H ΝΗ T н "CH; (a) CH; (6) (c) CH CH CH, AH H H H i û H H (d) a. a b. b Ос. с O d.d ee f. f What is the major Organic product in the following dehydration reaction? ОН Н;PO4 ??...
For the following reactions, predict the MAJOR product(s). If a pair of enantiomers is expected, draw both enantiomers. NaSH Cis-1-bromo-3-methylcyclohexane acetone OTs 1. NaI/acetone 2. NaCN/DMF CH3 NaCN H,с. Br CH3 Бшн.
ALKENES: STRUCTURE AND REACTIVITY 7-57 Predict the major product in each of the following reactions: (a) CH3 H₂O H2SO4 ? CH2CH2CH=CCH2CH3 (Addition of H20 occurs.) (b) ~ CH2CH3 HBr ? (c) A CH3 3 HBr ? 2 HCI Ebbed H2C=CHCH2CH2CH2CH=CH2 ?tot bolagxo ad bow
Part II - Reactions (16 marks] Draw the expected major product(s) for each of the following reactions. Question Answer 8. 1. NaH OH ? 2. OTs 9. NBS ? major product 10. Nal Br ? Acetone Br 11. 1. NaNH2 H3C-CECH ? 2. OTS 12. OH Br NaOH ? cyclic compound 13. OH HBT ? 14. ? OH cat. H2SO4 H20 Room temp. 15. Br MeOH
For each of the following reactions: (1) Draw all of the organic product(s) that would be formed, and (2) label each product as formed via S1, S2. E1, or E2. For elimination products, label as major or minor. Pay close attention to regiochemistry, stereochemistry, and whether carbocation rearrangements would occur. - DBN ci Br H20 B A C CH3OH acetone NaOH D Br DMSO