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Problem 10. Draw the structure of the major product formed in each of the following reactions....
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
2. Draw the major organic product (bond-line structure) of the following nucleophilic substitution reactions: 1-bromoethane and KOH (in water solvent)???KBr (aq) а. 1-chlorobutane and Nal (in acetone solvent)???+NaCl (s) b.
16. Give the major product that you would expect to be formed in each of the following reactions. If you think there is no reaction write NR after the arrow. In each case give the mechanism (SN1, SN2, E1 or E2) by which the product is formed. Also indicate the correct stereochemistry when applicable. Both product and the mechanism should be correct to get credit. No partial credit. Nal -BuOK Acetone t-Buo NaSH DMF Br, H NaOMe DMSO MeOH,rt t-BuOH...
2. (16 pts) Reactions Provide reagents, products or starting materials for the following reactions. Show stereochemistry when relevant (or loss thereof). If a reaction produces no significant products, write "NR". If you have a question about an abbreviation, just ask. NaBr OH 1. TsCI 2. Nal, DMF CI DMSO OH 1. PBrg NaCN 2. KOC(CH3)3 Ether LDA НОН THE NaH NaH PO Acetone Heat, water
3. Reactions: (21 pts) Draw the structure of the expected organic product(s) formed in the following reactions including correct stereochemistry, if the product is racemic indicate this by either drawing both enantiomers or drawing one and writing racemic. Assume all reagents listed are present in excess unless otherwise noted. If no reaction occurs, state 'No Reaction'. HI H) 1) CH3Li CrO3, H2SO4 1) H 2) H30+ H20 (xs) CI mCPBA (CH3)3COK J) (CH3)3COH CHCI2 K) H2SO4, 1800C OH Nah, DMSO...
7) a) Draw the products of each step in the following two step reactions. Show all stereochemistry with dash and wedge diagrams when needed. b) is the resulting solution of the product(s) optically active? (4 marks) ŞNa Nal acetone acetone OH CH31 NaH diethylether hexane
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
3. Reactions: (21 pts) Draw the structure of the expected organic product(s) formed in the following reactions including correct stereochemistry, if the product is racemic indicate this by either drawing both enantiomers or drawing one and writing racemic. Assume all reagents listed are present in excess unless otherwise noted. If no reaction occurs, state ‘No Reaction'. HI H ) 1) CH3Li CrO2, H2S04 1) H 2) H30+ H2O (xs) CI mCPBA (CH3)3COK J) (CH3)3COH CH2Cl2 K) H2SO4, 1800C OH NaH,...
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
2. Reactions: (27 pts) Draw the structure of the expected organic product(s) formed in the following reactions including correct stereochemistry, if the product is racemic indicate this by either drawing both enantiomers or drawing one and writing racemic. Assume all reagents listed are present in excess unless otherwise noted. If no reaction occurs, state 'No Reaction'. H2, Pd/C Cla, hv A) Br CH2OH B) C) CH2CH2CH2OH H2SO4 NaBH4 SOCI2 D) H CH3CH2OH TEA OTS CH3 SNa E) DMSO OH PCC...