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7) a) Draw the products of each step in the following two step reactions. Show all...
Problem 10. Draw the structure of the major product formed in each of the following reactions....
Problem 10. Draw the structure of the major product formed in each of the following reactions. Consider the resulting stereochemistry of the products formed (6p) KBr ng MeOH NaF DMSO H2(g), Pd (cat.) c) Solvent OH 1) NaH (strong base) THF (solvent) d) 2) CI Nal e) CI Acetone
Draw the two major allylic alcohol intermediates and the two final products in the following two-step...
Draw the two major allylic alcohol intermediates and the two
final products in the following two-step synthesis. Show the
correct stereochemistry of each compound; if applicable, use
wedge/dash bonds to indicate chirality centers, and you must show
hydrogens on these centers.
Map Draw the two major allylic alcohol intermediates and the two final products in the following two-step synth Show the correct stereochemistry of each compound; if applicable, use wedge/dash bonds to indicate chirality centers, and you must show hydrogens...
2. (16 pts) Reactions Provide reagents, products or starting materials for the following reactions. Show stereochemistry...
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
What are the products formed in this two-step reaction? What is the stereochemistry of the final...
What are the products formed in this two-step reaction? What is
the stereochemistry of the final product?
Draw your answers as line structures and show
stereochemistry of asymmetric centers with wedges and
dashes.
NaH(1eq) (reacts once) Bry OH Hexane Et20
Draw the correct structure for cis-1,3-dichlorocyclopentane. Show stereochemistry clearly. To ensure proper grading, explicitly draw all...
Draw the correct structure for cis-1,3-dichlorocyclopentane. Show stereochemistry clearly. To ensure proper grading, explicitly draw all four groups, including wedge/dash bonds, around a chirality center. Indicate whether the compound could exist in an optically active form Cl Cl CI could exist in optically active form cannot exist in optically active form O cannot be determined
Draw the correct structure(s) for cis-1-bromo-3-methylcyclohexane. Show stereochemistry clearly. To ensureproper grading, explicitly draw all four...
Draw the correct structure(s) for cis-1-bromo-3-methylcyclohexane. Show stereochemistry clearly. To ensureproper grading, explicitly draw all four groups, including wedge/dash bonds, around a chirality center. Indicate whether the compound(s) could exist in an optically active form.
could exist in optically active form
cannot exist in optically active form
cannot be determined
(5) [44 points] Draw the structure of the major organic product of these reactions. Do not...
(5) [44 points] Draw the structure of the major organic product of these reactions. Do not write mechanisms. ,,HOH PPh3 (a) + C,H1602 show dash-wedge H2C1 OH DEAD HC (1) C12 H20 (2) NaH H2C dash-wedge all chirality centers (b) нас (3) LiAlH4 (4) H20+ CH3 OH NAD+ (c) two products: show both он HC CH3 (1) PhCOH (d) C11H2002 show a chair conformation (2) CH2OH HT
Draw the unique stereoisomers for 1,2-difluorocyclohexane. Show stereochemistry clearly. To ensure proper grading, explicitly draw all...
Draw the unique stereoisomers for 1,2-difluorocyclohexane. Show stereochemistry clearly. To ensure proper grading, explicitly draw all four groups, including wedge/dash bonds, around a chirality center. Indicate whether the compound(s) could exist in an optically active form.
Part II - Reactions (16 marks] Draw the expected major product(s) for each of the following...
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
draw the structures of the major organic products if each of the following reactions. Be sure...
draw the structures of the major organic products if each of
the following reactions. Be sure to indicate stereochemistry when
it is relevant.
(1) xcs CH31 (2) AGOH, 80 °C -NH₂ h. : OH xcs Na2Cr2O7 H2SO4, H2O
Problem 10. Draw the structure of the major product formed in each of the following reactions. Consider the resulting stereochemistry of the products formed (6p) KBr ng MeOH NaF DMSO H2(g), Pd (cat.) c) Solvent OH 1) NaH (strong base) THF (solvent) d) 2) CI Nal e) CI Acetone
Draw the two major allylic alcohol intermediates and the two
final products in the following two-step synthesis. Show the
correct stereochemistry of each compound; if applicable, use
wedge/dash bonds to indicate chirality centers, and you must show
hydrogens on these centers.
Map Draw the two major allylic alcohol intermediates and the two final products in the following two-step synth Show the correct stereochemistry of each compound; if applicable, use wedge/dash bonds to indicate chirality centers, and you must show hydrogens...
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
What are the products formed in this two-step reaction? What is
the stereochemistry of the final product?
Draw your answers as line structures and show
stereochemistry of asymmetric centers with wedges and
dashes.
NaH(1eq) (reacts once) Bry OH Hexane Et20
Draw the correct structure for cis-1,3-dichlorocyclopentane. Show stereochemistry clearly. To ensure proper grading, explicitly draw all four groups, including wedge/dash bonds, around a chirality center. Indicate whether the compound could exist in an optically active form Cl Cl CI could exist in optically active form cannot exist in optically active form O cannot be determined
Draw the correct structure(s) for cis-1-bromo-3-methylcyclohexane. Show stereochemistry clearly. To ensureproper grading, explicitly draw all four groups, including wedge/dash bonds, around a chirality center. Indicate whether the compound(s) could exist in an optically active form.
could exist in optically active form
cannot exist in optically active form
cannot be determined
(5) [44 points] Draw the structure of the major organic product of these reactions. Do not write mechanisms. ,,HOH PPh3 (a) + C,H1602 show dash-wedge H2C1 OH DEAD HC (1) C12 H20 (2) NaH H2C dash-wedge all chirality centers (b) нас (3) LiAlH4 (4) H20+ CH3 OH NAD+ (c) two products: show both он HC CH3 (1) PhCOH (d) C11H2002 show a chair conformation (2) CH2OH HT
Draw the unique stereoisomers for 1,2-difluorocyclohexane. Show stereochemistry clearly. To ensure proper grading, explicitly draw all four groups, including wedge/dash bonds, around a chirality center. Indicate whether the compound(s) could exist in an optically active form.
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
draw the structures of the major organic products if each of
the following reactions. Be sure to indicate stereochemistry when
it is relevant.
(1) xcs CH31 (2) AGOH, 80 °C -NH₂ h. : OH xcs Na2Cr2O7 H2SO4, H2O
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