
(a) Draw the structure of (4R,5R)-4-ethyl-5-luoro-2-methytheptane. Use solid and dashed wedges to show the proper configurations...
8. (a) Draw the structure of (4R,5R)-4-ethyl-5-fluoro-2-methyl heptane. Use solid and dashed wedges to show the proper configurations of the chiral centers. (0.4 pts) (b) Now draw a Newman projection for the most stable conformation of the C(4)-C(5) bond. (0.4 pts) H (c) Draw a diastereomer of (4R,5R)-4-ethyl-5-fluoro-2-methyl heptane (0.2 pts)
5. (a) Draw the structure of (1 S,2S,5R)-5-ethyl-2-isobutylcyclohexanol. Use solid and dashed wedges to show the proper configurations of the chiral centers. (0.4 pts) io noto gos owenA.msxo bnoooe orlt lo veb odt no oub al toomngla batgoo ( 0)emmyalo onelo a of bup (b) Draw both chair conformations for this structure. (0.4 pts) (c) Draw a box around the most stable chair conformation. (0.2 pts)
6. (a) Draw the structure of (18,25,5R)-5-ethyl-2-isobutylcyclohexanol. Use solid and dashed wedges to show the proper configurations of the chiral centers. (0.4 pts) (b) Draw both chair conformations for this structure. (0.4 pts) OG (c) Draw a box around the most stable chair conformation. (0.2 pts)
5. (a) Draw the structure of (15.25,5R)-5-ethyl-2-isobutylcyclohexanol. Use solid and dashed wedges to show the proper configurations of the chiral centers. (0.4 pts) (b) Draw both chair conformations for this structure (0.4 pts) (c) Draw a box around the most stable chair conformation (0.2 pts) 6. Compounds A, B, and C are stereoisomers of 1,3-dimethylcyclopentane. Characterize the following solutions as optically active or optically inactive: (1) an equal mixture of B and C and (2) an equal mixture of A...
Redraw (4S, 5R)-4-ethyl-5-propylnonane using wedges and dashes to show the correct stereochemistry
3. Draw all possible stereoisomers of 2-bromo-3-methoxypentane. Use solid and dashed wedges, where appropriate. (2 pts) осна 2-bromo-3-methoxypentane 4. Provide (RS)-designations for the four starred (*) chiral (stereogenic) centers. (2 pts) H
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3. Draw all possible stereoisomers of 2-isopropylcyclobutanamine. Use solid and dashed wedges, where appropriate. (2 pts) NH2 2-isopropylcyclobutanamine Provide (RS)-designations for the four starred (*) chiral (stereogenic) centers. (2 pts) 4. II . I I NT CH3
4) Draw the following compounds a. (2S,5R)-5-chloro-2-ethylhexanoic acid b. (1R,2R,4R)-4-ethylcyclohexane-1,2-diol c. (2S,3R)-3-amino-2-phenylbutanal d. (1S,2S,3R)-2-fluoro-3-propylcyclobutanol e. (2E, 7Z)-5-bromo-2,7-nonadiene
4. Draw the most stable and most unstable Newman Projection for the following molecules using the rotation around the C3-C4 bond (use the IUPAC rules to number the chain) 5. Draw the two chair conformations for each of the following cyclohexane derivatives and then choose the conformation that is the most stable. Br BA 3 3 3 $ 2879 So ya 6. For the following compounds, identify the chiral carbons with an asterisk (*) and for those that are not...
6. Draw the two chair conformations for cis-1-sec-butyl-2-ethylcyclohexane. Predict the most stable conformer and draw the corresponding Newman projection (4 pts) 7. Convert the following compounds from their 3D structure to their Fisher projection and vice-versa (4 pts) НО Br HO co₂me HN CI CO2Me НО -СІ НЕОН СН2ОН 5| Page 8. The specific rotation for (R)-methyl 2-chloro-2,3-dihydroxypropanoate is -126.7. A student prepare a sample of methyl 2-chloro-2,3-dihydroxypropanoate enantiomers that shows a specific rotation of +89.6, (a) Calculate the percent...