3. Draw all possible stereoisomers of 2-bromo-3-methoxypentane. Use solid and dashed wedges, where appropriate. (2 pts)...
please answer all questions. 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
consider the molecule with two chiral centers. draw all remaining possible stereoisomers using solid and dashed wedges label each chiral center as R or S 5. Consider the molecule 1-chloro-3-tertbutylcyclohexane with two chiral centers: a. Using COMPOUND A (below) as a starting molecule, draw all remaining possible stereoisomers using solid and dashed wedges (no chairs). Compound B Compound A Compound C Compound D 6. On BOTH COMPOUND A and COMPOUND D (above), clearly label each chiral center as either R...
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)
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)
please draw with solid and dashed bonds (a) Draw All the Stereoisomers of the following molecule. Identify each stereogenic carbon in the compound as either (R) or (S). HaC OH H-C-C-H H3CO CH3 3
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)
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...
1. (a) Draw the two chair conformations for this molecule. (3 pts) (b) Label the more stable conformation (1 pt) 2. Provide (RS)-designations for the two starred (1) stereogenic centers (3 pts) 3. Use a Newman projection to draw the most stable conformation for the C(3)-C(4) bond in this molecule. (3 pts) OH 3-fluoro-3-methylpentan-1-ol
(a) Draw the structure of (4R,5R)-4-ethyl-5-luoro-2-methytheptane. 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) (c) Draw a diastereomer of (4R,5R)-4-ethyl-5-fluoro-2-methylheptane (0.2 pts) The specific rotation [a] of pure quinine is-165. A solution containing 9. both quinine and its enantiomer has a specific rotation of -63 Calculate the percentage of quinine present in the mixture?...
please help for part A, B, and C (a) Make models of the four 2-bromo-3-hydroxybutanal isomers. Accurately sketch them in the boxes. Use solid and dashed wedges where necessary. (2 pts) (b) For each isomer, draw a Newman projection for the most stable conformation of the C(2)-C(3) bond. (2 pts) (c) Use the RIS system to assign the absolute configuration of each chiral (stereogenic) center. (1 pt) Configuration? (2R, 3S) (2s, 3R (2S, 3S) (2R 3R) Configuration? (2R, 3S) (2S,...