Assign the R and S configuration at all asymmetric carbons. (The hydrogen atoms are not shown.)
Assign the R and S configuration at all asymmetric carbons. (The hydrogen atoms are not shown.)...
10) 2. Assign R or to the two asymmetric carbons shown below S) 3. Place an asterisk (*) next to each asymmetric carbon in the molecule shown below 5) 4. Calculate the specific rotation for a substance that is at a conc. of 0.02 ml, and in a 2 decimeter tube ves an observed rotation of +12°.
5. Assign R and S configuration on the following asymmetric C's oo SCNH2 Ho нон Br CH3 B OH
10) 2. Assign R or S to the two asymmetric carbons shown below. -сн CH, но "снусH, но Br 5) 3. Place an asterisk (*) next to each asymmetric carbon in the molecule shown below. OH 5) 4. Calculate the specific rotation for a substance that is at a conc. of 0.2g/ml, and in a 2 decimeter tube gives an observed rotation of +10°.
3. Assign R or S configuration to the following molecules: Br F H F . Br F Br -CH CH=CH2 H CH2CH3 CH2CH3 CH3 CH2 --CH3 OH H -CH=CH2 H3C 7 CH3 H CH(CH3)2
3. Assign R or S configuration to the following molecules: Br I F H F H F Br Br -CHE CH=CH2 CH2CH3 CH2CH3 out from H₂C... -CH3 OH CH3CH, -CH=CH2 CH3 CH(CH3)2 H
3. Assign R or S configuration to the following molecules: Br F Н. F H- Br CH, Br CHECH, H CH2CH3 CH2CH3 CH, CH, -CHE OH H CH=CH2 H3CH2 HY CH(CH3)2 CH 4. Label each pair of stereoisomers below as A,B,C,D a Enantiomers b. Diastereomers Identical d Meso Compounds
3. Assign R or S configuration on all chirial centers in each of the given Fischer projections. Then, draw the perspective drawing for each structure in the boxes below. Take particular care to indicate stereochemistry properly. 0 он HO- OCH HECH2CH2C HC Br HO H- I W OH H- a) CH₂ 6 CH₂OH OCH d) CH3 Perspective drawings:
3. Assign R or S configuration on all chirial centers in each of the given Fischer projections. Then, draw the perspective drawing for each structure in the boxes below. Take particular care to indicate stereochemistry properly. 0 он HO- OCH HECH2CH2C HC Br HO H- I W OH H- a) CH₂ 6 CH₂OH OCH d) CH3 Perspective drawings:
1. Assign R or S configuration to each indicated chirality center (carbon A and B) in the following molecule (vitamin C). Which of the following assignments is correct? но OH HO H. a. carbon A (R); carbon B (S) b. carbon A (R); carbon B (R) c. carbon A (S); carbon B (R) d. carbon A (S); carbon B (S) 2. Erythronolide B is the biological precursor of erythromycin, a broad-spectrum antibiotic. How many chirality centers does erythronolide B have?...
2. Mark all stereocenters with an asterisk (*) and assign the configuration (R or S) for each. Also write whether the molecule is chiral, achiral, or meso (3 pts each) H CH2OH b. c. tch Br Сн, 3. Name the following compounds (2 pts each) Br b.