Choose the thermodynamically least stable isomer.
has how many stereo centers? 0, 1, 2
, can be made this way.
How many stereoisomers of phenylpropylene oxide are there? 1, 2, 4
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1049. Choose the correct products for these reactions:
a.
A. 
B. 
C. 
D. 
b.
A. B. C. D.
a.
A. 
B. 
C. 
D. 
b.
A. B. C. D.
A. 
B. 
C. 
D. 
| R, R, S | R, S, S | R, S, R |
b. Is this a D or L sugar?
c. What is the R and S configuration for each stereogenic center in this sugar, from top to bottom?
| R, R, S | R, S, S | R, S, R |
b. Is this a D or L sugar?
1095. How many isomers have the name bromomethylcyclopentane? (ignoring chirality)
A. 4
B. 5
C. 6
D. 7
1097. How many stereocenters (not including any N centers) are there in morphine, whose structure is shown below?
A. 4
B. 5
C. 6
D. More than 6
1098. Is the structure shown below R or S?
A. R
B. S
1099. Is the structure shown below R or S?
A. R
B. S
1100. The stereochemistry of this molecule is:
A. 1R, 3R
B. 1R, 3S
C. 1S, 3S
D. 1S, 3R
1101. Pure (S)-2-butanol has a specific rotation of +13.52 degrees. A sample of 2-butanol prepared in the lab and purified by distillation has a calculated specific rotation of +6.76 degrees. What can you conclude about the composition?
A. 50% (S), 50% impurity
B. 50% (S), 50% (R)
C. 50% (S), 50% racemic
D. some other mixture
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