3. Label the following pairs as A) distereoisomers, B) enantiomers, C) conformers, or D) the same. CH3 CH3 c1 H- OH d1 H e1 CH3 a1 H, CH3 b1 H -OH OH Br CH2OH Br H H -OH CI F CI CH3 O a2 b2 c2 CH3 d2 e2 Br CH CH3 H- -OH Н CH3 HO- CH2OH F HO -H H3C. H3C H H -OH H CI CH3

Would someone be able to explain conformationally locked enantiomers? What types of structures go under this category and are they still optically active?

3. Draw all possible stereoisomers for the following molecule. Once drawn, assign the configuration at each chiral center as R or S. Give the relationship between each stereoisomer that was drawn as enantiomers, diastereomers, or meso compound. You build a table to give the relationship between each stereoisomer. may SH

Several compounds are shown below. For each, make two models: one model of the compound as shown, and the other where each tetrahedral stereocenter is inverted. Compare the two models side-by-side to see if the model with the inverted stereocenter(s) is the enantiomer, or if it is identical to the original. Remember, you can rotate around o-bonds to place the molecule in the conformation with the highest symmetry. Is each compound meso or not? OH OH OH OH DOKOOK OH OH Compound 1 Compound 2 Compound 1's mirror image is identical to Compound 1 Compound 1's mirror image is the enantiomer of Compound 1 Compound 1 is meso Compound 2's mirror image is identical to Compound 2 Compound 2's mirror image is the enantiomer of Compound 2 Compound 2 is meso Compound 3's mirror image is identical to Compound 3 Compound 3's mirror image is the enantiomer of Compound 3 Compound 3 is meso Compound 4's mirror image is identical to Compound 4 Compound 4's mirror image is the enantiomer of Compound 4…