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III. (6 points) Each of the biologically active molecules shown below may contai

ID: 549201 • Letter: I

Question

III. (6 points) Each of the biologically active molecules shown below may contain one chiral carbon. For cach, indicate which carbon is chiral with an asterisk (), and then indicate the configuration of that carbon on the line below the structure. If the molecule is not chiral, write"achiral" on the line below the structure H3C CH3 F3c achi VL.(9 points) Complete the following Newman projection, Fischer projection, and dash- wodge form so that they all represent (2R,3R)-2-bromo-3-chlorobutane CH3

Explanation / Answer

Chirality is based on four different groups attached to a single carbon atom. Now in middle compound, two groups are different in one side (-Phenyl and -CO2CH2CH3) while on the other side it contains same compound from both directions. Hence, this is an achiral carbon.