Klein, Organic ChemistryYe CES (e) 04 5.09 5.19 point Br 05.24 Locate each of these chirad centers: 05.26 2 kpoint 1 by Study CI Br 1 2 Identily the configuration of each chiral center (for a position that is not a chiral center, select "na"): Br OH он O2N Locate each of these chiral centers: 2 3 4 OH OH 02N Type here to search DUNAUDIO Sound py O

Klein, Organic ChemistryYe CES (e) 04 5.09 5.19 point Br 05.24 Locate each of these chirad centers: 05.26 2 kpoint 1 by Study CI Br 1 2 Identily the configuration of each chiral center (for a position that is not a chiral center, select "na"): Br OH он O2N Locate each of these chiral centers: 2 3 4 OH OH 02N Type here to search DUNAUDIO Sound py O

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter12: Chirality

Section: Chapter Questions

Problem 27CTQ

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Specify the configurations (R or S) at ALL chiral centers in the molecules below. Please note that some molecules below may have more than 1 chiral centers, and you are responsible to find all the chiral centers.
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Most naturally occurring amino acids have chiral centers (the asymmetric a carbon atoms)that are named (S) by the Cahn–Ingold–Prelog convention (Section 5-3). The commonnaturally occurring form of cysteine has a chiral center that is named (R), however.(a) What is the relationship between (R)-cysteine and (S)-alanine? Do they have the oppositethree-dimensional configuration (as the names might suggest) or the same configuration?(b) (S)-Alanine is an l-amino acid (Figure 24-2). Is (R)-cysteine a d-amino acid or anl-amino acid?
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