Can you solve all, please 15. Assign R or S configuration for each chiral center in the following molecules:HHOHCI▪CH,BrHOHC-CH,HOCH,н Онb. H3C HНОСН,CH,а.с.d.CH,OHCH,BrHOCNH--BrH-BrCH,H--ClBr HBrCH,f.CH,Brh.HСНОе.g.

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Answered: 5. Assign R or S configuration for each…

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter12: Chirality

Section: Chapter Questions

Problem 19E

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A) For a molecule with three chiral carbons the possible number of stereoisomers is: 4, 8, 6 or 2 B)Which of the following has a S configuration: (Image)
4. For each of the following structures:a. Identify Chiral Centersb. Identify the chiral carbon configuration as R or Sc. Identify internal symmetry centers if they existd. Identify whether the structure is chiral or achirale. Identify mesostructures from existing
Build 2‑bromoethan‑1‑ol and its mirror image. 2‑Bromoethan‑1‑ol, which has condensed structural formula BrCH2CH2OH, is also called 2‑bromoethanol. a. Draw the structures of 2‑bromoethan‑1‑ol and its mirror image using wedges and dashed wedges. b. How many stereocentres are present in 2‑bromoethan‑1‑ol? c. Are the molecules chiral? Do they contain planes of symmetry? Briefly explain the evidence for your answer.
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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.
Compounds with several chiral centres may have configurations referred to as meso. Meso configurations arise when the molecule can adopt a configuration with an internal mirror plane. When this occurs, the mirror image of a molecule with an internal mirror plane is an identical configuration. Thus, even though the molecule may possess several chiral centres, they are reflection of each other (within the molecule) thus resulting in an achiral meso form. This occurs for example for tartaric acid (Figure 3.1). Because of this, tartaric acid only has three stereoisomers instead of four. It has the two chiral (R,R) and (S,S) enantiomers, and the meso form. Figure 3.1. Stereoisomers of tartaric acid. Given the information above on meso forms, how many different stereoisomers do compounds A to D (Figure 3.2) have? Figure 3.2. Structure of compounds A, B, C and D.
To the following statement, answer true or false and explain your answer. Q) All chiral centers are also stereocenters.

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5. Assign R or S configuration for each chiral center in the following molecules: H OH ▪CH, Br H ОН `C- CH, HOCH, H OH b. H;C H d. HOCH, CH, а. с. group CH,OH CH,Br H- Br H- Br CH, H CI Br Br H CH, f. CH,Br h. СНО е. g.