1. E/Z and Chirality..(a)) Assign the priorities (as either high and low, or 1 and 2) for the four groups of thealkene. Based on those assigned priorities, predict the configuration (E or Z). Includethe corresponding priority directly adjacent to each of the four groups.H3CH3C-CH3HO(b) .✓) Assign each of the following molecules as chiral or achiral.(i)HOHOH(ii)H₂C"CH3H3CHBHHBrCH32. E2 Mechanism and ProductsDraw an arrow pushing mechanism for the elimination reaction below and draw allproducts formed (including all organic and inorganic products).O=S.H|CH2CH3HI,HH3C CH3H

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Answered: 1. E/Z and Chirality.. (a)) Assign the…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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1. E/Z and Chirality.. (a) ) Assign the priorities (as either high and low, or 1 and 2) for the four groups of the alkene. Based on those assigned priorities, predict the configuration (E or Z). Include the corresponding priority directly adjacent to each of the four groups. H3C H3C ॐ HO CH3 _) Assign each of the following molecules as chiral or achiral. (b). (i) HO (ii) Н E OH H₂CCH₂ Н H3C H Br Br H CH3 2. E2 Mechanism and Products Draw an arrow pushing mechanism for the elimination reaction below and draw all products formed (including all organic and inorganic products). H CH2 O=S. HII. CH3 H 'H H3C CH3
3. Give the relationship between each pair of molecules below (diastereomers, enantiomers, or identical). Answer for the whole molecule, not just the particular conformation shown, and note that molecules may not necessarily be shown using the same style of drawing. (a) (b) (c) H3C H3C Н ОН Н OH CI обо (d) OH CI ОН 4. Assign R or S to all chiral centers in the molecules in question 3. OH H3C. H3C OH ОН OH Н
4. Draw all possible stereoisomers of the following compounds. Assign the appropriate absolute (R/S) or geometric (E/Z) configuration to each of the stereoisomers (or double bonds) and label pairs enantiomers, diastereomers and meso compounds. (a) CH3CHBRCHOHCH3 (c) CH3CH=C(Br)CH=CHCI (e) CH3CH₂CHOHCHOHCH2CH3 (g) OH НО... CI (h) H3C Br (b) CH3CHBRCHBRCH ₂Br (d) CH3CH(C6H5)CHOHCH3 (f) CH₂(OH)CH2-CH(OH)CH=CHOH CH3 (1) Br HS Br
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3. For ONE of the following molecules, redraw the molecule and indicate on your drawing: CI NH (1) all the n-bonds (circle these). (ii) any atoms that are chiral (stereogenic) (mark with an asterisk * AND a number 1, 2, 3, etc.) (iii) the absolute configuration of any chiral (stereogenic) centres marked in (ii) above.
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Organic Chemistry, Ch.4, WS #2, Stereochemistry - Review of R&S configuration, Fischer Projections, Enantiomers, Diastereomers, Meso Compounds. 1. Assign R or S configuration to each stereocenter. (a) H₂C H₂C a H- H OH CH₂CH₂ - Br CH, (b) 2. For each Fischer Projection, assign R or S configuration. CH₂ CH₂CH₂ b. H₂N- H COOH + -H CH₂ C-OH (c) HTC OH CH₂OH C. Br- CH₂OH CI CHO CH
None
1.) Name this molecule and identify and assign a configuration if there are chiral centers. a) (25, TR)-9-chloro-2,7-diethyl nonane b.) (25, 6R,7R) - 2-chloro-6,7-diethyl-8-methylnonane c.) (2R, 65, 75)-2-chloro- 6,7-diethyl - 8-methyl nonane d.) (25, 65, 75)-9-chloro-3,4-diethyl octane
Draw a tetrahedral representation of (S)-4,5-dimethyl-2-hexyne. O • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • Include H atoms at chiral centers only. • If a group is achiral, do not use wedged or hashed bonds on it. +▾ II... H₂C= CH3 CH₂ CH3 ? ChemDoodle
5. Given the following structure: (a) Draw all the stereoisomers; CH2 OH (b) Identify all of the enantiomeric and diastereomeric pairs; (c) Assign R or S configuration at each asymmetric carbon for each structure. Justify your assignments for the original structure (above).

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