Give the structures using both the dash-and-wedge (3D or
perspective) formula and Fischer projections for each of the
following compounds.
a) (3S,4R)-3-bromo-4-methylhexane
b) (2R,3R,4S,5S)-2,4-dibromo-5-chloro-3-methylhexane
Give the structures using both the dash-and-wedge (3D or perspective) formula and Fischer projections for each...
2a. Draw the dash-wedge structures and Fischer projections of the following molecules. R-1-bromoethanol (2S, 3R) - 2-chloro-3-iodobutan-1-ol (HOCH-CHCICHBCH) .. Draw a diastereomer for (2S, 3R) - 2-chloro-3-iodobutan-1-ol.
11. Draw a dash-wedge structure for the following? (1 pt each) (a) (1R)-1-bromo-1,3,3trimethylcyclohexane (b) (2S, 4S)- 2-bromo-4-methylhexane 12. Draw fisher projection formula of (2S, 3R, 4S)- 2,4-dichloro-3-methylhexane? (1 pt)
2.Draw a Newman projection, a wedge-dash structure and a Fischer projection for all four stereoisomers of 2-bromo-3-chlorobutane. The wedge dash structure is given for part a – all you need to do is finish the Newman projection and the Fischer projection. a.2R, 3R. On each structure show how you determined where each group goes. (part a only) b.2S,3S c.2S, 3R d.2R, 3S CH3 Brci CH CH3
Draw the structures for the following compounds. a) (3Z,5S)-4-bromo-5-chloro-2-methylhexa-1,3-diene b) (5S,7S)-5-(bromomethyl)-7-chloro-oct-2-yne c) (1S,5S,6S)-6-bromo-5-[(1R)-1-chloroethyl]cyclohex-3-enol d) 2-bromo-4-[(1R)-1-hydroxyethyl]benzoic acid e) (3S,4S,5S)-5-amino-3-hydroxy-4-methylhexanal f) (Z,2R,4R)-6-bromo-4-chloro-N-ethyl-N-methylhept-5-en-2-amine g) [(1S)-1-chloroethyl] (Z,3R)-5-chloro-3-methoxyhex-4-enoate h) (Z,3R)-3-bromo-4-chloro-7-methyloct-4-enoic acid i) (3S)-6-bromo-N-ethyl-N,3-dimethylhex-4-ynamide j) (Z,3R,4S)-6-bromo-3-[(1S)-1-chloroethyl]-4-hydroxyhept-5-en-2-one
12.36 Draw Fischer projections for each of the following dash-wedge structures: a. CHO b. CHO C. CHO с но : Br CH OH Ho : н СН,ОН н : ОН СН,ОН
CHM 211 STEREOCHEMISTRY Chapter 5 Write the IUPAC name for the following compounds and including the Rors configuration when appropriate? (1 pr. each) он CH.CH (a) HOCHB (d) H OH OH 10. Draw a dash-wedge structure for the following? (1 pt cach) (a) (1R)-1-bromo-1,3,3 trimethylcyclohexane (b) (2S,4S)-2-bromo-4-methylhexane 11. Draw fisher projection formula of (2S, 3R 45)-2,4-dichloro-3-methylhexane? (1)
7). Consider the structure for 2,4-dichlorohexane, CH-CH(CI)CH-CH(CI)CH CH. A) (16 pts) Draw all four possible stereoisomers in BOTH the wedge/hash (sawhorse) format as well as Fischer projections. Each box is expected to contain the same stereoisomer. B) (4 pts) CIRCLE the (29,45)-2,4-dichlorohexane isomer. Put a BOX around its enantiomer. C) (5 pts) Which one(s) of the several diastereomers can be separated using Thin Layer Chromatography? 1. all four stereoisomers can be separated 2. The pair (2R,4S) and (2R,4R) can be...
Analyze each pair of compounds structures represent. Your cho cach pair of compounds below. Identify which class of isomers each pair of s represent. Your choices are: (i) constitutional, (ii) conformational, (iii) omers, (iv) diastereomer or (v) identical (non-isomers). Only one label for each pair should be used. For each case show work (drawings, (R)/(S), rotation of bonds, chair- "ps, etc) which led you to each answer for the pairs below. Any differences of answers between you and your peers...
draw fisher projections for both the D and L isomers of the following 12 Identify each of the following as a D or an L form and draw the structural formula of the enantiomer: CHO b. a. CH,OH C=O он HOH HOH но CH,OH CH,OH 3 Draw Fischer projections for both the D and L isomers of the following a. 2,3-dihydroxypropanoic acid b. 2-chloro-3-hydroxypropanoic acid Draw Fischer projections for both the D and L somers of the following amino acids:...
1 a) For each of the following compounds, give the IUPAC suffix and the chain length as demonstrated for the example. Compound IUPAC Chain Compound IUPAC Chain suffix length suffix length OH -ol 4 OH alcohol OH O w nii CHE Br i Ulo OH N(CH3)2 b) Match each of the following structures with the proper IUPAC name. Note that there are more names than structures (not all names will be used). CH3 Br CI Br Br CH, a) 2,4-dimethyl-1,3-cyclopentadiene...