Exercise C. Look for "chiral" carbons in the following. Label each chiral atom with the symbol *. These are the constitutional isomeric "pentanols", each is C5H12O. он ОН ОН Мон How many kinds of"pentanols" are there, including enantiomers? ОН ОН н он Хон
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- Practice n s Identify the relationship between the following pairs of molecules (constitutional isomers, enantiomers, diastereomers, conformers, same molecule, meso compound) CH3 C2H5 H F H F CI- H. CI a) b) H Br H3C° Br Br Br H Č2H5 H H Me c) Br d) Ph Н. Et Ph CI Br Ме EtExercise 4 Verify that 1,2-dichloroethene can exist in two diastereomeric forms and assign to each of the stereoisomers its configuration. Discuss the existence of polar bonds in each stereoisomer and the existence of a permanent dipole moment of each molecule. Then assign to each its boiling temperature (under 1 atm): 40 ° C and 60 ° C.Locate the chiral centers of the molecule below, entering a list of alphabetized labels, for example: adgh. H3C H CH3 H. H3CD H. CH3 Pyrethrin II How many stereoisomers are possible for this molecule, when also considering double bond geometry ? Try Another Version 7 item attempts remaining Submit Answer
- Practice Exercise: Given the following organic compounds, identify and explain the types of isomers in those samples. 6. НС—О НС—О H OH НО H ĊH,OH ĊH,OH 1Practice Draw the structure of the following compounds. 1. bicyclo [4.2.1]nona-4,7-dien-2-ol 2. 5-bromo-7,7-dimethylbicyclo [2.2.1]heptan-2-one 3. 3-chloro-2,5-dimethylbicyclo[4.3.0]nonan-8-one 4. 6-ethoxy-1,2-dimethylspiro [2.4]heptane-5-carbaldehydePractice Exercise: Given the following organic compounds, identify and explain the types of isomers in those samples. 1. 6. . CH3 CH3 CH3 !! CHS НС—О HC=O 2. OH HỌ H н он н нн он ĊH,OH ĊH,OH 1 H-C-C -c-H H-C- C-C-H i ii CH3 H H CH3 H H 7. 3. CI CI CI H CHSCH2-C CH3-C 0-H 0-CHx C = C C = C 4. H H H CI H H H H H CH3 H H-C-C-c-C-c-H H-C-C- C-H 8. H H H H CHz H 5. H H %23 HO Ć `NH2 H;C HO C. `NH2 H;C CH3 H-C- C-H H-C-C-H H H
- Check Write the systematic name of each organic molecule: structure o CH3-CH2-C-O-CH2-CH3 ° CH, O-C-CH2-CH2-CH3 ° CH,-0--CH, name 0 | 1 GExercise H. Draw structures (use wedge and dash correctly) to show the absolutestereochemistry for the following molecules. a) (R)-2-hydroxypropanoic acid b) (1R,2S)-2-bromo-1-methylcyclohexaneName these organic compounds: structure name CH,==CH – CH,– CH, CHE CH CH,– C= CH Explanation Check
- Practice Exercise: Given the following organic compounds, identify and explain the types of isomers in those samples. 1. CH3 CH3 CH3 C=C H. C=C CHs 2. HH OH || | н он н H-C-C-C-H | | | H CHz H H CHz H 3. CH3CH2-C CHs-C 0-H 0-CH3 4. H. HHHH H CHs H H-C-C-C-C-C-H H-C-C-C-H |||| HH H H H H ČHz H 5. HH CHs H-C-C. H-C-C-HEXERCISE 1. Name the following structures (a) CH3CH2CH2CH2I (b) CH3 (c) CH3 CH3CHCH2CH2CI BRCH2CH2CH,CCH2B CH3 (d) CH3 CH3CCH2CH,CI CIO NAMING AND DRAWING ORGANIC MOLECULES Recognizing different skeletal structures How many different molecules are drawn below? 0 Explanation Check X