Part A Which of the following compounds have an asymmetric center? Check all that apply. Cl | CH3CH2CCH2CH2CH3 | Br CH3CH2CHCH3 | CH3 CH3CH2CHCH2CH3 Br ✓ CH3CH₂OH CH3CH2CHCH3 | F CH2=CHCHCH3 | NH2 Submit Previous Answers Request Answer × Incorrect; Try Again; 6 attempts remaining
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- USe arrow pushing to explain the rxnPart A Previous Answers Which of the following compounds have an asymmetric center? Check all that apply. CH3 1 CH3 CH₂ CCH2 CH2 CH3 | C1 CH3 CH₂CHCH2 CH3 Br CH₂ CHCHCH3 | NH₂ = CH3 CH₂ CHCH3 1 CH3 CH3 CH₂ CHCH3 Cl CH3CH₂OHCheck the box under each compound that exists as a pair of mirror-image twins. If none of them do, check the none of the above box under the table. OH O || HỌ—CH2—CH—CH HỌ—CH2 -CH₂-OH none of the above OH H-C- CH-C-H C1O CH3 O CH3-CH-C-CH₂-OH X 5
- CHEM 431 Programmed Instruction 3 An example of a molecule with two different chiral centers is 2,3-dihydroxybutanoic acid shown below (A) COH He IOH Flying wedge is a two- wedges indicates bonds pr the dashed vertical wedges represent the OH and — H are profecting projecting into the using different colored markers esentation where the solid horizontal and out of the plane of the paper while bonds projecting into the paper. Thus rds you while COOH and-CH3 are OH COOH, and -CH3 by 20. Draw a flying wedge representation of 3 related to A as mirror image. Are A and B superimposable and chiral? What kind of stereomers do they represent? Compounds that contain two different chiral centers can exist as four optically active stereomers 21. Construct the models of the other two stereomers of 213-dihydroxybutanoic acid. The flyingCurved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic steps. Be sure to account for all bond-breaking and bond-making steps. H 0 HO HH H HH Na Ⓒ Select to Add Arrows CH3CH₂ONa, heat CH3CH₂OHCheck the box under each structure in the table that is an enantiomer of the molecule shown below. If none of them are, check the none of the above box under the table.