Portmess Homework Q&S 71

Portmess Homework Q&S 71 - ( a ) An axial group...

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B-6. What is the relationship between the two structures shown? ( a ) Constitutional isomers ( b ) Stereoisomers ( c ) Different drawings of the same conformation of the same compound ( d ) Different conformations of the same compound B-7. The two structures shown here are each other. ( a ) identical with ( c ) constitutional isomers of ( b ) conformations of ( d ) stereoisomers of B-8. The most stable conformation of the following compound has ( a ) An axial methyl group and an axial ethyl group ( b ) An axial methyl group and an equatorial ethyl group ( c ) An axial tert -buytl group ( d ) An equatorial methyl group and an equatorial ethyl group ( e ) An equatorial methyl group and an axial ethyl group B-9. Which of the following statements is not true concerning the chair chair interconversion of trans -1,2-diethylcyclohexane?
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Unformatted text preview: ( a ) An axial group will be changed into the equatorial position. ( b ) The energy of repulsions present in the molecule will be changed. ( c ) Formation of the cis substance will result. ( d ) One chair conformation is more stable than the other. B-10. The most stable conformation of the compound (in which all methyl groups are cis to one another) has: ( a ) All methyl groups axial ( b ) All methyl groups equatorial ( c ) Equatorial methyl groups at C-1 and C-2 ( d ) Equatorial methyl groups at C-1 and C-4 ( e ) Equatorial methyl groups at C-2 and C-4 CH 3 CH 3 H 3 C 1 2 4 C(CH 3 ) 3 CH 3 CH 2 CH 3 CH 3 H 3 C H H H CH 3 CH 3 CH 3 CH 3 H H H Cl CH 3 Cl CH 3 CONFORMATIONS OF ALKANES AND CYCLOALKANES 65...
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This note was uploaded on 09/20/2011 for the course CHM 2210 taught by Professor Reynolds during the Spring '01 term at University of Florida.

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