Solutions_Manual_for_Organic_Chemistry_6th_Ed 49

Solutions_Manual_for_Organic_Chemistry_6th_Ed 49 - 2 -32 (...

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Unformatted text preview: 2 -32 ( a) cis (b) The cop l an ar atoms i n the structures to the left and below are marked w i th asterisks. (c) H H JC * �C - C , " ,, " T here are sti l l six copl anar atoms. 2 -33 QD M (d) ,, , eH,CH] H * trans C ollinear atoms are marked with asteri sks. 2 -34 ( a) no cis-trans i someri sm (b) (c) no c is-trans i someri sm (d) Theoretical l y , cyclopentene could show c i s-trans i somerism. In reality, the trans form is too unstable to exist because of the necessity of stretched bonds and deformed bond angles. trans-CycJopentene has n ever been detected · . c ls " trans "--not possible bec ause of ring strain /J 0 If/ V (e) t hese are c is- trans i somers , but the designation of c is a nd trans to spec i fic structures is not defined because of four different groups on the double bond 39 ...
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This note was uploaded on 02/27/2010 for the course CHEM 140 taught by Professor Wade during the Spring '10 term at Whitman.

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