15597ch11199-21911/02/0521:43Pag0211 EQA Solutions o Problems211 ◇OC Similar to(a CH3 CH3 Similar to(a)and (c) e△<☐< Ring strain 6.Generally the alkenes are written left-to-right in decreasing order of stability (trisubstituted)(disubstituted)(monosubstituted) ><>>< 47.CH:CH-CH-CH2 e-cC Smallest amount Major product 48.A haloalkane of general structure R-CH2-CHX-R'will have two conformations with H anri to K;one gives the cis and the other gives the trans alkene as product.For example,consider 2-bromobutane H CH H CH H Br H C=C C=C CH CH;CHs H(c) Similar to (a) (d) Similar to (a) and (c) (e) Ring strain 46. Generally the alkenes are written left-to-right in decreasing order of stability. (a) (b) (c) (d) 47. 48. A haloalkane of general structure ROCH2OCHXOR will have two conformations with H anti to X; one gives the cis and the other gives the trans alkene as product. For example, consider 2-bromobutane: C C CH3 CH3 CH3 CH3 H H H H Br H C C CH3 CH3 H H CH3 CH3 H H H Br C C CH3 CH3 CH3CH2CH CH2 H H C C CH3 CH3 H H Smallest amount Major product  ~~ (trisubstituted) (disubstituted) (only possibility)  (tetrasubstituted) (disubstituted)  (monosubstituted)  (trisubstituted) (disubstituted) CH3 CH3 CH3 CH3 CH2 CH3 Solutions to Problems • 211 1559T_ch11_199-219 11/02/05 21:43 Page 211