Solutions_Manual_for_Organic_Chemistry_6th_Ed 280

Solutions_Manual_for_Organic_Chemistry_6th_Ed 280 - 1 3- 7...

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Unformatted text preview: 1 3- 7 Che ical shift values a e appr ximate and mayv a y sl ghtly fo m y u s . T he splitt ng and m r o ri r or i integ ati n values sh uldm atch exactly, h w ever. ro o o (a) H 3C , /CH3 a H C - O - CH a / , CH3 H3C b b b b 12 H Q (To show the pattern of peaks, this multiplet i s larger th an it would appear on a real spectrum . ) 2H T MS .1! 10 I 9 I 8 I 7 I 6 I (5 ( ppm) 5 I 4 " III, I T 3 T 2 1 I T o I (b) b ac0 II C lCH2CH2 - C - O CH3 .1! 3H � Q 2H 2H 10 I 9 I 8 I 7 I 6 I (5 ( ppm ) 5 I I II I 4 3 I LI TMS 2 I 1 I o I I (c ) Note : the three types of are a ccidentally aromatic protons above 5H .1! a H equivalent b ecause the isopropyl group has little effect on their chemical shifts. *� a H a H � /; - C / b c CH] Q IH 6H � H a H a C H3 c (To show the pattern o f peaks, this m ultiplet is larger than it would appear on a real spectrum . ) 10 I 9 I 8 I 7 I 6 I 5 (5 ( ppm ) I " , 4 I 1 3 2 III, I T MS I 1 I o 273 ...
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