Solutions_Manual_for_Organic_Chemistry_6th_Ed 267

Solutions_Manual_for_Organic_Chemistry_6th_Ed 267 - 1 2 6...

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Unformatted text preview: 1 2- 6 cont i nued (c) The str ong peak at ¡650 cm ¢' Is C=C, pRobAbly conjugated as It £s UnUsUaLly str ong. The ¡ 703 em ' peak appea r s to be A conjugAted C=O¡ undeni abLy a car boxy L£c AcId becaUse of the s¤r onG , br oad OH absor pt ¥ oN FRoM ¦ 400-3 400 cm ¢' § (d) The C¢o Absor ptIon at ¡ 74¨ cm ¢' coupled wItH C-O at ¡¨¨ 0 cM ¢' suggest an ester© The sªall P eAK At ¡ 604 cM «' ¬ ­ eAks Above 3 000 cm ®'¬ And peAks In t¯e 600° 800 cM ±² RegIon i ndIcAte A benz ene r Ing© ³¨ ´7 (A) The µ AN d µ +¨ P eAks of equaL InteN sIty i dentIfy t¯e pReseN ce of bRom ¶ ne· The mass oF µ ¸ ¡ 5¹ º m ¶ nus tHe weIgHt oF the lIgHteR Isotope of br oª » ne ¸79º g i ves the Mass oF tHe Rest of the moLecuLe: ¡ 56 - 79 = 77¼ T¯e C6HS (P heN YL) gRoup weIghs 77; thIs coMpound Is B RoMoB eNz ene¬ C£HSBr . (b) The ½z ¡¨ 7 peAk shows that IodIne Is pReseN t¾ The Mo ¿ eculAr Ion m ¶ nus IodIne gIves the r emAIndE R oÀ tÁ e MoleC u¿ e ¡Ã 6 ÄŨ 7...
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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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