120and145 um.Two aema0rooTeraplsedgrsg cur at re The 'hNMr s ar 8=5 Ppm (I H): are upfield ofδ=3ppm CH CF3CH2OH heat Note:Pr=isopropyl CH Page 11 Page 11 18. Heating the 4-methylbenzenesulfonate ester of the isomer shown below in 2,2,2-trifluoroethanol (a highly ionizing solvent of low nucleophilicity) leads two products with the molecular formula C10H18. The major product displays 10 different signals in its 13C NMR spectrum. Two of them occur at relatively low field, about δ = 120 and 145 ppm, respectively. The 1 H NMR spectrum exhibits a multiplet near δ = 5 ppm (1 H); all other signals are upfield of δ = 3 ppm. Identify the compound. CH3 OSO2 iPr CH3 CF3CH2OH heat ? Note: i Pr = isopropyl A) CH3 OSO2H iPr B) CH3 OSO2H iPr C) CH3 iPr D) CH3 E) CH3 iPr Ans: C