Please design a synthesis of Compound C, the IR is given below. LOD TRANSMITTANCE1% D 4000 3000 2000 HAVENUMBERI - framan 1500 1000 Compound C has 6 Carbons, no stereo centers, one tertiary carbon, and no rings. 500

what is degree unstaturation of the following ? and draw 2 structures per each number

Shown is an IR spectrum of Xylene, determine what couild be wrong with the spectra?

13) What IR absorption is characteristic of the C-H stretch in alkanes? A) 3500 cm-1 B) 3300 cm-1 C) 2950 cm-1 D) 2250 cm-1 E) 1710 cm-1

Please correct answer and don't use hend raiting

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3. Identify compounds A-I in the following synthesis scheme.

Draw the structures of Compound 13 a and 13b, clearly indicate your assignments of all proton resonances. Calculate the unsaturation index of each compound Compound 13a: C8H1002 A=7.17 ppm singlet 4h B=4.70 ppm singlet 4h C= 2.99 ppm singlet 2H 1)Excess CrO3, H2SO4 2) CH3OH (excess) , H+ heat Compound: C10H1004 A=8.11 ppm singlet 4H B=3.96 ppm singlet 6 H

Calculate the degrees of unsaturation for a compound of molecular formula C,H,BRNO,. O 2 0 6 O 5 O 3 0 4 17 esc @ # $ & 2 3 4 8. W R T Y A D F C V M. alt 图

2. Recall that carbonyls absorb IR irradiation between 1680 - 1800 cm-¹ and that the exact position is dependent on the strength of the C=O bond. Match the following carbonyl compounds with their predicted IR absorption frequency and provide an explanation for your decision. You must use pictures and words for full credit. R A NH₂ R CI B R OR C 1800 cm-¹ 1750 cm-¹ 1695 cm-¹