Question

Need help finding the structure and distinguishing peaks.

3. The IR and 'H NMR spectra of CH4O2 are shown below. Propose a structure for this compound that is consistent with the spectral data. Draw your final structure in the box provided. 2H Final Structure

Answer 1

Degree of unsaturation Cool) Answer site of unsaturation or Given. C A H1402 Co H2n+2= (FH16 24 oxygen is negleted 24 DOU = 1 IR - The sharp IR graph show peak. 2950 cm following major & 1740 cm, 1200, 1220 1. 2950 ar - The IR 2950 an - cah shows presence ac 2g5ocm saturated alkane) 2. 1740 am. The IR 1740 cm shows presence ested at 1740 cm c-OR -

3 1220, 1200 cm - The TR 1220cm, 1200 am indicate the presence of in a compound R-OR 1220, 1200cm. Theis This indicate presence of ester Analysis of H NMR - The ti graph shows og 34 triplet 2. 5 1.4 61 doublet 3. 1.9 281 multiplate 4. 2.4 2h triplet. S. 48 In mutiplate following deta. og 34 triplet си, — си, o.9 (34) (triplet) .4 64 doublet CH₂ 64 doublet

3 lg 24 multiplate. H₂C- CH₂ - CH₂ 24 multiplate. 4. 2.4 24 triplet the-CH-X 2.4 triplet x = Electron withdrawing - Group S. 49 th multiplate. Hz -och ł cz 4g in mutiplate. fragment the By possible combining structure all is Ell3 70 H₂ - CH₂ - CH₂-c-o-CH-CH2

СИ, Т. 010 - 4 - H- Co-ch - CH doublet. O. 4.9 multiplete Ctriplet) 1.9 multiplete) 2:4 (triplet)