Question

annotated artic 15 peso Deduce the structure that gave rise to the spectroscia F ull of you must include an ancient desching your thought process in solving this problem hande l related with FT-IR abom in degree of saturation, then IR data with MS c de calculate hest for moldar formula in conjunction with C NMR try and chemicals d e d i abetes structure. Lastly, corelate your are so NMR d. You must include a full assigment of HNVR peaks with specifications in the sucre groups with lowercase Roman letters and can with lonca Resa VR peaks with specifications in the structure (label Halo meals ma sotege 17-IR ODD celom Lopetin Ng Rule MF beste CARS Needed TCVURD DEPT OCH DEPTOCH DEPT WCH DEPT Woc Soest w Swali.com II NMR fusea,b,c,ete.) MH splitting mom assignment NMR use i. ii. Sii, etc.) DEPT atom assignment 8 (ppm)

Answer 1

IR Spectrum L stretching 4000 3000 C=0/ stretching UM 1715 2000 1500 1200 800 v lom ) Mass Spectrum of base peak Molecular weight 132 m/z 101 40 80 120 160 mle 200 240 280 Dimethyl geoup 13C NMR Spectrum -CH₂ H-CH CH2 attached CH CH lies between twq oxygen atoms Carbonyl carbon -CHE CH3 attached to carboning solvent 200 160 120 80 40 08 (ppm) 'H NMR Spectrum Dimethyl CH3 attached carbonyl CH2 - 10 9 8 7 6 5 4 3 2 1 8 (ppm) Compound has carbonyl group and molar mass of the compound is 132 m/z. It has methyl group attached to carbonyl. Then one CH and CH2 and dimethyl group. Using the information, we can deduce the structure

vo 4,4-dimethoxybutan-2-one Chemical Formula: C6H1203 Molecular Weight: 132.1590 ChemNMR 'H Estimation 2.75 5 2 .32 0. 3.40 2.10 3.40 PPM ChemNMR 13C Estimation 48.2 205.1 55.2 30.1 55.2 220 200 180 160 140 120 PPM 100 80 60 40 20 0