Question

do not do the ones i crossed out, please. it is only the two tables on the second page. i rate fast. thank you in advance!!

Interpreting NMR Spectra VCL 6-2: Interpreting NMR Spectra - 1 700 'H NMR spect to Interpreting NMR spectra is a skill that often ruires some amount of practice, which, in tum necessitates access to a collection of NMR spectra Virtual Chemabbas a spectra library containing over 700 H NMR spectra. In this assignment you will take advantage of this by first predicting the NMR spectra for two closely related compounds and then checkine your predictions by looking up the actual spectra in the spectra library. After completing this assignment, you may wish to select other compounds for additional practice. 1. Write the IUPAC names for the following two structures: 3- Ethiyy -- butere 1- Ethoxyl-2-buteni 2. Predict the NMR spectra for each of these two compounds by listing in the NMR tables below, the chemical shift, the splitting, and the number of hydrogens associated with each predicted peak. Sort the peaks from largest chemical shift to lowest 'H NMR Peak Chemical Shift () Multiplicity H Peak Chemical Multiplicity Structure: au 'H NMR Peak Chemical Shift (8) Multiplicity # Peak Chemical Multiplicity Structure: 11 Specify the multiplicity as a singlet (s), doublet (d), triplet (t), quartet (a), or multiplet (m) Specify the number of hydrogens associated with each peak. 79

Answer 1

The predicted NMR peaks are as follows

0 of 4 H multiplicity H number 5.16 doublet of doublet (dd) i 5.41 doublet of doublet (dd), ® @ © © ® 5.89 3.70 1.27 3.88 1.10 multiplet quartet doublet quartet we w - - triplet

f multiplicity M number بع - © W.04 doublet I- - 5.61 triplet - awonoide 5.69 quintet © w doublet 205 3.50 3.50 quartet e © 1.10 1.10 triplet w