12. For the reaction scheme shown below, provide the structure of the starting material in Box...

Transcribed Image Text:

12. For the reaction scheme shown below, provide the structure of the starting material in Box A and the final product in Box C. In the box below the arrow, provide the reagent(s) and condition(s) required to accomplish this transformation. The 'H NMR spectrum of the final product (Compound B) is provided below. Compound A was analysed by mass spectrometry: the M+ peak of the starting material (Compound A) is at 184 m/z with an abundance of 78%. The M+2 peak has an abundance of 77%. The base peak is at 183 m/z. (a) Provide the structures of Compound A and Final Product B. (b) Assign all 'H NMR signals to specific chemical environments or specific protons on your structure for Compound B according to the labels provided on the 'H spectrum. 1H NMR of Compound B (Final Product) a. 7.58 ppm, doublet, 1H b. 7.26 ppm, triplet, 1H c. 7.17 ppm, doublet, 1H d. 7.08 ppm, triplet, 1H e. 4.16 ppm, broad singlet, 1H f. 3.76 ppm, singlet, 2H g. 2.66 ppm, quartet, 2H h. 1.11 ppm, triplet, 3H f h a b, c, d e 8 7 5 2 1 PPM 12. For the reaction scheme shown below, provide the structure of the starting material in Box A and the final product in Box C. In the box below the arrow, provide the reagent(s) and condition(s) required to accomplish this transformation. The 'H NMR spectrum of the final product (Compound B) is provided below. Compound A was analysed by mass spectrometry: the M+ peak of the starting material (Compound A) is at 184 m/z with an abundance of 78%. The M+2 peak has an abundance of 77%. The base peak is at 183 m/z. (a) Provide the structures of Compound A and Final Product B. (b) Assign all 'H NMR signals to specific chemical environments or specific protons on your structure for Compound B according to the labels provided on the 'H spectrum. 1H NMR of Compound B (Final Product) a. 7.58 ppm, doublet, 1H b. 7.26 ppm, triplet, 1H c. 7.17 ppm, doublet, 1H d. 7.08 ppm, triplet, 1H e. 4.16 ppm, broad singlet, 1H f. 3.76 ppm, singlet, 2H g. 2.66 ppm, quartet, 2H h. 1.11 ppm, triplet, 3H f h a b, c, d e 8 7 5 2 1 PPM

Answer rating: 100% (QA)

a tructures g Compound A M Peak I olauitin... View the full answer