When comparing the spectra for the starting material and the product - where do you observe...

Question

Question

When comparing the spectra for the starting material and the product - where do you observe the biggest change(s)? 2-hydroxy- -o zoo OH O 172.8 13C NMR (400 MHz, DMSO-06) 2-hydroxy-3-methoxybenzoic acid 160 - 152.2 140 9TZT 120 118.9 117.7 100 56.3 80

science chemistry

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

The biggest change is observed at carbonyl carbon. in starting material the carbonyl carbon is observed at 196 ppm, in the product it observed at 172 ppm. the upfield shift between starting material and product is due to the resonance of the carboxylic acid group.

Add a comment

Answer 2

Similar Homework Help Questions

When comparing the spectra for the starting material and the product – where do you observe...

When comparing the spectra for the starting material and the product – where do you observe the biggest change(s)? 2-hydroxy-3-methoxybenzoic acid HN MR (600 MHz, DMSO-do) -251DMS0-d6 -13.96 1139 ;2.38 7:21 7.20 L89- 6.85 17.36 .6.84 380 он он ܢ0-Hac 0.98- ܓ104 107z 3.00- 14.5 14.0 13.5 13.0_12.5 12.0 115 11. 010.5_10.0 9. 5 _8.0 7. 5 7 . 0 6.5 _6. 0 5 . 5 5 .0 4. 5 4 .0 _3.5 _3.0 _2.5 9.0 _8.5 f1 (ppm) 2-hydroxy-3-methoxybenzaldehyde...
When comparing the spectra for the starting material and the product – where do you observe...

When comparing the spectra for the starting material and the product – where do you observe the biggest change(s)? 2-hydroxy-3-methoxybenzoic acid HN MR (600 MHz, DMSO-do) -251DMS0-d6 -13.96 1139 ;2.38 7:21 7.20 L89- 6.85 17.36 .6.84 380 он он ܢ0-Hac 0.98- ܓ104 107z 3.00- 14.5 14.0 13.5 13.0_12.5 12.0 115 11. 010.5_10.0 9. 5 _8.0 7. 5 7 . 0 6.5 _6. 0 5 . 5 5 .0 4. 5 4 .0 _3.5 _3.0 _2.5 9.0 _8.5 f1 (ppm) 2-hydroxy-3-methoxybenzaldehyde...
Spectroscopy Unknown. The spectra and data provided were obtained from a pure organic molecule. For 1...

Spectroscopy Unknown. The spectra and data provided were obtained from a pure organic molecule. For 1 H NMR Spectra, the integral is given in number of hydrogens (#H) or as a relative ratio. Important coupling constants (J-values) are listed next to the peaks for some examples. For some spectra, an inset (grey box) is also given showing a “zoom-in” on an important part of the spectrum. Mass Spectrum (not shown): [M] = 169 (100%) m/z IR Spectrum (not shown): 2985,...

In this problem you have to elucidate the structure of product B. A substrate A (structure...

In this problem you have to elucidate the structure of product B. A substrate A (structure shown in scheme 1) which was subjected to two consecutive reactions as shown in scheme 1 below to give the product B of molecular formula CsH14Br2. Provide the structure for Product B based on the NMR data provided (attachment 2: Problem set 2). (The 1H NMR and 13C NMR of starting substrate A has been provided for reference purpose only) 1. MnO2, CHCI3, rt,...
CASE 1-5 Financial Statement Ratio Computation Refer to Campbell Soup Company's financial Campbell Soup statements in...

CASE 1-5 Financial Statement Ratio Computation Refer to Campbell Soup Company's financial Campbell Soup statements in Appendix A. Required: Compute the following ratios for Year 11. Liquidity ratios: Asset utilization ratios:* a. Current ratio n. Cash turnover b. Acid-test ratio 0. Accounts receivable turnover c. Days to sell inventory p. Inventory turnover d. Collection period 4. Working capital turnover Capital structure and solvency ratios: 1. Fixed assets turnover e. Total debt to total equity s. Total assets turnover f. Long-term...

When comparing the spectra for the starting material and the product - where do you observe...

Homework Answers

Add Answer to:
When comparing the spectra for the starting material and the product - where do you observe...

Post as a guest

Earn Coins