3. Draw the arrow-pushing mechanism of the reaction, including all proton transfer steps. oi melon ping...
Help with problems #3 and #4
3 Draw the arrow-pushing mechanism of the reaction, including all proton transfer steps. eOH 4. Below is the structure of a chalcone, with protons labelled 1-8. The H NMR spectrum is provided on the next page and lettered A-H for clarity. Describe the multiplicity and integration you would expect to observe for each of the protons. Which peak would you expect to have a higher chemical shift, 4 or 5? Draw resonance structures to...
3. Draw the arrow-pushing mechanism of the reaction, including all proton transfer steps. 4. Below is the structure of your product, benzocaine, with protons labelled A-E. The 'H NMR spectrum is provided on the next page. Describe the multiplicity (with J values) and integration you would expect to observe for each of the protons. Which peak would you expect to have a higher chemical shift, C or D? Draw resonance OSO structures of benzocaine to explain your reasoning. NH2E
Identify the arrow pushing mechanism shown. o A loss of a leaving group proton transfer O C nucleophilic addition (also called nucleophilic attack) OD methyl shift O E hydride shift
Draw a detail arrow pushing mechanism for the following reaction. Also show the resonance structures of the intermediate whenever appropriate. HNO3/H2SO4 NO2 b)
Draw a detail arrow pushing mechanism for the following reaction. Also show the resonance structures of the intermediate whenever appropriate. -OH 50% H2SO4 Heat OR
please discuss the mechanism of benzodiazepine formation;
include full arrow pushing mechanism to illustrate. the percent
yield we had was 60% and melting point was 132 degrees celcius.
also please assign all peaks in the protin NMR spectrum and
tabulate the data as shown in table above. also note IR
observations.
FOR THE LAB REPORT DISCUSSION SECTION Discuss the mechanism of the benzodiazepine formation; include the full arrow-pushing mechanism to illustrate. Discuss your percent yield and, if it's low, give...
please discuss the mechanism of benzodiazepine formation;
include full arrow pushing mechanism to illustrate. the percent
yield we had was 60% and melting point was 132 degrees celcius.
also please assign all peaks in the protin NMR spectrum and
tabulate the data as shown in table above. also note IR
observations.
FOR THE LAB REPORT DISCUSSION SECTION Discuss the mechanism of the benzodiazepine formation; include the full arrow-pushing mechanism to illustrate. Discuss your percent yield and, if it's low, give...
1. Draw a complete arrow pushing mechanism for the following
reaction, including all arrows, intermediates, and formal charges
leading to the product.
НО. excess H+ catalyst
2. For the reaction below: a. Predict the most stable product(s) and draw the mechanism Br OK b. Redraw the product/s) below and label all the non-equivalent carbons. How many sonals would you expect to see in the C NMR of the product? Predict the chemical shifts of each carbon below. c. Redraw the product(s) below and label all the non-equivalent hydrogens. How many signals would you expect to see in the 'H NMR of the product? Predict the chemical...
2. (a) (i) Draw an arrow-pushing mechanism that illustrates the electron flow in the acid-base reaction below. Use the structures shown below in your arrow-pushing mechanism. (4pts for correct mechanism). (ii) Using pKa values indicated in Table 1.8 (round to nearest whole number) and estimate the equilibrium constant for this reaction (Keq). Show work which led to this value. (3pts for work, 1pt for correct Keq indicated). (iii) Draw a base (assuming the same acid provided below) that would reverse...