Evaluate and investigate the following IR Spectrum and 1H NMR Spectrum. Identify the most important peaks and correlate the results as much as you can from the obtained product in the multi-step synthesis of ethyl acetoacetate. This is Product C from this multi-step synthesis where Product B was identified as in the figure below and as such, identify what product can be obtained after the synthesis from the spectra provided. Use the template below in analysing the spectra.
Figure 1 (above): Product C IR Spectra
(EXAMPLE ONLY)
Frequency (cm-1) | Relative Intensity or Shape | Vibrational Assignment |
2950 | Medium | C-H Stretch |
1715 | Sharp and Strong | C double bond O Stretch |
Figure 2 (above) Product C 1H NMR (Full View and Zoomed)
(EXAMPLE ONLY)
Hydrogen Number | Integral | Signal Multiplicity | Exptl. (parts per million) | Assignment | Expected Chemical Shift, (parts per million) |
H1 | (Example: 1, 2 or 3) | Triplet | 1.32 | CH3C-O- | 1.2 |
Evaluate and investigate the following IR Spectrum and 1H NMR Spectrum. Identify the most important peaks and correlate the results as much as you can from the obtained product in the multi-step synth...
Evaluate and investigate the following IR Spectrum, 13C NMR Spectrum and 1H NMR Spectrum. Identify the most important peaks and correlate the results as much as you can from the obtained product in the multi-step synthesis of ethyl acetoacetate. This is Product E from this multi-step synthesis where Product C was identified as in the figure below and as such, identify what product can be obtained after the synthesis from the spectra provided. Use the template below in analysing the...
(a) From the spectral data ( H, C NMR, IR, MS) you were given, identify the structure of your product. Explain why you chose your particular product based on the spectroscopic data. (b) Fully assign the 1H NMR spectrum of your product (i.e. determine which peaks in the 1H NMR correspond to which hydrogens in the product). You will not receive full marks for determination of the unknown unless you assign the 1H NMR spectrum completely. (c) Now work backwards...