4. Look at the structure of the product (provided), 3 hydrogens are labelled (H₁, H₂ and H.). While H₂ may look simple on the ¹H NMR spectrum that you obtained (due to low resolution), it actually has a more complex splitting pattern. Create a tree diagram showing the splitting of H₁. Hint: H₁ is diastereotopic proton, assume JAB > Jac and assume no long range (>3 bond) coupling. AC Hb Ha I Hc

What IR and H-NMR peaks would you expect to see in methyl 3-oxohexanoate (see p559, attached image)? Include band position, chemical shift, splitting in your response.

I need help with the problem below!

help me with this please

please answer with structure and name of chemical compound!

HINT: Integration is just a ratio not the actual number of hydrogens. Q1: The following alcohol undergoes elimination in the presence of concentrated sulfuric acid, but the product shown is not its chief product. Instead, another isomeric six-carbon alkene forms. This product shows a large peak at 20.4 ppm and a smaller one at 123.4 ppm in its proton-decoupled 13C NMR spectrum. Draw the structure of the product and interpret the spectrum. Outline a mechanism for the formation of the product that possesses this spectrum. CH3 CH;-CH-CH-CH2-OH CH3 H,SO, CH;-CH-C=CH2 + H,0

1. Report your 1H NMR analyses here. Fill in the table. ( inserted below)  2. Draw structure and math the peaks with the protons.  3. Explain any special features:                IR: conjugation, resonance, H-bonding, etc.                 1HNMR: enantiotopic, diastereotopic, H-bonding, cis-                trans, coupling constants, etc.

2. Spectra warm-up. For each of the following four compounds, please pair them with the appropriate IR and 13C NMR spectrum shown on the following pages. Then please draw what you might expect their 'H spectra to look like. Most spectra in this problem set were obtained from the Spectral Database for Organic Compounds. HO IR match: NMR match: A = 100 L00 B = 4000 00 C = J000 sio 100 80 60 %T D = 40 20 4000 3000 2000 1500 1000 400 R2020 93124TM Wavenumber (cm-']

Label each set of chemically equivalent protons, using a for the set that will be at the lowest frequency in the 1H NMR spectrum, A. for the next lowest, and so on. Indicate the multiplicity of each signal.

Using only the information in the pK, table below, write an estimated pK, value for each labeled H in the two structures below. For example, if the pK, value of the H labeled a has an estimated value of 50, write 50 in the first box of the answer table and so on. acid pK, H pKa a CH4 50 H a : NH3 35 d HC=CH 25 19 CH,CH3 H H,0 16 15 CH,CNH, + NH. 9. 5 CH,COH H,0* - 2