1-Butyne was treated with sodium amide followed by ethyl iodide. A signal at ~3300 cm–1 was observed in the IR spectrum of the starting alkyne. In the IR spectrum of the product this signal would... be present/ or not be present
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1-Butyne was treated with sodium amide followed by ethyl iodide. A signal at ~3300 cm–1 was observed in the IR spectrum of the starting
be present/ or not be present
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- I’m assuming this is an alkene, but I’m lost on a few things. (I provided the mass spec, H and C NMR, and the IR spectra for this compound in the pictures). Looking at the C-NMR what can be interpreted from the chemical shifts? And what can be interpreted from the major peaks shown on the mass spectrum? I believe the compound is cyclohexene, but am I right? And if it is drawn out how does the figure relate to the H and C spectra?Please identify compound 1 and compound 2!!! Attached is the H-NMR and IR for both compounds (ignore the IR peaks ~2400). The experimental melting point for the aqueous layer was 260-261 celcius. The experimental melting point for the organic layer was 76.9-78.7 celcius. The following was my procedure: IntroductionThe reaction mixture in this experiment contains 4-bromobenzaldehyde, methanol, and aqueous potassium hydroxide. A reaction occurs that produces two organic compounds, compound 1 and compound 2. Both are solids at room temperature. Your task is to isolate, purify, and identify both compounds. A specific procedure is given for preparing the compounds, but you will need to work out the procedures for most other parts of this experiment.Experimental ProcedureThis procedure should produce enough of each compound to complete the experiment; however, in some cases, it may be necessary to run the reaction a second time. Although this experiment can be done individually, it works…Complete the electron-pushing mechanism for the reaction of the y-hydroxyaldehyde in hydrochloric acid by adding any missing atoms, bonds, charges, nonbonding electrons, and curved arrows. Note the use of a generic alcohol representing another alcohol molecule in solution. Step 1: draw curved arrows. Step 2: complete the structure and add curved arrows. Select Draw Rings Groups More Erase Select Draw Rings Groups More Erase R -0 : H. | H H 1L
- 3. Isolation of a natural product gave a ketone of molecular formula C8H160. It was decided that this compound must have one of the structures (2 or 3) shown but previous work (pre-mass spectrometry) did not provide a clear distinction between them. The mass spectrum was determined and the base peak was at m/z 72. Deduce with reasoning the structure of the ketone (drawing out the key fragmentation processes to support your deduction). 3In the expanded region of 1H NMR for 4-t-butylcyclohexanols, the peak at 4.05 ppm integrates to 1.0 while the peak at 3.52 ppm integrates to 2.52. Please use this information to calculate the percentage of each isomer in the sample. QUESTION- Based on the 1H NMR, Please explain the cis vs. trans product ratio. Is it consistent with the expected results? Why or why not?Why saturated hydrocarbons show no Absorption in UV/VIS region (200nm to 800nm)?
- Draw all of the products, both organic and inorganic, that result from the following bimolecular elimination (E2) step. Be sure to include all lone pairs of electrons and nonzero formal charges.Acyl transfer (nucleophilic substitution at carbonyl) reactions proceed in two stages via a "tetrahedral intermediate." Draw the tetrahedral intermediate as it is first formed in the following reaction. H3C NH₂ HCI/H₂O reflux • You do not have to consider stereochemistry. • Include all valence lone pairs in your answer. • Do not include counter-ions, e.g., Na+, I, in your answer. • In cases where there is more than one answer, just draw one.Acyl transfer (nucleophilic substitution at carbonyl) reactions proceed in two stages via a "tetrahedral intermediate." Draw the tetrahedral intermediate as it is first formed in the following reaction. H3C. ... NH2 HCI/H₂O reflux • You do not have to consider stereochemistry. • Include all valence lone pairs in your answer. • Do not include counter-ions, e.g., Na+, I, in your answer. • In cases where there is more than one answer, just draw one. + 4 n [ ?
- A. Below is a “Name Reaction” - Clemensen reduction. Describe how the IR spectrum could be used to tell if the reactions had been successful. Provide approximate wave numbers and the corresponding functional groups for the key absorption bands and/or peaks in IR. You might want to describe from two aspects: which peak(s) of what functional group(s) should appear in the IR of the product (that is different from the reactant); which peak(s) of what functional group(s) should disappear in the IR of the product (that is present in the reactant B. For the Clemensen reduction (same reaction), describe how the 1H NMR spectrum could be used to tell if the reactions had been successful. Provide approximate chemical shifts and the integral and the “splitting” of the “unique” in the NMR spectrum. You might want to describe from two aspects: which peak(s) should have a change in chemical shift(s); which peak(s) should have a change in integral; which has a splitting change; which peak(s) will be…An organic chemistry experiment involves a nucleophilic substitution (SN2) reaction using 1-iodobutane and 2-naphthoxide ion. The 2-naphthoxide ion is generated from 2-naphthol and sodium hydroxide in an ethanol solvent. The experiment includes steps like generating the nucleophile, conducting the SN2 reaction, and analyzing the product using 1H NMR spectroscopy. Question: Write the structure of the undesired side product if CH3CH2O‾ (ethoxide) reacts with 1-iodobutane.Explain in detail how the spectroscopic data shows that cyclohexanol, the reactant, produced the expected product, cyclohexene. Is the product pure? How do you know? Refer to specific frequencies in the IR spectrum and specific signals in the NMR spectra to support your conclusion.
