Quiz 5 1. If 2-butyne was converted to 1-butyne. How could this be verified with IR?...
9. Show how 1-butyne could be synthesized from each of the followines P (a) 1-Butene (b) 1-Chlorobutane (c) 1-Chloro-1-butene (d) 1,1-Dichlorobutane 10. Shown below is the final step in a synthesis of an important perfume constituent, cis- jasmone. Which reagents would you choose to carry out this last step? cis-Jasmone
1. IR Spectroscopy (IR) a) Describe how you could distinguish between the reactant 2-pentanone and the product 2-pentanol using IR spectroscopy. Use specific IR absorption bands for each compound that distinguishes it from the other. (3 pts) 1. NaBH 2. HO 2-pentanone b) The IR spectrum of a compound shows a strong and sharp absorption band at 3300 and a medium sharp absorption at 2150 cm-1. Which structure below fits this description? (1 pts) CH CH C CCH CHCH CH...
Give the structure of the products you would expect from the reaction (if any) of 2-butyne with Li/liquid NH3. If there is no product, simply draw the reactant, 2-butyne Give the structure of the products you would expect from the reaction (if any) of 2-butyne with O3, then HOAc. If there is no product, simply draw the reactant, 2-butyne. How many equivalents of product will be created for one equivalent reactant?
Alkynes Synthesis Examples 1. Show how to synthesize 2-nonyne from acetylene. 2. Synthesis 2-butyne-1-ol from propyne. B. From propyne, show the step to synthesize 4-hexyne- 2-ol. 4. Synthesis 3-methyl-4-octyne-3-ol from acetylene. 6. Synthesis 6-nonyne-4-ol from acetylene.
Synthesis of cyclohexane lab 1) Draw the mechanism of the reaction (2) Explain how cyclohexene could form at the beginning of this reaction. Use a mechanism to support your answer. (3) Look up the IR spectra for cyclohexanol and cyclohexanone and discuss their key differences. Draw or attach the IR spectra. (4) Did you perform a ketone test? If so, discuss your results
1. Provide the missing conditions for both steps and show how the amide can be converted to the corresponding acid chloride. Step 1 Step 2 Step 1 Conditions for step 1 (brain-twister: is there just one way?): Conditions for step 2 (same brain-twister): Full reaction scheme: 2. Consider the following reaction: 1. NaOM/MeOH 2. H,0* Does it have a specific name? How many products are possible? Show all of them. Suggest a synthetic route that leads to a lesser number...
Post lab questions for IR lab (P912-3):1, 2. Indicate how you could distinguish between the following pairs of using IR a.
Post lab questions for IR lab (P912-3):1, 2. Indicate how you could distinguish between the following pairs of using IR a.
Show how the following compound could be prepared from 1-butyne. You may use any necessary reagents. You must show all stable intermediates formed along the way and all necessary reagents used (20 points). multiple steps!
Show how the following compound could be prepared from 1-butyne. You may use any necessary reagents. You must show all stable intermediates formed along the way and all necessary reagents used (20 points). multiple steps! Br
The following compound is an intermediate of what reaction? Br 1-butyne with 2 equiv HBr 1 butene with Br2 and hy © 1-butyne with 1 equiv Br2 1- butene with NBS and hy 1-buytne with 2 equl Herand ROOR