Provide the structures of the two enol tautomers of 2-methyl-3-pentanone and circle the most stable.
Question 3 (3 Points) Draw the enol tautomers for each of the following compounds. If the compound has more than one enol tautomer, indicate which one is more stable. a. CHșCH3CH2CH2CH3 CH2 CH3 CH,
Question 13 (2.5 points) Which of the following can undergo keto-enol tautomerism? 2-methyl-3-pentanone 3,3-dimethyl-2-butanone both a and b neither a norb Question 14 (2.5 points) What is the IUPAC name for the following carboxylic acid? 4-ethylpentanoic acid 2-propylbutanoic acid 3-carboxyhexane 2-ethylpentanoic acid
Draw 3-ethyl-3-methyl-2-pentanone in the space provided. Draw 3-ethyl-3-methyl-2-pentanone in the space provided.
Which of the following is the structure of the most stable enol form of 2-methylpentan- 3-one? он ОН о ОН ОН
Draw 3 resonance structures of SCN. Determine which of the 3 is the most stable. Provide the reasoning for your choice.
4. For each pair of structures below circle the most relatively stable one. Show work by drawing relevant chair structures and/or Newman projections (as needed) to clearly illustrate why. It is best practice here that only the most stable conformations for each compound are being compared in each set. For clarity, provide a few words that explain your analysis when comparing the illustrations. (12pts total for this problem) (a) II vs. (b) vs.
Suggest suitable starting materials and reagents for the synthesis of 3-cyclopentyl-4-methyl-2-pentanone using enolate alkylation reactions. Select one: a. i) 3-methyl-2-pentanone, LDA ii) bromocyclopentane b. i) 4-ethyl-2-pentanone, LDA ii) bromocyclopentane c. i) 4-methyl-2-pentanone, NaH ii) bromocyclohexane d. i) 4-methyl-2-pentanone, LDA ii) bromocyclopentane e. i) 3-methyl-2-butanone, pyridine ii) bromocyclopentane
circle the most stable isomer from each list 3. [06 pts.] Circle the most stable isomer from each list. A.
Circle the most stable and underline the least stable carbocations. 1.(1 pt each) Circle the most stable and underline the least stable carbocations below. 3- a.