a)
Interpretation:
How to prepare 4-methylpentan-2-one from 4-methyl-3-pentene-2-one is to be shown.
Concept introduction:
The double bond in an unsaturated
To show:
How to prepare 4-methylpentan-2-one from 4-methyl-3-pentene-2-one.
b)
Interpretation:
How to prepare 2-methylpent-2-ene from 4-methyl-3-pentene-2-one is to be shown.
Concept introduction:
The carbonyl group in a unsaturated ketone can be reduced to –CH2 without affecting the double bond by treating it with hydrazine in the presence of KOH (Wolf-Kishner reduction).
To show:
How to prepare 2-methylpent-2-ene from 4-methyl-3-pentene-2-one.
c)
Interpretation:
How to prepare 2-methylpentane from 4-methyl-3-pentene-2-one is to be shown.
Concept introduction:
The double bond in an unsaturated ketone is reduced without affecting the carbonyl group by treating it with H2/Pd. The carbonyl group of the saturated ketone formed can be converted to –CH2 group by Wolff-Kishner reduction.
To show:
How to prepare 2-methylpentane from 4-methyl-3-pentene-2-one.
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Chapter 19 Solutions
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- 5. A solution of sucrose is fermented in a vessel until the evolution of CO2 ceases. Then, the product solution is analyzed and found to contain, 45% ethanol; 5% acetic acid; and 15% glycerin by weight. If the original charge is 500 kg, evaluate; e. The ratio of sucrose to water in the original charge (wt/wt). f. Moles of CO2 evolved. g. Maximum possible amount of ethanol that could be formed. h. Conversion efficiency. i. Per cent excess of excess reactant. Reactions: Inversion reaction: C12H22O11 + H2O →2C6H12O6 Fermentation reaction: C6H12O6 →→2C2H5OH + 2CO2 Formation of acetic acid and glycerin: C6H12O6 + C2H5OH + H₂O→ CH3COOH + 2C3H8O3arrow_forwardShow work. don't give Ai generated solution. How many carbons and hydrogens are in the structure?arrow_forward13. (11pts total) Consider the arrows pointing at three different carbon-carbon bonds in the molecule depicted below. Bond B 2°C. +2°C. cleavage Bond A •CH3 + 26.← Cleavage 2°C. + Bond C +3°C• CH3 2C Cleavage E 2°C. 26. weakest bond Intact molecule Strongest 3°C 20. Gund Largest argest a. (2pts) Which bond between A-C is weakest? Which is strongest? Place answers in appropriate boxes. C Weakest bond A Produces Most Bond Strongest Bond Strongest Gund produces least stable radicals Weakest Stable radical b. (4pts) Consider the relative stability of all cleavage products that form when bonds A, B, AND C are homolytically cleaved/broken. Hint: cleavage products of bonds A, B, and C are all carbon radicals. i. Which ONE cleavage product is the most stable? A condensed or bond line representation is fine. 13°C. formed in bound C cleavage ii. Which ONE cleavage product is the least stable? A condensed or bond line representation is fine. • CH3 methyl radical Formed in Gund A Cleavage c.…arrow_forward