Homework Answers
Claisen
condensation: The Claisen condensation is a
carbon–carbon bond forming reaction that occurs
between two esters or one ester and another carbonyl compound in
the presence of a strong base, resulting in a β-keto ester or a
β-diketone.
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Question 1 0.5 pts ethyl acetate + NaOEt + EtOH then dilute acetic acid quench -->...
Question 5 0.5 pts ethyl 2-isopropyl-3-oxobutanoate + NaOEt +EtOH + methyl iodide --> something else! no...
Question 5 0.5 pts ethyl 2-isopropyl-3-oxobutanoate + NaOEt +EtOH + methyl iodide --> something else! no reaction! ethyl 3-oxo-2 buteneoate ethyl 2-propyl-2-methyl-3-oxobutanoate ethyl 2-isopropyl-2-methyl-3-oxobutanoate Question 6 0.5 pts sat ethyl 2-isopropyl-2-methyl-3-oxobutanoate + KOH/water then dilute sulfuric acid and heat --> something else! ethyl 2-isopropyl-2-methyl-3-oxobutanoic acid 3,4-dimethyl-2-pentanone 2,3-dimethyl-4-pentanone 3,3-dimethyl-2-pentanone
QUESTION 1 Propanoyl chloride reacts with an acetate anion to give which product? Acetic propanoic anhydride...
QUESTION 1 Propanoyl chloride reacts with an acetate anion to give which product? Acetic propanoic anhydride propanoic acetic anhydride propyl acetate Cacetyl propanoate QUESTION 2 Reaction of benzoic acid with thionyl chloride produces compound A. Compound A is reacted with 2 moles of ammonia to give compound B which is then reacted with thionyl chloride to furnish compound C. Compounds C is then treated with NaOH in the first step and acidified with acid in the second step to give...
Question 10 1 pts What hazard classification would you expect a 90% ethyl acetate/10% hexane mixture...
Question 10 1 pts What hazard classification would you expect a 90% ethyl acetate/10% hexane mixture to have? Flammable liquid Corrosive Toxic Flammable solid Question 16 1 pts The TLC diagram shown represents the analysis of three different compounds. Which of the three columns is/are likely to represent a pure compound, and why? 0 0 2 * 3 Columns 1 and 3, because there is only one spot in each. Column 2 only, because there are two spots present Columns...
Question 19 2.5 pts Order the following compounds from most acidic to least acidic. دهد تا...
Question 19 2.5 pts Order the following compounds from most acidic to least acidic. دهد تا با 2 >1 >4 > 3 @ 1 > 4>2 > 3 1 >2>4> 2 > 3 * Previous Next → Question 20 2.5 pts What is required to complete the synthesis? H30+ Reactant 1. NaOE 2. bromoethane 1. NaOE 2. 1-brom malonic ester acetoacetic ester 2 ethyl methyl ketone pentane-2,4-dione Question 22 2.5 pts Which compound below has the most acidic proton(s)? H2CO...
decimal. I variable. Find P(X<0). Express your answer as a 0.5 Question 2 1 pts Let...
decimal. I variable. Find P(X<0). Express your answer as a 0.5 Question 2 1 pts Let X be a standard normal random variable. Find PIX <-2.27). Express your answer as a decimal. Question 3 1 pts Let X be a standard normal random variable. Find PX 2.82), Express your answer as a
Question 5 0.5 pts ethyl 2-isopropyl-3-oxobutanoate + NaOEt +EtOH + methyl iodide --> something else! no reaction! ethyl 3-oxo-2 buteneoate ethyl 2-propyl-2-methyl-3-oxobutanoate ethyl 2-isopropyl-2-methyl-3-oxobutanoate Question 6 0.5 pts sat ethyl 2-isopropyl-2-methyl-3-oxobutanoate + KOH/water then dilute sulfuric acid and heat --> something else! ethyl 2-isopropyl-2-methyl-3-oxobutanoic acid 3,4-dimethyl-2-pentanone 2,3-dimethyl-4-pentanone 3,3-dimethyl-2-pentanone
QUESTION 1 Propanoyl chloride reacts with an acetate anion to give which product? Acetic propanoic anhydride propanoic acetic anhydride propyl acetate Cacetyl propanoate QUESTION 2 Reaction of benzoic acid with thionyl chloride produces compound A. Compound A is reacted with 2 moles of ammonia to give compound B which is then reacted with thionyl chloride to furnish compound C. Compounds C is then treated with NaOH in the first step and acidified with acid in the second step to give...
Question 10 1 pts What hazard classification would you expect a 90% ethyl acetate/10% hexane mixture to have? Flammable liquid Corrosive Toxic Flammable solid Question 16 1 pts The TLC diagram shown represents the analysis of three different compounds. Which of the three columns is/are likely to represent a pure compound, and why? 0 0 2 * 3 Columns 1 and 3, because there is only one spot in each. Column 2 only, because there are two spots present Columns...
Question 19 2.5 pts Order the following compounds from most acidic to least acidic. دهد تا با 2 >1 >4 > 3 @ 1 > 4>2 > 3 1 >2>4> 2 > 3 * Previous Next → Question 20 2.5 pts What is required to complete the synthesis? H30+ Reactant 1. NaOE 2. bromoethane 1. NaOE 2. 1-brom malonic ester acetoacetic ester 2 ethyl methyl ketone pentane-2,4-dione Question 22 2.5 pts Which compound below has the most acidic proton(s)? H2CO...
decimal. I variable. Find P(X<0). Express your answer as a 0.5 Question 2 1 pts Let X be a standard normal random variable. Find PIX <-2.27). Express your answer as a decimal. Question 3 1 pts Let X be a standard normal random variable. Find PX 2.82), Express your answer as a
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