what are the 2 blanks? I think the first one is correct but I am not sure.
Homework Answers
The first step of the hydrolysis reaction conducted by carboxylic esterases is a (nucleophilic) attack of an electron rich oxygen on the enzyme to the (electrophilic) carbonyl carbon of the ester.
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what are the 2 blanks? I think the first one is correct but I am
not...
Why does the following reaction use 2 equivalents of amine? 2@g CHANH. Products??? The first equivalent...
Why does the following reaction use 2 equivalents of amine? 2@g CHANH. Products??? The first equivalent undergoes nucleophilie attack with the carbonyl carbon, the second equivalent neutralizes the acid byproduct The first equivalent undergoes electrophilie attack with the carbonyl carbon, the second equivalent undergoes nucleophilic attack with the carbonyl oxygen The first equivalent undergoes nucleophili tak with the carbonyl carbon, the second equivalent undergoes nucleophilic attack with the carbonyl oxygen The first equivalent undergoes nucleophilic attack with the carbonyl carbon,...
5) In the "reverse" of esterification, esters can be hydrolyzed with aqueous NaOH (as shown below)....
5) In the "reverse" of esterification, esters can be hydrolyzed with aqueous NaOH (as shown below). The factors that influence the rate of ester hydrolysis are similar to those that affect the rate of esterification described above in problem #4. The first step in this mechanism is nucleophilic attack of hydroxide on the carbonyl carbon for form a tetrahedral intermediate, followed by loss of the alcohol. OH/H20 OH/H, 0 0 0 ROH + R'OH - ROR too a. Which one...
Which of the following statement is correct about the mechanism of hemiacetal and acetal formation? A....
Which of the following statement is correct about the mechanism of hemiacetal and acetal formation? A. In the hemiacetal formation mechanism, the oxygen on the alcohol uses its lone pair to "attack the carbonyl carbon before the protonation of the carbonyl oxygen B. The carbocation formation is not favored during the hemiacetal formation mechanism, this is why hemiacetal are generally unstable and very reactive C. In the acetal formation mechanism, hydrolysis of water to the hemiacetal carbon center occurs as...
Answer the following Questions 1. What is the correct name for the following compound? I " (CHCHCHCO MẠCH, a. 2-met...
Answer the following Questions 1. What is the correct name for the following compound? I " (CHCHCHCO MẠCH, a. 2-methyl-4-hexanone bb. 5-methyl-3-hexanone c. 2-methyl-3-hexanone d. ethyl isopropyl ketonel. 2. Which of the following statements is incorrect regarding the compound propanal. a. The carbonyl carbon is sp-hybridized b. In solution propanal is in equilibrium with l-propen-1-ol cc. The carbonyl carbon is susceptible to electrophilic attack d. The carbonyl oxygen is readily protonated by a Bristed acid e. The carbonyl carbon is...
help Which one is the major product of the following reaction sequence? 1. excess CHI 2....
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Which one is the major product of the following reaction sequence? 1. excess CHI 2. Ag,0,H,O heat NH2 о What happens in the first step of this reaction? не OH + H2O OH The carbonyl carbon becomes protonated The water becomes protonated The sp oxygen of the ester becomes protonated The carbonyl oxygen becomes protonated
Paragraph Styles 6. ... 7 1. Why is an ester less reactive to nucleophilic acyl substitution...
Paragraph Styles 6. ... 7 1. Why is an ester less reactive to nucleophilic acyl substitution than an acid chloride? A) Chloride is a better leaving group B) Oxygen is better at donating electron density into the carbonyl with added resonance stability. C) Chloride is a better leaving group and compared to chlorine, oxygen is better at donating electron density into the carbonyl with added resonance stability D) The alkoxy anion is less basic than the chloride anion. 2. What...
What is the IUPAC name of the given molecule? OH Br 1-bromo-2-ethyl-2-hydroxy-3-methylpentanoic acid 2-ethyl-3-methylpentan-2-ol-1-carboxyl bromide 2-ethyl-3-methyl-2-ol-pentanoyl...
What is the IUPAC name of the given molecule? OH Br 1-bromo-2-ethyl-2-hydroxy-3-methylpentanoic acid 2-ethyl-3-methylpentan-2-ol-1-carboxyl bromide 2-ethyl-3-methyl-2-ol-pentanoyl bromide O2-ethyl-2-hydroxy-3-methylpentanoyl bromide What statement is TRUE about the mechanism for the reaction shown here? CH,(CH)2CO,CH, NaOH CH3(CH12COCH excess heat CH3(CH)2CO,CH2 Water attacks the carbonyl carbon to form a tetrahedral intermediate. The first step of the reaction involves protonation of the ester carbonyl oxygen. One of the products formed is glycerol. The hydroxide deprotonates the alpha carbon. Which bases among the following is/are used...
What statement is TRUE about the mechanism for the reaction shown here? CHỊ(CH4)2COẠCH, CH,(CHỊ) CO,CH 2,...
What statement is TRUE about the mechanism for the reaction shown here? CHỊ(CH4)2COẠCH, CH,(CHỊ) CO,CH 2, CO,CH NAOH excess heat CHỊ(CH) CÓ CH, Water attacks the carbonyl carbon to form a tetrahedral intermediate. The first step of the reaction involves protonation of the ester carbonyl oxygen. One of the products formed is CH3(CH2)2CO2Na. Water deprotonates the alpha carbon.
What is the correct name for the following compound? d) 5-oxo-3-octenoic acid What is the defining...
What is the correct name for the following compound? d) 5-oxo-3-octenoic acid What is the defining functional group of a carboxylic acid? a) an-H attached to a carbonyl group b) an-H attached to a carbon-carbon triple bond c) an-OH attached to a carbonyl group d) an -OH group attached to a O-C double bond e) an-OH group attached to an aromatic ring To convert a carboxylic acid to an aldehyde a) convert the acid to an acid chloride, then use...
For the following reaction, which statement best describes the first step? Br2 CH3 Products??? CH3COOH One...
For the following reaction, which statement best describes the first step? Br2 CH3 Products??? CH3COOH One of the pi bonds of benzene will attack bromine via a nucleophilic attack One of the pi bonds of benzene will attack bromine via an electrophilic attack The lone pair of oxygen will attack the bromine via a nucleophilic attack The lone pair of oxygen will attack the bromine via an electrophilic attack One of the pi bonds of benzene will attack CH3COOH via...
Why does the following reaction use 2 equivalents of amine? 2@g CHANH. Products??? The first equivalent undergoes nucleophilie attack with the carbonyl carbon, the second equivalent neutralizes the acid byproduct The first equivalent undergoes electrophilie attack with the carbonyl carbon, the second equivalent undergoes nucleophilic attack with the carbonyl oxygen The first equivalent undergoes nucleophili tak with the carbonyl carbon, the second equivalent undergoes nucleophilic attack with the carbonyl oxygen The first equivalent undergoes nucleophilic attack with the carbonyl carbon,...
5) In the "reverse" of esterification, esters can be hydrolyzed with aqueous NaOH (as shown below). The factors that influence the rate of ester hydrolysis are similar to those that affect the rate of esterification described above in problem #4. The first step in this mechanism is nucleophilic attack of hydroxide on the carbonyl carbon for form a tetrahedral intermediate, followed by loss of the alcohol. OH/H20 OH/H, 0 0 0 ROH + R'OH - ROR too a. Which one...
Which of the following statement is correct about the mechanism of hemiacetal and acetal formation? A. In the hemiacetal formation mechanism, the oxygen on the alcohol uses its lone pair to "attack the carbonyl carbon before the protonation of the carbonyl oxygen B. The carbocation formation is not favored during the hemiacetal formation mechanism, this is why hemiacetal are generally unstable and very reactive C. In the acetal formation mechanism, hydrolysis of water to the hemiacetal carbon center occurs as...
Answer the following Questions 1. What is the correct name for the following compound? I " (CHCHCHCO MẠCH, a. 2-methyl-4-hexanone bb. 5-methyl-3-hexanone c. 2-methyl-3-hexanone d. ethyl isopropyl ketonel. 2. Which of the following statements is incorrect regarding the compound propanal. a. The carbonyl carbon is sp-hybridized b. In solution propanal is in equilibrium with l-propen-1-ol cc. The carbonyl carbon is susceptible to electrophilic attack d. The carbonyl oxygen is readily protonated by a Bristed acid e. The carbonyl carbon is...
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Which one is the major product of the following reaction sequence? 1. excess CHI 2. Ag,0,H,O heat NH2 о What happens in the first step of this reaction? не OH + H2O OH The carbonyl carbon becomes protonated The water becomes protonated The sp oxygen of the ester becomes protonated The carbonyl oxygen becomes protonated
Paragraph Styles 6. ... 7 1. Why is an ester less reactive to nucleophilic acyl substitution than an acid chloride? A) Chloride is a better leaving group B) Oxygen is better at donating electron density into the carbonyl with added resonance stability. C) Chloride is a better leaving group and compared to chlorine, oxygen is better at donating electron density into the carbonyl with added resonance stability D) The alkoxy anion is less basic than the chloride anion. 2. What...
What is the IUPAC name of the given molecule? OH Br 1-bromo-2-ethyl-2-hydroxy-3-methylpentanoic acid 2-ethyl-3-methylpentan-2-ol-1-carboxyl bromide 2-ethyl-3-methyl-2-ol-pentanoyl bromide O2-ethyl-2-hydroxy-3-methylpentanoyl bromide What statement is TRUE about the mechanism for the reaction shown here? CH,(CH)2CO,CH, NaOH CH3(CH12COCH excess heat CH3(CH)2CO,CH2 Water attacks the carbonyl carbon to form a tetrahedral intermediate. The first step of the reaction involves protonation of the ester carbonyl oxygen. One of the products formed is glycerol. The hydroxide deprotonates the alpha carbon. Which bases among the following is/are used...
What statement is TRUE about the mechanism for the reaction shown here? CHỊ(CH4)2COẠCH, CH,(CHỊ) CO,CH 2, CO,CH NAOH excess heat CHỊ(CH) CÓ CH, Water attacks the carbonyl carbon to form a tetrahedral intermediate. The first step of the reaction involves protonation of the ester carbonyl oxygen. One of the products formed is CH3(CH2)2CO2Na. Water deprotonates the alpha carbon.
What is the correct name for the following compound? d) 5-oxo-3-octenoic acid What is the defining functional group of a carboxylic acid? a) an-H attached to a carbonyl group b) an-H attached to a carbon-carbon triple bond c) an-OH attached to a carbonyl group d) an -OH group attached to a O-C double bond e) an-OH group attached to an aromatic ring To convert a carboxylic acid to an aldehyde a) convert the acid to an acid chloride, then use...
For the following reaction, which statement best describes the first step? Br2 CH3 Products??? CH3COOH One of the pi bonds of benzene will attack bromine via a nucleophilic attack One of the pi bonds of benzene will attack bromine via an electrophilic attack The lone pair of oxygen will attack the bromine via a nucleophilic attack The lone pair of oxygen will attack the bromine via an electrophilic attack One of the pi bonds of benzene will attack CH3COOH via...
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