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5. (6 pts) 2-iodo-2-methylbutane can undergo the following Sn1 solvolysis reaction in water: K OH₂ +...
1. Preparation of 2-chloro-2-methylbutane from 2-methyl-2-butanol involves Sw1 reaction mechanism. What does Sw1 mean? (1 pts)...
1. Preparation of 2-chloro-2-methylbutane from 2-methyl-2-butanol involves Sw1 reaction mechanism. What does Sw1 mean? (1 pts) 2. This reaction prefers to undergo via Sw1 mechanism over Sw2. Why? (3 pts) 3. Write the structure of carbocation and nucleophile involved in this reaction. (2 pts) 4. Substrate alcohol (2-methyl-2-butanol) consists a poor leaving group (OH group). How do you covert this poor leaving group into good leaving group? (2 pts) 5. Which will be the bottom layer between aqueous and organic...
need help with part c and d L euly butane 2-chloro-2-methylbutane 2-chloro-3-methylbutane 2-chlorobutane c) Draw a...
need help with part c and d
L euly butane 2-chloro-2-methylbutane 2-chloro-3-methylbutane 2-chlorobutane c) Draw a curved-arrow mechanism for the following reaction: - H2O Hạº, d) Label the following reactions as S1, S2, E1, E2, addition, or acid/base (2 pts, cach). i. Bromoethane becomes ethanol upon treatment with hydroxide ion. ii. 1-Methyl-1-cyclohexanol reacts with acid in water to form l-methylcyclohexene. iii. Propyne becomes propane in the presence of hydrogen and metal catalyst. iv. I-iodopropane reacts with potassium tert-butoxide. SN e)...
Gradescope #2 This question is worth 10 points. The reaction between (R)-2-bromo-3-methylbutane and water in the...
Gradescope #2 This question is worth 10 points. The reaction between (R)-2-bromo-3-methylbutane and water in the presence of heat forms Br", H3O+ and two organic products. Draw a stepwise mechanism for this reaction, clearly showing how each product is formed. Use curved arrows to show electron movement, and include all reactive intermediates, resonance structures, etc. Br H2O Δ
1. [10 pts] Consider the elimination reaction for the following alkyl halide with sodium methoxide in...
1. [10 pts] Consider the elimination reaction for the following alkyl halide with sodium methoxide in methanol (Na* OCH, CH,OH). CH NaOme MeOH CH Compound A Problem 2c Draw the major expected organic product (a) Redraw Compound A as seen in Viewpoint I below left as a Newman projection on the template provided in Problem 2a (below). Hint: Fill in missing Hs ar C2 and C3 to help you get started! (b) Rotate the C2 C3 bond to obtain the...
Show the curved arrow mechanism for the reaction...
1.2.3.4.5.6.7.8.Show the curved arrow mechanism for the reaction between ethoxide and methanol to give ethanol and the methoxide ion. 1st attempt Jual See Periodic Table See Hint OH-Ö: Add the missing curved arrow notation.The carbon-metal bond in organometallic Grignard reagents exhibits significant covalent character. However, we can treat these compounds as electron-rich carbanions because of the large difference in electronegativity between carbon and magnesium. These reagents are great to form carbon-carbon bonds but must be kept in an anhydrous environment...
1. LiAIHA 2. H2O H3C NH2 H3C NH2 Amides are reduced to amines by treatment with...
1. LiAIHA 2. H2O H3C NH2 H3C NH2 Amides are reduced to amines by treatment with LiAlH4. Two additions of hydride are required. The carbonyl oxygen atom is lost in complex with the aluminum. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions no XT ... AH, NH2 H3C7NH, 30-AIHz H3C 7 H20+ Ho, H. NH, NH3 HAC NHA H3C OH Amides can be hydrolyzed to yield carboxylic acids. The conditions are...
2. (3 pts.) The anthocyanin that is extracted from the red cabbage is in the neutral,...
2. (3 pts.) The anthocyanin that is extracted
from the red cabbage is in the neutral, purple colored form,
A. When acid is added it becomes the protonated
oxonium ion form, AH+. The
reaction is shown below for A reacting with the
hydronium ion, H3O+. For the reaction shown below, indicate the
Lewis acid and base (LA/LB) and whether they are also Bronsted
acids/bases (BA/BB), and, add the curved-arrow pushing showing bond
making and breaking. Note, this is trickier than...
(Review Topics 1. Hg(OAC)2, H20 2. NaBH, . H2O OH CHI CH3 H3C H3C Hoc Acid-catalyzed...
(Review Topics 1. Hg(OAC)2, H20 2. NaBH, . H2O OH CHI CH3 H3C H3C Hoc Acid-catalyzed addition of water to an alkene yields an alcohol with Markovnikov repiochemistry. The electrophilic adds to the sp? carbon with the most hydrogens to yield the most stable carbocation intermediate, which then adds water to give the product alcohol Because a carbocation intermediate is formed, rearrangements can occur prior to the addition of water To avoid the possibility of rearrangement and still give a...
2 problems REVIEW Topics [References) CH HC OCH Br2 CH3 B H3C CH,OH H₂C CH₂ Electrophilic...
2 problems
REVIEW Topics [References) CH HC OCH Br2 CH3 B H3C CH,OH H₂C CH₂ Electrophilic addition of hypohalous acids to alkenes yields a 1,2-haloalcohol called a halohydrin. Halohydrin formation, however, does not result from the addition of HOBr, for example. Instead the addition is done indirectly by reaction of the alkene with Br, in the presence of water. The reaction also works with Cl2 to give chlorohydrins instead of bromohydrins. The reaction proceeds through a cyclic intermediate known as...
Multistep reaction mechanisms Group Activity Treating (S)-2-butanol with HBr results in the following two step reaction: Step 1: CH3CH(OH)CH2CH3 + HBr ⇌ CH3CH(OH2)CH2CH3+ + Br- Step 2: CH3CH(OH2)CH2CH3+ + Br- ⇌ CH3CH(Br)CH2CH3 + H2O Draw a mechanism for e
Multistep reaction mechanisms Group ActivityTreating (S)-2-butanol with HBr results in the following two step reaction: Step 1: CH3CH(OH)CH2CH3 + HBr ⇌ CH3CH(OH2)CH2CH3+ + Br-Step 2: CH3CH(OH2)CH2CH3+ + Br- ⇌ CH3CH(Br)CH2CH3 + H2ODraw a mechanism for each step. Draw structures for all reactants and products, including correct stereochemistry (wedges and dashes). Show all the curved arrows in each step, and label each curved arrow according to whether it represents proton transfer, loss of a leaving group, nucleophilic attack, or carbocation rearrangement.
1. Preparation of 2-chloro-2-methylbutane from 2-methyl-2-butanol involves Sw1 reaction mechanism. What does Sw1 mean? (1 pts) 2. This reaction prefers to undergo via Sw1 mechanism over Sw2. Why? (3 pts) 3. Write the structure of carbocation and nucleophile involved in this reaction. (2 pts) 4. Substrate alcohol (2-methyl-2-butanol) consists a poor leaving group (OH group). How do you covert this poor leaving group into good leaving group? (2 pts) 5. Which will be the bottom layer between aqueous and organic...
need help with part c and d
L euly butane 2-chloro-2-methylbutane 2-chloro-3-methylbutane 2-chlorobutane c) Draw a curved-arrow mechanism for the following reaction: - H2O Hạº, d) Label the following reactions as S1, S2, E1, E2, addition, or acid/base (2 pts, cach). i. Bromoethane becomes ethanol upon treatment with hydroxide ion. ii. 1-Methyl-1-cyclohexanol reacts with acid in water to form l-methylcyclohexene. iii. Propyne becomes propane in the presence of hydrogen and metal catalyst. iv. I-iodopropane reacts with potassium tert-butoxide. SN e)...
Gradescope #2 This question is worth 10 points. The reaction between (R)-2-bromo-3-methylbutane and water in the presence of heat forms Br", H3O+ and two organic products. Draw a stepwise mechanism for this reaction, clearly showing how each product is formed. Use curved arrows to show electron movement, and include all reactive intermediates, resonance structures, etc. Br H2O Δ
1. [10 pts] Consider the elimination reaction for the following alkyl halide with sodium methoxide in methanol (Na* OCH, CH,OH). CH NaOme MeOH CH Compound A Problem 2c Draw the major expected organic product (a) Redraw Compound A as seen in Viewpoint I below left as a Newman projection on the template provided in Problem 2a (below). Hint: Fill in missing Hs ar C2 and C3 to help you get started! (b) Rotate the C2 C3 bond to obtain the...
1.2.3.4.5.6.7.8.Show the curved arrow mechanism for the reaction between ethoxide and methanol to give ethanol and the methoxide ion. 1st attempt Jual See Periodic Table See Hint OH-Ö: Add the missing curved arrow notation.The carbon-metal bond in organometallic Grignard reagents exhibits significant covalent character. However, we can treat these compounds as electron-rich carbanions because of the large difference in electronegativity between carbon and magnesium. These reagents are great to form carbon-carbon bonds but must be kept in an anhydrous environment...
1. LiAIHA 2. H2O H3C NH2 H3C NH2 Amides are reduced to amines by treatment with LiAlH4. Two additions of hydride are required. The carbonyl oxygen atom is lost in complex with the aluminum. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions no XT ... AH, NH2 H3C7NH, 30-AIHz H3C 7 H20+ Ho, H. NH, NH3 HAC NHA H3C OH Amides can be hydrolyzed to yield carboxylic acids. The conditions are...
2. (3 pts.) The anthocyanin that is extracted
from the red cabbage is in the neutral, purple colored form,
A. When acid is added it becomes the protonated
oxonium ion form, AH+. The
reaction is shown below for A reacting with the
hydronium ion, H3O+. For the reaction shown below, indicate the
Lewis acid and base (LA/LB) and whether they are also Bronsted
acids/bases (BA/BB), and, add the curved-arrow pushing showing bond
making and breaking. Note, this is trickier than...
(Review Topics 1. Hg(OAC)2, H20 2. NaBH, . H2O OH CHI CH3 H3C H3C Hoc Acid-catalyzed addition of water to an alkene yields an alcohol with Markovnikov repiochemistry. The electrophilic adds to the sp? carbon with the most hydrogens to yield the most stable carbocation intermediate, which then adds water to give the product alcohol Because a carbocation intermediate is formed, rearrangements can occur prior to the addition of water To avoid the possibility of rearrangement and still give a...
2 problems
REVIEW Topics [References) CH HC OCH Br2 CH3 B H3C CH,OH H₂C CH₂ Electrophilic addition of hypohalous acids to alkenes yields a 1,2-haloalcohol called a halohydrin. Halohydrin formation, however, does not result from the addition of HOBr, for example. Instead the addition is done indirectly by reaction of the alkene with Br, in the presence of water. The reaction also works with Cl2 to give chlorohydrins instead of bromohydrins. The reaction proceeds through a cyclic intermediate known as...
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