![(References] Rio de H* OH this method does work Fischer esterification cannot be used to prepare tert-butyl esters. Instead,](http://img.homeworklib.com/questions/0832c850-e7e9-11ea-bd75-b3d5a6234948.png?x-oss-process=image/resize,w_560)
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(References] Rio de H* OH this method does work Fischer esterification cannot be used to prepare...
x H R OH ОН R this method does not work Fischer esterification cannot be used...
x H R OH ОН R this method does not work Fischer esterification cannot be used to prepare tert-butyl esters. Draw curved arrows to show the movement of electrons in this step of the reaction mechanism. Arrow-pushing Instructions :0: + :OH ox H-OH ox H20 R R
OH H+ CH3 H3C OH Esters can be synthesized by an acid-catalyzed nucleophilic acyl substitution between...
OH H+ CH3 H3C OH Esters can be synthesized by an acid-catalyzed nucleophilic acyl substitution between an alcohol and a carboxylic acid; this process is called the Fischer esterification reaction. Because the alcohol oxygen is a poor nucleophile, the carbonyl carbon is made a better electrophile by protonation of the carbonyl oxygen. The steps of the synthesis are all reversible. The reaction is generally driven to completion by using an excess of the liquid alcohol as a solvent, or by...
(References) R-CN 1. DIBALH 2. H30* R–CHO The reagent diisobutylaluminum hydride (DIBALH) reduces esters to aldehydes....
(References) R-CN 1. DIBALH 2. H30* R–CHO The reagent diisobutylaluminum hydride (DIBALH) reduces esters to aldehydes. When nitriles are treated with DIBALH, followed by ild acid hydrolysis, the product is also an aldehyde. raw curved arrows to show the movement of electrons in this step of the reaction mechanism. Arrow-pushing Instructions na -CH(CH3)2 CH(CHE R-C=N: R-CEN H-AL ΑΙ Н. -CH(CH3)2 CH(CH Submit Answer Try Another Version 5 item attempts remaining
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...
1. NaOEt CO2Et 2. H30+ 3. heat Br. Br CORET + H3C V CO2H H₂C +...
1. NaOEt CO2Et 2. H30+ 3. heat Br. Br CORET + H3C V CO2H H₂C + CO2 + E H3C CO2Et The malonic ester synthesis is a carbonyl alkylation reaction. It is used to prepare carboxylic acids from primary alkyl halides, lengthening the carbon In progress by two atoms. Thus, the product can be visualized as being a "substituted acetic acid." The reaction consists of three steps: generation of the enolate anion followed by SN 2 reaction with a primary...
МСРВА Alkenes are oxidized to give epoxides on treatment with a peroxyacid, RCo,H, such as metachloroperoxybenzoic...
МСРВА Alkenes are oxidized to give epoxides on treatment with a peroxyacid, RCo,H, such as metachloroperoxybenzoic acid (MCPBA). Peroxyacids transfer an oxygen atom to the alkene with syn stereochemistry, i.e. both C-O bonds form on the same face of the double bond, through a single step mechanism without intermediates. The oxygen atom farthest from the carbonyl group is the one transferred. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions - XT...
Question 1 1 pt (References) CH3 Question 2 1 pt Question 3 1 pt CH3 Question...
Question 1 1 pt (References) CH3 Question 2 1 pt Question 3 1 pt CH3 Question 4 1 pt CH Question 5 1 pt When isopropylidenecyclohexane is treated with strong acid at room temperature, isomerization occurs in two steps to yield 1- isopropyleyclohexene. One of these steps is shown below; add curved arrows to the mechanism to indicate the movement of electrons in this step. Question 6 1 pt Question 7 Arrow-pushing Instructions pt atid no XT other H-CI CH3...
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...
Chapter 6 [References) Question 5 o 1 pt CH3 CH3 OCH CH3 ÇI CH3 CI Cl2...
Chapter 6 [References) Question 5 o 1 pt CH3 CH3 OCH CH3 ÇI CH3 CI Cl2 CH3CHCH=CHCH2CH3 Question 6 1 pt CH3CHCHCHCH2CH3 SHCHICH.CH CH3CHCHCHCH2CH3 4,снено CHCHCH2CH3 CH3OH Question 7 1 pt CI OCH3 CI Question 8 ® 1 pt When 2-methyl-3-hexene is treated with Cl, in methanol, three products are formed (neglecting stereoisomers). Draw curved arrows to show the movement of electrons in this step of the reaction mechanism. Question 9 1 pt Question 10 1 pt Arrow-pushing Instructions Question...
Chapter 6 [References) Question 15 1 pt CI CI Question 16 1 pt HCI H3C CH3...
Chapter 6 [References) Question 15 1 pt CI CI Question 16 1 pt HCI H3C CH3 HC Question 17 CH3 H3C CH3 1 pt Question 18 1 pt H2C CH3 CI Question 19 1 pt CH3 H2C CH3 CI Question 20 1 pt Question 21 ® 1 pt Treating 1,3-pentadiene with one mole of HCl give a mixture of five isomeric products. Draw curved arrows to show the movement of electrons in this step of the reaction mechanism Question 22...
x H R OH ОН R this method does not work Fischer esterification cannot be used to prepare tert-butyl esters. Draw curved arrows to show the movement of electrons in this step of the reaction mechanism. Arrow-pushing Instructions :0: + :OH ox H-OH ox H20 R R
OH H+ CH3 H3C OH Esters can be synthesized by an acid-catalyzed nucleophilic acyl substitution between an alcohol and a carboxylic acid; this process is called the Fischer esterification reaction. Because the alcohol oxygen is a poor nucleophile, the carbonyl carbon is made a better electrophile by protonation of the carbonyl oxygen. The steps of the synthesis are all reversible. The reaction is generally driven to completion by using an excess of the liquid alcohol as a solvent, or by...
(References) R-CN 1. DIBALH 2. H30* R–CHO The reagent diisobutylaluminum hydride (DIBALH) reduces esters to aldehydes. When nitriles are treated with DIBALH, followed by ild acid hydrolysis, the product is also an aldehyde. raw curved arrows to show the movement of electrons in this step of the reaction mechanism. Arrow-pushing Instructions na -CH(CH3)2 CH(CHE R-C=N: R-CEN H-AL ΑΙ Н. -CH(CH3)2 CH(CH Submit Answer Try Another Version 5 item attempts remaining
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...
1. NaOEt CO2Et 2. H30+ 3. heat Br. Br CORET + H3C V CO2H H₂C + CO2 + E H3C CO2Et The malonic ester synthesis is a carbonyl alkylation reaction. It is used to prepare carboxylic acids from primary alkyl halides, lengthening the carbon In progress by two atoms. Thus, the product can be visualized as being a "substituted acetic acid." The reaction consists of three steps: generation of the enolate anion followed by SN 2 reaction with a primary...
МСРВА Alkenes are oxidized to give epoxides on treatment with a peroxyacid, RCo,H, such as metachloroperoxybenzoic acid (MCPBA). Peroxyacids transfer an oxygen atom to the alkene with syn stereochemistry, i.e. both C-O bonds form on the same face of the double bond, through a single step mechanism without intermediates. The oxygen atom farthest from the carbonyl group is the one transferred. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions - XT...
Question 1 1 pt (References) CH3 Question 2 1 pt Question 3 1 pt CH3 Question 4 1 pt CH Question 5 1 pt When isopropylidenecyclohexane is treated with strong acid at room temperature, isomerization occurs in two steps to yield 1- isopropyleyclohexene. One of these steps is shown below; add curved arrows to the mechanism to indicate the movement of electrons in this step. Question 6 1 pt Question 7 Arrow-pushing Instructions pt atid no XT other H-CI CH3...
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...
Chapter 6 [References) Question 5 o 1 pt CH3 CH3 OCH CH3 ÇI CH3 CI Cl2 CH3CHCH=CHCH2CH3 Question 6 1 pt CH3CHCHCHCH2CH3 SHCHICH.CH CH3CHCHCHCH2CH3 4,снено CHCHCH2CH3 CH3OH Question 7 1 pt CI OCH3 CI Question 8 ® 1 pt When 2-methyl-3-hexene is treated with Cl, in methanol, three products are formed (neglecting stereoisomers). Draw curved arrows to show the movement of electrons in this step of the reaction mechanism. Question 9 1 pt Question 10 1 pt Arrow-pushing Instructions Question...
Chapter 6 [References) Question 15 1 pt CI CI Question 16 1 pt HCI H3C CH3 HC Question 17 CH3 H3C CH3 1 pt Question 18 1 pt H2C CH3 CI Question 19 1 pt CH3 H2C CH3 CI Question 20 1 pt Question 21 ® 1 pt Treating 1,3-pentadiene with one mole of HCl give a mixture of five isomeric products. Draw curved arrows to show the movement of electrons in this step of the reaction mechanism Question 22...
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