Propose syntheses of each of the following acetals from carbonyl compounds and alcohols. Draw the structure...
Propose syntheses of each of the following acetals from carbonyl compounds and alcohols. Draw the structure of the carbonyl compound on the left and the alcohol on the right. Select the appropriate reaction conditions from the drop-down menus.
Homework Answers
The chemical reaction in which alcohol or ketone reacts with excess alcohol in the presence of acid undergoes the formation of product called acetal. It is an important functional group as it present in sugar.
Steps for the formation of acetal:
The carbonyl oxygen of ketone or aldehyde undergoes Protonation with the help of acid. Then it undergoes Nucleophilic attack by alcohol. Therefore, Hemiacetal is formed by the deprotonation. Again it undergoes Protonation to form protonated alcohol and cleaves in the form of water molecule. The alcohol undergoes Nucleophilic attack on carbonyl carbon and finally it undergoes deprotonation to form acetal as product.
Mechanism of acetal:
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Propose syntheses of each of the following acetals from carbonyl
compounds and alcohols. Draw the structure...
Propose syntheses of each of the following acetals from carbonyl compounds and alcohols. Draw the structure...
Propose syntheses of each of the following acetals from carbonyl compounds and alcohols. Draw the structure of the carbonyl compound on the left and the alcohol on the right. Select the appropriate reaction conditions from the drop-down menus.
Enol Forms of Carbonyl Compounds Draw structural formulas for all of the enol forms of the...
Enol Forms of Carbonyl Compounds
Draw structural formulas for all of the enol forms of the
carbonyl compound below.
Draw structural formulas for all of the enol forms of the carbonyl compound belon OCH3 You do not have to consider stereochemistry. .Consider stereoisomeric enols as a single enol form. In the case of dicarbonyl compounds, do not include stuctures in which both carbonyl groups are present as enols. Draw one structure per sketcher. Add additional sketchers using the drop-down menu...
Draw structural formulas for all of the enol forms of the carbonyl compound below. • You...
Draw structural formulas for all of the enol forms of the carbonyl compound below. • You do not have to consider stereochemistry. • Consider stereoisomeric enols as a single enol form. . In the case of dicarbonyl compounds, do not include stuctures in which both carbonyl groups are present as enols. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner . Separate structures with + signs from the drop-down menu -O0O-...
One of the most important uses for Grignard reagents is their addition to carbonyl compounds to...
One of the most important uses for Grignard reagents is their addition to carbonyl compounds to give new carbon-carbon bonds. In this reaction, the carbon of the organometallic compound acts as a nucleophile to add to the positive carbon of the carbonyl forming an alkoxide ion intermediate. Aqueous acid is used in the second step to protonate the alkoxide ion and form the product alcohol. Draw the structure of the product(s) of step 1 when the following compound reacts with...
I need help with to solve this! 1. List the following carbonyl compounds in order of...
I need help with to solve this!
1. List the following carbonyl compounds in order of decreasing reactivity toward nucleophilic attack. CH CH3CH2CHCCCH2CH3 CH3CH2 CHCCH2CH3 CH3CH 2CH CH, CH CH CH3CH2CCH2CH3 CH3CH2CHCCHCH2CH3 CH CHCH CCH CH CH3 CH CH3 2. Each of the 30 alcohols below can be synthesized three different ways starting with a carbonyl compound and a Grignard reagent. Provide those syntheses for each alcohol shown. OH OH CH.
12) Starting with hex-3-en-2-one, propose syntheses for the following compound the following (8 pts total): propose...
12) Starting with hex-3-en-2-one, propose syntheses for the following compound the following (8 pts total): propose syntheses for the following compounds. For each synthesis, indicate op that needs to be done to add functional groun (ex: reduction: dehydration: Grignard, etc.) - include reagents required for the transformation (ex: NaBH, for carbonyl reduction, etc.) OH MY OH *Hint: refer to g. 11
b. Page 4 (Question 4 continued) Propose reasonable syntheses for the following indicated compounds and using...
b. Page 4 (Question 4 continued) Propose reasonable syntheses for the following indicated compounds and using any other necessary orga Show all intermediates formed to receive full credit ÇO2H I NO₂ for the following compounds beginning with the ng any other necessary organic or inorganic reagents. CHE SO3H OCH2CH3 [3% +6% marks] c. Outline the synthesis of the following compound using either the aceu meester synthesis method. Draw the structure of the starting material and show all intermediates, reagents and...
Propose syntheses of each of the following compounds, from the given starting material and any other...
Propose syntheses of each of the following compounds, from the given starting material and any other needed reagents. » O- CH2OH from O con b) CH3CCHz from CH3CH=CH2 ОН • OCHGHs from O-Br
3. Propose reasonable syntheses of each of the following compounds from the given starting materials. You...
3. Propose reasonable syntheses of each of the following compounds from the given starting materials. You may use any other readily available alkyl halides, solvents and reagents as necessary. More than one step is necessary. Show all intermediates, reactions, reagents and conditions clearly. It is not necessary to show the mechanism. HCECH HCECH , X HCECH HC=CH M H OHC (30 marks)
The first two pictures go together; draw the 2 starting compounds. Last picture draw the next...
The first two pictures go together; draw the 2 starting
compounds. Last picture draw the next intermediate & show
electron flow.
Using the template below, draw the 2 starting compounds (a carbonyl and an amine) for the preparation of the following structures Note: add a plus sign between 2 starting compounds, and draw them to the left side of the reaction arrow. DOCXO, ⓇO OZ + LE IZ L НО" Note: add a plus sign between 2 starting compounds, and...
Propose syntheses of each of the following acetals from carbonyl compounds and alcohols. Draw the structure of the carbonyl compound on the left and the alcohol on the right. Select the appropriate reaction conditions from the drop-down menus.
Enol Forms of Carbonyl Compounds
Draw structural formulas for all of the enol forms of the
carbonyl compound below.
Draw structural formulas for all of the enol forms of the carbonyl compound belon OCH3 You do not have to consider stereochemistry. .Consider stereoisomeric enols as a single enol form. In the case of dicarbonyl compounds, do not include stuctures in which both carbonyl groups are present as enols. Draw one structure per sketcher. Add additional sketchers using the drop-down menu...
Draw structural formulas for all of the enol forms of the carbonyl compound below. • You do not have to consider stereochemistry. • Consider stereoisomeric enols as a single enol form. . In the case of dicarbonyl compounds, do not include stuctures in which both carbonyl groups are present as enols. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner . Separate structures with + signs from the drop-down menu -O0O-...
One of the most important uses for Grignard reagents is their addition to carbonyl compounds to give new carbon-carbon bonds. In this reaction, the carbon of the organometallic compound acts as a nucleophile to add to the positive carbon of the carbonyl forming an alkoxide ion intermediate. Aqueous acid is used in the second step to protonate the alkoxide ion and form the product alcohol. Draw the structure of the product(s) of step 1 when the following compound reacts with...
I need help with to solve this!
1. List the following carbonyl compounds in order of decreasing reactivity toward nucleophilic attack. CH CH3CH2CHCCCH2CH3 CH3CH2 CHCCH2CH3 CH3CH 2CH CH, CH CH CH3CH2CCH2CH3 CH3CH2CHCCHCH2CH3 CH CHCH CCH CH CH3 CH CH3 2. Each of the 30 alcohols below can be synthesized three different ways starting with a carbonyl compound and a Grignard reagent. Provide those syntheses for each alcohol shown. OH OH CH.
12) Starting with hex-3-en-2-one, propose syntheses for the following compound the following (8 pts total): propose syntheses for the following compounds. For each synthesis, indicate op that needs to be done to add functional groun (ex: reduction: dehydration: Grignard, etc.) - include reagents required for the transformation (ex: NaBH, for carbonyl reduction, etc.) OH MY OH *Hint: refer to g. 11
b. Page 4 (Question 4 continued) Propose reasonable syntheses for the following indicated compounds and using any other necessary orga Show all intermediates formed to receive full credit ÇO2H I NO₂ for the following compounds beginning with the ng any other necessary organic or inorganic reagents. CHE SO3H OCH2CH3 [3% +6% marks] c. Outline the synthesis of the following compound using either the aceu meester synthesis method. Draw the structure of the starting material and show all intermediates, reagents and...
Propose syntheses of each of the following compounds, from the given starting material and any other needed reagents. » O- CH2OH from O con b) CH3CCHz from CH3CH=CH2 ОН • OCHGHs from O-Br
3. Propose reasonable syntheses of each of the following compounds from the given starting materials. You may use any other readily available alkyl halides, solvents and reagents as necessary. More than one step is necessary. Show all intermediates, reactions, reagents and conditions clearly. It is not necessary to show the mechanism. HCECH HCECH , X HCECH HC=CH M H OHC (30 marks)
The first two pictures go together; draw the 2 starting
compounds. Last picture draw the next intermediate & show
electron flow.
Using the template below, draw the 2 starting compounds (a carbonyl and an amine) for the preparation of the following structures Note: add a plus sign between 2 starting compounds, and draw them to the left side of the reaction arrow. DOCXO, ⓇO OZ + LE IZ L НО" Note: add a plus sign between 2 starting compounds, and...
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