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6. Using either malonic ester synthesis or acetoacetic ester synthesis, outline a reaction scheme in each...
The Malonic Acid synthesis is similar to the Acetoacetic Ester synthesis It uses diethyl malonate as...
The Malonic Acid synthesis is similar to the Acetoacetic Ester synthesis It uses diethyl malonate as the main starting material Draw the structure of diethyl malonate (malonic ester) Diethyl malonate can be hydrolyzed back to malonic acid and if heat is applied after the hydrolysis, will decarboxylate. Draw the mechanism for this transformation starting with malonic acid. Indicate the new C-C bonds in each molecule and then provide the organohalides which were used to synthesize each compound using the malonic...
Prepare any THREE of the following molecules, incorporating either an acetoacetic ester synthesis or a malonic...
Prepare any THREE of the following molecules, incorporating either an acetoacetic ester synthesis or a malonic ester synthesis in each synthesis. Show the reagents for each step and the product of each step. Do not draw any mechanisms. CO2Me H2N A B C D
Prepare any THREE of the following molecules, incorporating either an acetoacetic ester synthesis or a malonic...
Prepare any THREE of the following molecules, incorporating either an acetoacetic ester synthesis or a malonic ester synthesis in each synthesis. Show the reagents for each step and the product of each step. Do not draw any mechanisms. CO2Me H2N A B C D
Design a synthesis(no mechanism) for (Hint: use either a malonic ester or acetoacetic ester synthesis) Show...
Design a synthesis(no mechanism) for (Hint: use either a malonic ester or acetoacetic ester synthesis)
Outline all steps in a synthesis of the following compound using the malonic ester synthesis method:...
Outline all steps in a synthesis of the following compound using the malonic ester synthesis method: CH_3 (CH_2)_2 CH_2 - CO_2 H.
5 Fage 5 Which of the following dienes react faster in a Diels-Al explanation. in a Diels-Alder reaction? Give a BRI...
5 Fage 5 Which of the following dienes react faster in a Diels-Al explanation. in a Diels-Alder reaction? Give a BRIEF [3 marks) b. A number of highly conjugated organic compounds have the more widely used is 4-methylbenzylidene cam shown below. Suggest a simple synthesis of this compound condensation. Clearly indicate the starting materials and unds have found use as sunscreens. One of benzylidene camphor (4-MBC), whose structure this compound using a crossed aldol materials and reagents and conditions. Hz...
6. Outline a stepwise reaction scheme to show how you would synthesize each of the compounds...
6. Outline a stepwise reaction scheme to show how you would synthesize each of the compounds (A and B) below starting with ethene as starting material. [Show structure of intermediates and use appropriate reagent(s) in each stepl a. 1,1-Dibromoethane 84 b. 2-Bromotetradecane
28- The following molecules can be formed by either: Michael Reaction; Enamine Acylation; Acetoacetic Ester Synthesis;...
28- The following molecules can be formed by either: Michael Reaction; Enamine Acylation; Acetoacetic Ester Synthesis; Michael Addition; Malonic Ester Synthesis; Robinson Annulation; Aldol Condensation; Claisen Condensation; Intramolecular Aldol Condensation; Dieckmann Condensation or a Combination of two of the above listed reaction. In each case write the proper of the reaction on the line and dissect the product into appropriate starting material. In some cases there might only be one starting material. You may use any one of the above...
Diethyl malonate can be prepared by the following reaction sequence. Draw the structures of each of...
Diethyl malonate can be prepared by the following reaction sequence. Draw the structures of each of the missing intermediates in the boxes provided. 4. |сH,сH он. 1. Bry PBr3 OH 2. H2O не На NaCN HSO NC CH CH-OH осH сH, CH2 HQ, heat CH2 HCl OEt Et0 How would you prepare each of the following compounds using either an acetoacetic ester synthesis or a malonic ester synthesis? Show all intermediate structures and all reagents 5. COOH
owing compounds are "potential' targets for either the malonic ester or the aceto acetic ester synthesis?...
owing compounds are "potential' targets for either the malonic ester or the aceto acetic ester synthesis? Circle them. For each of these, draw the structure(s) of the alkylating agents and structure(s) of the alkylating agents and indicate if the compound could be made efficiently by this method. OH
The Malonic Acid synthesis is similar to the Acetoacetic Ester synthesis It uses diethyl malonate as the main starting material Draw the structure of diethyl malonate (malonic ester) Diethyl malonate can be hydrolyzed back to malonic acid and if heat is applied after the hydrolysis, will decarboxylate. Draw the mechanism for this transformation starting with malonic acid. Indicate the new C-C bonds in each molecule and then provide the organohalides which were used to synthesize each compound using the malonic...
Prepare any THREE of the following molecules, incorporating either an acetoacetic ester synthesis or a malonic ester synthesis in each synthesis. Show the reagents for each step and the product of each step. Do not draw any mechanisms. CO2Me H2N A B C D
Prepare any THREE of the following molecules, incorporating either an acetoacetic ester synthesis or a malonic ester synthesis in each synthesis. Show the reagents for each step and the product of each step. Do not draw any mechanisms. CO2Me H2N A B C D
Design a synthesis(no mechanism) for (Hint: use either a malonic ester or acetoacetic ester synthesis)
Outline all steps in a synthesis of the following compound using the malonic ester synthesis method: CH_3 (CH_2)_2 CH_2 - CO_2 H.
5 Fage 5 Which of the following dienes react faster in a Diels-Al explanation. in a Diels-Alder reaction? Give a BRIEF [3 marks) b. A number of highly conjugated organic compounds have the more widely used is 4-methylbenzylidene cam shown below. Suggest a simple synthesis of this compound condensation. Clearly indicate the starting materials and unds have found use as sunscreens. One of benzylidene camphor (4-MBC), whose structure this compound using a crossed aldol materials and reagents and conditions. Hz...
6. Outline a stepwise reaction scheme to show how you would synthesize each of the compounds (A and B) below starting with ethene as starting material. [Show structure of intermediates and use appropriate reagent(s) in each stepl a. 1,1-Dibromoethane 84 b. 2-Bromotetradecane
28- The following molecules can be formed by either: Michael Reaction; Enamine Acylation; Acetoacetic Ester Synthesis; Michael Addition; Malonic Ester Synthesis; Robinson Annulation; Aldol Condensation; Claisen Condensation; Intramolecular Aldol Condensation; Dieckmann Condensation or a Combination of two of the above listed reaction. In each case write the proper of the reaction on the line and dissect the product into appropriate starting material. In some cases there might only be one starting material. You may use any one of the above...
Diethyl malonate can be prepared by the following reaction sequence. Draw the structures of each of the missing intermediates in the boxes provided. 4. |сH,сH он. 1. Bry PBr3 OH 2. H2O не На NaCN HSO NC CH CH-OH осH сH, CH2 HQ, heat CH2 HCl OEt Et0 How would you prepare each of the following compounds using either an acetoacetic ester synthesis or a malonic ester synthesis? Show all intermediate structures and all reagents 5. COOH
owing compounds are "potential' targets for either the malonic ester or the aceto acetic ester synthesis? Circle them. For each of these, draw the structure(s) of the alkylating agents and structure(s) of the alkylating agents and indicate if the compound could be made efficiently by this method. OH
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