several steps NaOEt (2 equiv) но- OEt Bг Br он он illudin-S

Q: Denote how many nucleophilic centers are present in the following nolecular structure (in case of…

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Q: One step in the synthesis of sitaglipitin (Problem 17.14, a drug used to treat type 2 diabetes)…

A:

Q: Draw the products formed when A and B are treated with each of the following reagents: (a) Br2,…

A: (a) .Br2, FeBr3:

Q: Give the mechanisim? Ho

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: Treatment of α,β-unsaturated carbonyl compound X with base forms the diastereomer Y. Write a…

A: In this reaction, racemization of the methyl group linked to γ H is taking place. Racemization is a…

Q: Biyouyanagin A is an anti-HIV agent isolated from the leaves of a plant of the genus Hypericum that…

A: SOLUTION: Step 1: Biyouyanagin A is an anti-HIV agent isolated from the leaves of Hypericum chinense…

Q: During the metabolism of glucose, glyceraldehyde 3-phosphate is converted to dihydroxyacetone…

A: Keto –enol tautomerizations means the chemical equilibrium between enol form and keto form. Keto…

Q: Fluticasone is a glucocorticoid drug that has been used to treat asthma. In the synthesis of…

A: SOLUTION: Step 1:  The structure of the Fluticasone has the chlorine atom which is the best leaving…

Q: Br CH,CO,H +Br, CH,CO,H CH3 `CH,CO,H CH3 A bromolactone

A:

Q: What product is formed when D-Altrose is treated with C6H5CH2NH2, mild H+

A: An imine is formed when an aldehyde or ketone reacts with a primary amine. The reaction is catalyzed…

Q: (a) Label the acetal in salicin, a naturally occurring pain reliever isolated from the bark of the…

A: The structure of Salicin is given below :

Q: Aziridines are heterocycles that contain an N atom in a three-membered ring. Like epoxides,…

A: Oseltamivir total synthesis concerns the total synthesis of the antiinfluenza drug oseltamivir…

Q: What enolate is formed when each ketone is treated with LDA in THF solution? What enolate is formed…

A: When a ketone is treated with LDA in presence of THF solution to form an enolate ion. The strong…

Q: Brasilenyne is isolated from the digestive gland of the sea hare; it shows significant antifeedant…

A: Alcohols is poor leaving groups to make it good leaving groups treated with SOCl2 to form the alkyl…

Q: Draw a stepwise mechanism for the reaction of an alcohol with an isocyanate to form a urethane.

A: The given alcohol is : methanol CH3OH Isocyanate is: The carbon of the isocyanate group has…

Q: Describe the reaction steps for the mechaniswhere benzil is prepared by the oxidation of an…

A: Benzoin can be prepared by using Benzoin condensation reaction.In this reaction benzaldehyde is…

Q: Draw a stepwise mechanism for the following reaction, which was used in the synthesis of ezetimibe…

A: Initially proton abstraction from alpha carbon to carbonyl group by LDA takes place. Formed anion…

Q: Draw the products formed when A and B are treated with each of the following reagents: (a) Br2,…

A: (a) Br2, FeBr3

Q: During the metabolism of glucose, glyceraldehyde 3-phosphate is converted to dihydroxyacetone…

A: Keto –enol tautomerizations means the chemical equilibrium between enol form and keto form. Keto…

Q: Acid-catalyzed dehydration of β-hydroxy carbonyl compounds occurs by the mechanism discussed in…

A:

Q: Draw a stepwise mechanism for the following reaction, one step in the synthesis of the…

A: Protonation of oxygen atom takes place in the presence of acid H3O+ Hydrogen atom migrates to…

Q: During the metabolism of glucose, glyceraldehyde 3-phosphate is converted to dihydroxyacetone…

A: Please find below the stepwise mechanism for this reaction in the presence of acid

Q: Treatment of α,β-unsaturated carbonyl compound X with base forms the diastereomer Y. Write a…

A: In the reaction, racemization of a methyl group linked to gamma -carbon atom takes place. For…

Q: What product is formed when attached compound is treated with either Ag2O, NH4OH or Na2Cr2O7, H2SO4,…

A:

Q: What product is formed when attached compound is treated with either Ag2O, NH4OH or Na2Cr2O7, H2SO4,…

A: Introduction:  Tollens reagent is Ag2O, NH4OH. It oxidizes aldehyde to carboxylic acid only. Jones…

Q: Psilocybin is a hallucinogenic compound found in some mushrooms. Present a straightforward pathway…

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Q: Treatment of α,β-unsaturated carbonyl compound X with base forms the diastereomer Y. Write a…

A: The provided reaction is shown as follows:

Reactions at the Alpha Carbon Atom

The position next to the ketone or aldehyde functional group is termed as alpha position and the reaction which occurs at alpha position is called alpha substitution reaction. In an alpha substitution reaction, the alpha proton atom is substituted by an electrophile by the formation of an enol intermediate or enolate ion intermediate. Most of the carbonyl compounds go through an alpha substitution reaction.