What two carbonyl compounds are needed to synthesize the following compound using a Robinson annulation

Q: Explain why ketone K undergoes aldol reactions but ketone J does not.

A: Given molecules:

Q: Draw the major organic product of this E1 elimination reaction. Ignore byproducts. 0.01 M NaOH heat…

A:

Q: What starting materials are needed to synthesize each compound using an aldol or similar reaction?

A: The reactant of a product can be determined by the retrosynthetic method. The retrosynthetic method…

Q: Explain the reactivity order of the given de/activating groups: alkyl amide bromine hydroxyl…

A: The groups which increases the density on the benzene ring and hence making it more reactive than…

Q: What two carbonyl compounds are needed to synthesize each of the following compounds, using a…

A: (a)

Q: What two carbonyl compounds are needed to synthesize each of the following compounds using a…

A: A. We can use retrosynthesis analysis for the above compound :

Q: Please state if the substrate below undergoes carbocation rearrangement in an SN1 mechanism

A: Carbocation is a species in which the positive charge is located on the carbon atom. The positive…

Q: Choose the incorrect statements: * a-Aldol is syrupy liquid β-hydroxy aldehyde or β-hydroxy ketone…

A:

Q: CH3NH2 H30* e) j) NaOEt Aldol Condensation

A: Given reactions,

Q: Draw a stepwise mechanism for the following variation of the aldol reaction, often called a nitro…

A: Since the OH- will extract a proton from the alpha position in the molecule. And since only CH3NO2…

Q: Dehydration via an E1cb mechanism Michael Reaction Intramolecular Aldol Reaction В KOH / ELOH / heat…

A: We know, Micheal reaction is basically the nucleuphilic addition reaction which is basically 1-4…

Q: What starting materials are needed to synthesize each compound by a crossed Claisen reaction?

A:

Q: Draw the product of each attached directed aldol reaction.

A: LDA is the hindered base. It abstracts the proton from the least hindered α-C to form enolate ion…

Q: Dehydration via an E1cb mechanism Michael Reaction Intramolecular Aldol Reaction А C KOH / ETOH /…

A:

Q: Show what reagents are necessary to make the following acetal from a ketone.

A: The acetal is a product which formed by reacting ketone with a protecting group in presence of acid…

Q: What carbonyl compound and what phosphonium ylide are needed to synthesize the Attached compound?

A: The reaction of aldehydes or ketones with the phosphonium ylide which results into alkene compounds…

Q: 24. Propose an efficient synthesis for each of the following transformation: Br > (a) OH (b)

A: The conversion is given as,

Q: Draw a stepwise mechanism for the following variation of the aldol reaction, often called a nitro…

A: The given reaction is,

Q: Show how the following products can be synthesized via a Michael reaction.

A: The Michael reaction is also known as Michael addition involves the reaction between a compound that…

Q: Identify the major and minor products for the E2 reaction that occus when each of the following…

A: ⊙ In case of E2-⊙ elimination leaving group and proton       must be anti-periplaman.  ⊙ E2…

Q: Draw the major product formed when the given epoxide reacts with aqueous acid. Select Draw Rings…

A:

Q: What starting materials are needed to synthesize each compound using a Robinson annulation?

A:

Q: What cyclic product is formed from each dihalide using the malonic ester synthesis?

A: By using malonic ester synthesis, substituted carboxylic acids can be synthesised. In this reaction,…

Q: n micxed aldol condensation of acetone with excess benzaldehyde in the presence of NaOH. Draw the…

A: Aldol condensation takes place in those carbonyl compounds that have alpha hydrogen.  In the case of…

Q: Match the reactions with the correct description. Match each item to a choice: Acetoacetic ester…

A:

Q: Draw the products obtained in each of the following reactions, assuming that only one equivalent of…

A: (a). In the first reaction, the HBr adds to the double bond, by forming a carbocation as an…

Q: Draw the possible enolate product(s) formed when the following carbonyl compounds are treated with…

A:

Q: Draw the organic reagent(s) necessary to synthesize the following compound by an aldol condensation.…

A: Aldol condensation reaction: This reaction is based on the acidity of hydrogen of the aldehyde and…

Q: Draw the keto- tautomer for the following enols

A: Tautomers have two form keto form and enol form both keto and enol form are in equilibrium with each…

Q: Which reaction will not give 100% enolate? to EtO OEt LDA NaOEt H. NaOEt EtO LDA

A: In this question, we will Identify the Reaction which doesn't give 100% enolate. How we can solved…

Q: What two carbonyl compounds are needed to synthesize of the following compound, using a Robinson…

A:

Q: Draw the major organic product(s) of the reaction.

A: The given reaction is

Q: NaoH

A: Two carbonyl compounds, out of which one has an α-H atom, when react with each other form β-hydroxy…

Q: Describe how the following compound can be prepared using an aldol addition in the first step of the…

A: Acetaldehyde is reacted with a strong base, LDA to form resonance-stabilized enolate ion.

Q: Draw the reactant of the following intramolecular Claisen condensation

A: For intermolecular claisen condensation , reactant is ester.  The product is alpha bita keto ester.

Q: What two carbonyl compounds are needed to synthesize the following compound via a Robinson…

A:

Q: need a pushing mechanism for 3,4 dimethoxy-benzaldehyde and 1-indanone in the presence of NaOH. This…

A: First base abstract acidic H+ and nucleophile Attack on benzaldehyde then addition of water gives…

Q: What carbonyl compound and what phosphonium ylide are needed to synthesize the Attached compound?

A: In Wittig reaction an aldehyde or a ketone is reacts with a Wittig Reagent (a triphenyl phosphonium…

Q: Please assist in giving the mechanism of a Claisen Schmidt aldol reaction with 2-methylcyclohexanone…

A:

Q: Complete the following synthesis with the missing reagent(s) or major product(s). OH MCPBA OH CN…

A: Here we have to write the reactant, reagent and products-

Q: What starting materials are needed to synthesize each compound using an aldol or similar reaction?

A: Starting materials are needed to synthesize of given compound using an aldol or similar reaction

Q: Does it matter whether acetone is added first to the eq. NaOH solution then  the benzaldehyde, or if…

A: Aldol condensation is a condensation reaction for an enol or an enolate ion. The final product form…

Q: Aldol Mechanisms: Synthesis of 2-ethyl-hex-2-enal

A:

Q: What carbonyl starting materials are needed to prepare each compound using a directed aldol…

A: For aldol reaction, aldehyde and ketones must have atleast one alpha hydrogen atom when treated with…

Q: 4-methyl,2-pentanol by aldol comdensation with mechanisam

A: Aldol condensation is a base catalyzed condensation reaction in which two molecules of carbonyl…

Q: Which of the following is least likely to undergo a smooth crossed claisen condensation with methyl…

A: The question is based on the concept of organic reactions. we have to identify which of the given…

Q: What reactant can be used to make this compound by an intramolecular aldol reaction? (A) (B) (C) (D)…

A:

Q: Draw the product of treating the following anhydride with CH3OH.

A: The reaction of the given anhydride with methanol will give the product as given below.

Q: enolate 人: base enolate base

A:

Reactions of Ethers

Ethers (R-O-R’) are compounds formed by replacing hydrogen atoms of an alcohol (R-OH compound) or a phenol (C6H5OH) by an aryl/ acyl group (functional group after removing single hydrogen from an aromatic ring). In this section, reaction, preparation and behavior of ethers are discussed in the context of organic chemistry.

Epoxides

Epoxides are a special class of cyclic ethers which are an important functional group in organic chemistry and generate reactive centers due to their unusual high reactivity. Due to their high reactivity, epoxides are considered to be toxic and mutagenic.

Williamson Ether Synthesis

An organic reaction in which an organohalide and a deprotonated alcohol forms ether is known as Williamson ether synthesis. Alexander Williamson developed the Williamson ether synthesis in 1850. The formation of ether in this synthesis is an SN2 reaction.