What product is formed from the [5,5] sigmatropic rearrangement of the following unsaturated ether?

Q: Draw the product (including stereochemistry) formed from each pair of reactants in a thermal [4 + 2]…

A: The thermal [4+2] cycloaddition reaction of the given reactants is shown below.

Q: Draw the major organic product of the reaction conditions. Show stereochemistry in your structure.…

A: Major organic product of the given reaction = ?

Q: Draw a stepwise mechanism for the following reaction that illustrates how two substitution products…

A: Stepwise mechanism: The structure of 1-bromohex-2-ene shows that it contains bromine atom at first…

Q: Which of the following are a major product of the reaction sequence shown below? (1) Br2, FeBry (2)…

A: Organic chemistry.

Q: Which reaction intermediate is formed when 4methylcyclohexene reacts with Bro dissolved in CCI4 Br…

A:

Q: What product is formed by the [3,3] sigmatropic rearrangement of each compound?

A:

Q: Draw a stepwise mechanism for the following reaction that illustrates how two substitution products…

A:

Q: What product is formed when each compound undergoes thermal electrocyclic ring opening or ring…

A: These reactions are pericylic reactions. When molecule possess (4n+2)π electrons then its thermal…

Q: Which of the following reaction conditions results in Markovnikov addition to an unsymmetric alkene?…

A:

Q: 5. Predict the structure of the product formed (with correct stereochemistry) for each of following…

A: Since you have asked multiple questions, we will solve the only first question for you. If you want…

Q: Explain why the following bromoketone forms different bicyclic compounds under different reaction…

A: Given reaction,

Q: Which isomer reacts more rapidly in an E2 reaction: cis-1-bromo-4-tert-butylcyclohexane or…

A: An E2 reaction is a concerted, one-step reaction in which the proton and the halide ion are removed…

Q: b) Which of these dienophiles gives the FASTEST reaction with cyclopentadiene? CH2 CH2 A. В. C. ||…

A: Applying concept of kinetics of Diels-alder reaction with respect to functional groups attached to…

Q: What product is formed when each compound undergoes thermal electrocyclic ring opening or ring…

A: The reversible reaction in which ring opening and ring closing occur from one reactant to product is…

Q: Draw the product (including stereochemistry) formed from each pair of reactants in a thermal [4 + 2]…

A: The given compound, shown by 1, can be redrawn as shown in 2 an then this compound undergoes [4+2]…

Q: What alkenes are formed from each alkyl halide by an E1 reaction? Use the Zaitsev rule to predict…

A: Zaitsev rule: During elimination greater substituted alkene is predominantly formed.

Q: What type of sigmatropic rearrangement is illustrated in each reaction?

A: (a) The pi bond is rearranged and the σ bond is broken in this sigmatropic rearrangement. This…

Q: 2) Which product would be formed in an appreciable amount when trans-1-bromo-2-methylcycloh…

A:

Q: Which of the following structures would be considered an enol tautomer of cyclopentanone он OH A…

A: • Tautomers ⇒→ Tautomens are the structunal isomer which         are in enconvent readily.→ In…

Q: The molecule, 2-bromo-1,3-diethyl-1,4-dimethylcyclohexane undergoes an SN1/E1 reaction in the…

A: i. In the first step the leaving group Br departs to give carbocation.  ii. Due to migration of most…

Q: What is the major product(s) for the following three-step reaction sequence. I and its enantiomer…

A: Given : We have to make products for the following given reaction.

Q: (а) -C- -ОН (b) -0-CH3 (c) -CI (d) C-CH3 (е) -NH3

A: Answer:- This question is answered by using the simple concept of effect of substituent on the…

Q: What is the major organic product of the following Claisen rearrangement? IV А) I B) II С) I D) IV

A: The Claisen rearrangement is a pericyclic reaction. In this rearrangement, 3,3-sigmatropic…

Q: What is a favored enol tautomer of 6-methyl-2,4-hexanedione? OH ОН О OH ОН О

A:

Q: Which isomer reacts more rapidly in an E2 reaction: cis-1-bromo-4-tert-butylcyclohexane or trans-1-…

A: E2 elimination reaction : It is a type of elimination reaction that is mostly observed in the case…

Q: (2R,3S)-2-Bromo-3-phenylbutane undergoes an E2 elimination when treated with sodium methoxide. Draw…

A:

Q: What is a favored enol tautomer of 6-methyl-2,4-hexanedione? OH O OH OH O

A: TAUTOMERISM Tautomers are formed by rapid exchange of atoms or groups by structural or…

Q: Which of the following alkyl halide undergo rearrangement in S reaction ? CH 3 | C - CH, CH3 (b) (a)…

A:

Q: Draw the major product formed when HBr reacts with the following epoxide. Use wedge/dash bonds,…

A: The major product formed when HBr reacts with the given epoxide can be drawn as follows,

Q: A. The Cycloheptatrienyl cation is very unstable although it has seven resonance structures, however…

A: Conditions that a compound must satisfy for being aromatic are: Must be cyclic and planar Must have…

Q: Identify the needed reagents in the following scheme: CH3 Br он CH3 CH3 CH3 CH3 С. b. а.

A:

Q: What is the correct classification of the following reaction? A) cycloaddition reaction C)…

A: Electro cyclic reaction is the type of pericyclic reaction where the net result is one pi bond…

Q: 3. Explain the stereochemistry of the product by drawing the orbitals in the following electrocyclic…

A: Bb

Q: What reagents are necessary to carry out the conversion shown? CN

A: Nitriles react with a Grignard reagent to form ketones. In this reaction the intermediate is stable…

Q: Which of the possible stereoisomers are formed by oxidation of (S )-4-methylcyclohexene with osmium…

A: Alkene (A) undergoes oxidation using osmium tetra oxide gives cyclic osmate intermediate, this…

Q: What product is obtained from the reaction of HCl with 1-butene? With 2-butene? a. Which of the two…

A: Both 1-butene and 2-butene react with HCl to form 2-chlorobutane. Both the reactions involve the…

Q: What product is formed by [3,3] sigmatropic rearrangement of the following compound? Clearly…

A: The product formed by [3,3] sigmatropic rearrangement of the following compound is shown below -

Q: A. Give the most stable enol form: 1. 2. C. Give the starting material/s that would provide the a,ß-…

A: We have given two ketone molecule and we have to give the most stable enol form and give the…

Q: CH2 CH; e. CH,=CHCCH; с. a. CH;CHCH=CH2 ČH3 ČH3 CH3 CH3 d. f. b. CH3CHCH2CH=CH2 CH3 What is the…

A: When alkene compound is treated with HBr then Markovnikov's addition reaction takes place via…

Q: Which alkyl halide do you expect to react more slowly in aqueous solution? Explain. a) (CH3)sC-F b)…

A: The given reaction will proceed by removal of leaving group which is halide, and formation of…

Q: a) What product is formed from the [1,7] sigmatropic rearrangement of a deuterium in the following…

A: (a) The reactant in the equation undergoes [1, 7] sigmatropic rearrangement of a deuterium to…

Q: What is the major product of the following reaction? WHY? NaOCH3 LOH -OH A) The seven-membered ring…

A: Intramolecular aldol condensation occurs when the two carbonyl groups in the same reactant molecule…

Q: A a. Draw the structure of both products B and C of these following transformations. ( 1) O3,…

A:

Q: How can be a vinylic halide converted into Grignard reagent? a) Addition of base b) Addition of…

A: Hii there, since there are multiple questions posted. We are answering first question. If you need…

Q: Which reaction provides the best synthesis of 2-methyl-I-butene? (C,Hs);P=CH2 (A) CH3-CH2-C-CH3-…

A:

Q: What alkyl chloride affords the following alkene exclusively under E2 reaction conditions?

A: E2 elimination is a converted reaction .A strong base abstracts the β-proton that is anti or trans…

Q: What product is created when 3-chloro-2-methylcyclohex-1-ene is reacted with a strong base?

A: See product in red box.

Q: Draw the product (including stereochemistry) formed from each pair of reactants in a thermal [4 + 2]…

A: Diels–Alder reaction can be described as a chemical reaction between the substituted alkene…

Q: What alkene is required to synthesize each of the following compounds? b. What other epoxide is…

A: Epoxidation is a syn addition. Addition to a cis isomer will result in a cis product and addition to…

Q: Which of the shown reagents is needed to accomplish the shown reaction ? OCH3 NaOCH3 ??? DMF ´CH3 CI…

A: Nucleophilic substitution biomolecular reaction (SN2):The bimolecular nucleophilic substitution…

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.