Show that the [4 + 4] cycloaddition of two butadiene molecules to give cycloocta1,5-diene is thermally forbidden but photochemically allowed

Q: What is the thermodynamic product obtained from the addition of 1 equivalent of HBr to…

A: Given reactant is 1,3-butadiene.

Q: 1R,2S-dibromocyclododecane from acetylene and anything with 10 carbons or less. To do this problem,…

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Q: Q.3 Discuss the rearrangement of 1,5-diene via examples. Identify the products of photolysis of…

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Q: Consider the structure (6R,7S)-6,7-dimethyl-1,2,3,4,6,7-hexahydronaphthalene of…

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Q: what product would you expect from photochemical cyclization of (2E,4z,6z)-2,4,6-octatriene with…

A: see below

Q: Vhich represent HOMO of 1,3-butadiene under photochemical condition? A. В. 88 8: C. D. 8.

A: 1,3 butadiene have four molecular orbital.   Two bonding orbital and two anti bonding molecular…

Q: Show the product of the Diels–Alder dimerization of cyclobutadiene. (This reaction issimilar to the…

A: The mechanism of Diels-Alder dimerization of cyclobutadiene is as follows:

Q: Please show the reaction mechanisms of the [3 + 2] cycloadditions of (A) Ozone and (B) OsO4 to…

A: [3 + 2] Cycloaddition is a type of pericyclic reaction in which 1,3-dipolar compounds add to the…

Q: Predict the products for the hydrohalogenation reaction of 1-methyl-1,3-cyclohexadiene with 1…

A: The structure of 1-methyl-1,3-cyclohexadiene is as follows: The compound contains two conjugated…

Q: Each carbocation is capable of rearranging to a more stable carbocation. Limiting yourself to a…

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Q: 9. The free radical bromination of cis-1,2,3-trimethylcyclopropane yields equal amounts of (S)-…

A: The free radical bromination is the bromination done under UV light (photochemical) where free…

Q: CH3 -CH3 CH3

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Q: Write the structures of Kand L, show exactly what happens in each reaction. Cycloocta triene…

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Q: the Draw an orbital correlation diagram for the suprafacial-suprafacial reaction of an allyl species…

A: The interaction of an allyl radical or anion with an olefin at the suprafacial level is thermally…

Q: Carbons 1 and 4 of 1,3-cyclopentadiene are equivalent and give the same carbocation on protonation.…

A: The structure of 1,3-cyclopentadiene is as follows:

Q: OTs 2-bromopentane

A: The tosylate group is a very good leaving group and it gives nucleophilic substitution reaction…

Q: Show that [4+4] cycloaddition of two butadiene molecules to give cycloocta-1,5-diene is thermally…

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Q: What product would you expect to obtain from addition of Br2 to 1,2-dimethyl- cyclohexene? Show the…

A: What product would you expect to obtain from addition of Br2 to 1,2-dimethyl cyclohexene? Show the…

Q: [ 10] Which of following statement is correct ? (a) the [ 4+2] Diels Alder reaction is…

A: Which statement is correct = To be determined

Q: 7. Compound (2E4Z,6Z,8E)-2,4,6,8-decatetraene has been cyclized to give 7,8-dimethyl- 1,3,…

A: Given is ring closure reaction.

Q: Free-radical chlorination of hexane gives very poor yields of 1-chlorohexane, while cyclohexane can…

A: Halogenation is a chemical reaction in which the halogen (for example, chlorine) is added into an…

Q: The thermal cyclisation of trans, trans-2,4-hexadiene produces both trans-3,4-dimethylcyclobutene…

A: Trans, trans -2,4-hexadiene having two double bonds. Therefore it is a 4 pi electron system. Con…

Q: When 2-2-dimethylbutane undergoes free radical chlorination, four monohalogenated products are…

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Q: The high relative rate of addition of HBr to 11,2 -pentadiene; II: 1,3-pentadiene and IlI:…

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Q: 7. Although the Diels-Alder reaction generally occurs between an electron-rich diene and an…

A: Products are drawn below-

Q: In an electrophilic addition reaction, conjugated dienes give more than one expected product. Show…

A: -> Reaction between 1,3-butadiene and HBr.

Q: There is a different, thermally allowed cycloaddition of two butadiene molecules. Showthis reaction,…

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Q: Identify the diene and dienophile that will yield the given product in a Diels-Alder reaction, and…

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Q: Buta-1,3-diene reacts with Br2 to yield a mixture of 1,2- and 1,4-addition products. Show the…

A: Buta-1,3-diene reacts with Br2 to yield a mixture of 1,2- and 1,4-addition products. Show the…

Q: Why does a [2+2] cycloaddition reaction require a thermal condition to be met for initiation?

A: The reason is as follows:

Q: The Diels-Alder reaction is not limited to making six-membered rings with only carbon atoms. Predict…

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Q: Pent-1,3-diene and HBr will yield O 3-bromo-pent-1-ene O 2-bromo-pent-2,4-diene 1-bromo-pent-2-ene…

A: Pent-1,3-diene and HBr will yield:   This is electrophilic addition reaction.

Q: 1. determine the type of pericyclic reaction (sigmatropic, electrocyclic, cycloaddition) 2. draw the…

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Q: Write the propagation steps for the addition of HBr to 1-methylcyclohexene in the presence of a…

A: Radical chain reactions has three parts: initiation, propagation, and termination. The propagation…

Q: Following are   example  of Cope rearrangements of 1,5-dienes. Show that   product can be formed in…

A: The Cope Rearrangement can be defined as the rearrangement in which old bonds are broke and new…

Q: Free-radical chlorination of hexane gives very poor yields of 1-chlorohexane, while cyclohexane can…

A: From the free radical chlorination reaction of hexane, it is clear that only 1 part of hexane is…

Q: A chemist wanted to determine experimentally the relative ease of removing a hydrogen atom from a…

A: The first compound can be formed from the substitution of any one of six different hydrogen atoms.…

Q: (2E,4Z,6Z,8E)-decatetraene has been cyclized to give 7,8-dimethy-1,3,5-cyclooctatriene. Predict the…

A: The reaction involves the cyclization of a tetraene. Since, the number of electron pair involved is…

Q: Suggest a way to prepare 1,3-cyclohexadiene from cyclohexane

A: Given,

Q: c. Give structures for the major Diels-Alder product of the following reactions: 1,3- cyclohexadiene…

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Q: FC. cO,Me

A:

Q: The compound below is treated with chlorine in the presence of light. H3C, CH3 H3C `CH3 Draw the…

A: Answer goven as follows

Q: For the free radical bromination of 2-methylbutane show all of the mono-bromination isomers and…

A: The free radical bromination of an alkane is more selective than the free radical chlorination of an…

Q: The bicyclic alkene P can be prepared by thermal electrocyclic ringclosure from cyclodecadiene Q or…

A: A bicyclic molecule (bi = two, cycle = ring) is a molecule that has two rings bound to it. Bicyclic…

Q: How to draw the molecular orbital diagram for pent-1,4-diene with a carbocation at the third carbon…

A: Applying formation of molecular orbital of organic molecules on basis of pericyclic chemistry.…

Q: 2. Addition of HBr to 2-methyl-1- butene gives two products, they are: .. and . ..

A: An addition reaction is a reaction in which the two reactants combine to from a product having all…