Given that the change in free energy between axial and equatorial chlorine is 0.52 kcal.mol-1 , what is the difference in energy between the two chair conformations of 1,2,3,5-tetrachlorocyclohexane? What is the percent of the most stable chair conformation in solution at 298K?

Q: We saw that the energy cost of an axial methyl is 1.8 kcal/mol; therefore, we might expect…

A: Conformation of  cyclohexane are 1)Chair conformation  2) Boat confirmation  3) Half chair…

Q: The cyclohexane derivative shown exists primarily in the more stable of the two available chair…

A: See answer below.

Q: Place the conformations of cis-1-isopropyl-4-methylcyclohexane that are drawn below in order of…

A: - Most stable comfomation of cyclohexane is the Chair conformation - it follows following order…

Q: The cyclohexane derivative shown exists primarily in the more stable of the two available chair…

A: Cyclohexane ring has a stable chair conformation.  Each carbon atom of the cyclohexane has two types…

Q: On a cyclohexane ring, an axial carboxyl group has a conformational energy of 5.9 kJ (1.4 kcal)/mol…

A: Given: On a cyclohexane ring, an axial carboxyl group has a conformational energy of 5.9kJ relative…

Q: Calculate the ratio of the diequatorial to diaxial conformation of this disubstituted cyclohexane at…

A: Both the methyl groups are present at the axial positions in this structure: If the methyl groups…

Q: Estimate the relative stabilities of the 4 conformations eclipsed and eclipsed n-pentane by drawing…

A: The most stable conformation is the one in which the two bulky groups lie as far apart from each…

Q: The cyclohexane derivative shown exists primarily in the more stable of the two available chair…

A: The most stable conformation of the chair is given as follows

Q: Arrange the following sets of compounds based on the property given in increasing order. Type in the…

A: The carbocations given are,

Q: The cyclohexane derivative shown exists primarily in the more stable of the two available chair…

A: Chair conformation is most stable of cyclohexane and groups are placed on respective equatorial and…

Q: Cyclohexane derivatives exist primarily in the most stable of the available chair conformations.…

A: Given structure of the molecule is :  a = axial position  e = equatorial position For…

Q: In Part 1 predict the major, organic product for the following reaction sequence without…

A:

Q: 3. Which stereoisomer can obtain the least amount of conformational strain, cis- or trans-1,3-…

A: In the 1,3-disubstitution pattern (whether it is dimethyl or any other 1,3-dibsubstitution), both…

Q: Calculate the difference in Gibbs free energy in kilojoules per mole between the alternative chair…

A: Interpretation: The difference in Gibb's free energy in kilojoules per mole between the alternative…

Q: The measured energy difference between ring-flip conformations of cis-1,3-dimethylcyclohexane is…

A: 1,3-Diaxial interactions are steric interactions between an axial substituent located on carbon atom…

Q: Cyclohexane derivatives exist primarily in the most stable of the available chair conformations.…

A: Explanation - A conformation in which both substituents are equatorial will always be more stable…

Q: 7. Which one of the following conformations of disubstituted cyclohexanes is expected to be the most…

A: Presence of one bulky methyl group at axial position will cause two gauche butane interaction. This…

Q: Consider (1R, 2S, 3S)-1-bromo-2- chloro-3-fluorocyclohexane, shown below. The most stable…

A: Given: (1R, 2S, 3S)-1-bromo-2 chloro-3-fluorocyclohexane Structure:

Q: OTs 2-bromopentane

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

Q: dynamic stereochemistry, list the types of substrates that are considered in the study of…

A:

Q: The cyclohexane derivative shown exists primarily in the more stable of the two available chair…

A: Group a is at axial position. Group b is at equatorial position. Group c is at axial position.

Q: cis-2,5-dimethy-1,3-dioxane The structure of cis-2,5-dimethyl-1,3-dioxane is shown above, without…

A: A stable chair confirmation is the one where the bulky groups are in equatorial position.

Q: As we learned, monosubstituted cyclohexanes exist as anequilibrium mixture of two conformations…

A: Given information,       When R = CH2CH3, Keq for this process is 23.When R = C(CH3)3, Keq for this…

Q: Consider 1-bromopropane, CH3CH2CH2Br. (a) Draw Newman projections for the conformations in which…

A: Newman projection: These are one of the ways to explain stereochemistry of alkanes. The…

Q: The chiral catalyst (R)-BINAP-Ru is used to hydrogenate alkenes to give alkanes . The products are…

A: Given reaction,

Q: The cyclohexane derivative shown exists primarily in the more stable of the two available chair…

A: Chair conformation is most stable and groups are attached on respective equatorial and axial…

Q: How many different stereosomers are there for 2-bromo-3-chloropentane? 3

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: (1) Provide clear drawings of both chair conformations of trans-3(tert- butyl)cyclohexan-1-ol. (6)…

A: (i) Given compound named trans-3-(tert-butyl) cyclohexan-1-ol , have two substituents at cyclohexane…

Q: Jse strain energy increments in the OWL Table Reference (see References button, Strain Energy…

A:

Q: The cyclohexane derivative shown exists primarily in the more stable of the two available chair…

A: All the three groups  are attached to the same face of the cyclohexane ring which means they are cis…

Q: Following are the alternative chair conformations for trans-1,2-dimethylcyclohexane.(a) Estimate the…

A:

Q: (a) Given that 7.28 kJ is the difference in free axial and between energy substituents for methyl in…

A: a) Given: Difference in free energy between axial and equatorial substituents for methyl in…

Q: Below are two conformers of trans-1-tert-butyl-3-methylcyclohexane. As shown in the equilibrium,…

A: Conformational isomers: The conformational isomers are formed by the rotation of a carbon-carbon…

Q: What is the energy difference between the staggered and eclipsed conformations of…

A: A staggered and the eclipsed conformations of alkane are conformational extremes for that molecule.…

Q: Which of the following is the most stable conformation of bromocyclaherane? IV.

A: Cyclohexane is a cyclic hydrocarbon with a six-membered cyclic ring of carbon atoms. The major…

Q: Calculate the difference in Gibbs free energy in kilojoules per mole between the alternative chair…

A: The difference in Gibbs free energy in kilojoules per mole between the alternative chair…

Q: One of the chair conformers of cis-1,3-dimethylcyclohexane is 5.4 kcal/mol less stable than the…

A: solution- steric strain does a 1,3-diaxial interaction between two methyl groups introduce into the…

Q: 23. For the alkenes shown below, consider the symmetry properties of the HOMO and the LUMO and…

A: This reaction is an example of cycloaddition reaction . 2π+2π cycloaddition reaction is…

Q: Why is one stereoisomer of 1,2-dimethylcyclopropane more stable than the other? wwwww

A: The two stereoisomers of 1,2-dimethyl cyclopropane are cis and trans isomers.  In case of cis-isomer…

Q: The cyclohexane derivative shown exists primarily in the more stable of the two available chair…

A: In more stable cyclohexane chair conformation maximum groups are equatorial . Because at equatorial…

Q: given: (i) (iii) (iv) Which one is more stable? Briefly explain your answer. Use a suitable formula…

A: Ans. i) As the left structure has 2kj/mol stearic strain which is less than the right form which has…

Q: On a separate sheet of paper, draw the two alternative chair conformations for the product formed by…

A: The possible reaction products are:

Q: Give a clear explanation handwritten answer..give the stereochemistry with most stable chair…

A:

Q: The G° for conversion of “axial” fluorocyclohexane to “equatorial” fluorocyclohexane at 25 °C is…

A:

Q: When  treated with CrO3, 2-tert-butylcylclohexanol undergoes oxidation reaction to yield…

A:

Q: As we learned, monosubstituted cyclohexanes exist as anequilibrium mixture of two conformations…

A: GIVEN: If R = CH2CH3 ,  Keq for this process = 23 If R = C(CH3)3, Keq for this process = 4000…

Q: a) Calculate the difference in the Gibbs free energy between the second and first conformation…

A:

Q: Given that the free energy of the twist-boat conformer of cyclohexane is 5.3 kcal/mol greater than…

A: The percentage of twist-boat conformers present in a sample of cyclohexane at 25 degree Celsius can…

Alkanes and Cycloalkanes

Alkanes are saturated organic compounds which are made up of C and H atoms. Alkanes have the general formula of CnH2n+2. Alkane contains sp3 hybridized carbon atoms with four sigmas (σ) bonds & every hydrogen atom is connected with one of the carbon atoms. The size of the alkane could be determined by the number of carbon atoms located in it.