4. Draw the most and least stable conformations of the following substituted cyclohexanes in the chair format (excluding transient conformations like half chair, twist boat and boat).
Q: 3. Which conformation is lower in energy? Explain.
A: Answer is the one at right is at less energy we know that group at axial position is less stable,…
Q: Draw all alkenes that react with one equivalent of H2 in the presence of a palladium catalyst to…
A: Constitutional isomer = Molecule with different structural arrangement but same molecular formula…
Q: is drawn below (left). Complete 10. One cis, trans isomer of 3,5-dimethylcyclohexanol the drawings…
A: The stability of cyclohexane is determined by the position of the substituent on the cyclohexane…
Q: Draw 1-methyl-3-isopropylcyclohexane in its most stable conformation. Hint: Please note that the…
A: Explanation to the correct answer is given below
Q: Draw both cis chair conformations of 2-methylcyclohexanol and circle the more stable one.
A: Solution : Reduction taken place with the help of Sodium borohydride is called as sodium boro…
Q: Draw both trans chair conformations of 2-methylcyclohexanol and circle the more stable one.
A:
Q: Draw the more stable chair conformation for attached trisubstitutedcyclohexane.
A: The most stable confirmation of cyclohexane is the chair form. Bulky groups at the equatorial…
Q: Draw the most and least stable conformations of the following substituted cyclohexanes in the chair…
A: We need to draw the most stable and least stable chair conformers of the given compounds. One thing…
Q: Which of the conformations shown has a lower energy?
A:
Q: Given cyclohexane in a chair conformation, draw the most stable isomer and conformation of…
A:
Q: Which are the correct conformations of 2,2-dimethylpentane
A: Given correct conformations of 2,2-dimethylpentane are
Q: Which do you expect to be the more stable conformation of cis-1,3-dimethylcyclobutane, A or B? Why?
A: Conformers are any two arrangements of atoms in a molecule that differ by rotation about single…
Q: Rank the following conformations in order of INCREASING energy.
A: 1,2 di bromo butane conformational analysis By using conformational analysis we can determine…
Q: HỘ, Но In its most stable chair conformation, indicate the orientation of each of the labeled groups…
A: The given chair for is the most stable structure of trans 1,4-dihydroxycyclohexane. Here both the OH…
Q: Draw the two chair forms for the attached trisubstituted cyclohexane, andlabel the more stable…
A: The chair form for the given compound is shown below.
Q: Ili
A: The given compound, (1S,2S,4R)-1-isopropyl-2,4-dimethylcyclohexane is in planar form. It contains…
Q: hich of the following statements is not true regarding the nformation of substituted cyclohexanes? O…
A:
Q: Draw the two chair conformations of trans-l-chloro-2-methylcyclohexane. Which is more stable?
A: A question based on introduction to organic chemistry that is to be accomplished.
Q: A can be converted to B from the following reactions. A is found existing in chair conformer,…
A:
Q: 1,3-dihydroxycyclohexane more stable? , is a cis isomer or trans isomer ?
A:
Q: Make a model of cyclooctatetraene in the tub conformation
A: Cyclo octatetraene is a cyclo alkene with four double bonds. But due to instability of the ring, it…
Q: Which conformation of cyclohexane has the greater steric strain?
A:
Q: Draw all alkenes that react with one equivalent of H2 in the presence of a palladium catalyst to…
A: a. The given alkane 2-methylbutane can be prepared in three ways by reacting a suitable alkene with…
Q: Among the figure, (a) what is the most stable conformation of n-pentane? (b) gauche conformation of…
A: Firstly we will see which structure is butanes and which structure is pentanes. A) Butane…
Q: Are my chair conformations correct? What about the energies of each conformation according to the…
A:
Q: Draw all alkenes that react with one equivalent of H2 in the presence of a palladium catalyst to…
A: Alkene reacts with H2 in presence of Pd/BaSO4 to form alkane and the process is known as catalytic…
Q: e most stable conformation c
A:
Q: Which conformation of ethane is more stable?
A: There are infinite number of conformations of ethane. But there are two conformations which are…
Q: Draw the alternative chair conformation. Which hydrogens are equatorial? Which are axial? Which are…
A: To draw an alternate chair conformation, one must convert to the boat conformation, then back to an…
Q: Draw the two chair conformations for ethylcyclohexane. Which is more stable?
A: Rotation about C-C single bonds allows a compound to adopt a variety of possible three-dimensional…
Q: How many chlorines are axial in the most stable chair conformation of the molecule below? (enter 0,…
A: The equatorial position will be mainly for the bulky group while the axial position will be for the…
Q: draw most stable chair conformation of trans-1-tert-buty-3-methylcyclohexane and most stable chair…
A: Chair form Exist in stable and unstable forms stable form have least interaction while unstable…
Q: Rank the alkenes from most stable to least stable. A B H3C CH3 H3C H H2C=CH2 H3C CH3 H3C The ranking…
A: Hyperconjugation is one of the factors which depend upon stability of alkenes. As the number of…
Q: Draw the most stable conformation of the molecule shown below. The most stable conformation is the…
A: The compound given is cis-1,2,3-trimethyl cyclohexane. So we have to draw the chair conformation in…
Q: the following heterocyclic compounds using Hantzsch- Widman nomenclature only. ? ... 1- 2- N- NH ? ?…
A: Hantzsch-Widman nomenclature rule: 1. Contains prefix which indicate the presence of hetroatom. 2.…
Q: Draw all possible conformations of trans-1-bromo-4- methylcyclohexane and indicate the most stable…
A:
Q: Circle the compound that would have the lowest energy at its most stable conformation and box the…
A: We have to circle the compound would have the lowest energy at its most stable confirmation as…
Q: draw a stable conformation of this compound
A: The given compound consists of three carbon centers C1, C2 and C3. The conformations of the compound…
Q: Draw the most stable conformation of the disubstituted cyclohexane below
A: Conformational isomers: The conformational isomers are formed by the rotation of a carbon-carbon…
Q: Create Newman projections depicting conformations along the carbon-carbon bond described above in…
A: Given:
Q: Ili-
A: The given substituted cyclohexane, (1S,2S,4R)-1-isopropyl-2,4-dimethylcyclohexane is in planar form.…
Q: (a) (1R,2R)-1,2-dibromocyclohexane, draw a three-dimensional representation.
A:
Q: Draw the chair conformations for cis-1-bromo-3-ethylcyclohexane and circle the most stable…
A:
Q: Please draw the two most stable conformations (chair conformatoin I beleive) and label the most…
A: A most stable chair conformation is possible when, There is no 1,3 diaxial interaction and, The…
Q: When you obtained a geometry optimized structure of methylcyclopentane, did you determine the energy…
A: The chemical name of an organic compound provides information about the functional groups present in…
Q: (2) 5. For each compound, which isomer, cis or trans, is more stable and why? You will need to…
A: Stability of conformation depends on following factors; 1. Conformation having low energy, more will…
Q: , draw its and then in the 2. For (1R, 2S, 4R)-4-tert-buyl-1-ethyl-2-methylcyclohexane: draw its…
A: Drawing skeletal structure of (1R,2S,4R)-4-tert-butyl-1-ethyl-2-methylcyclohexane.
Q: Which of compounds A-C would you expect to have the greatest heat of combustion? The smallest?…
A: Heat of combustion of the substance can be defined as the energy value or calorific value is the…
Q: what is the chair conformed and the ring that represents it? which chair conformation is the most…
A: Given is cyclohexane derivative.
Q: According to the following structure, draw the Newmann projections in which you must indicate: a)…
A: The Newman conformation of the given structure is
Step by step
Solved in 2 steps with 2 images
- Fill in the blanks: cis-1,3-Dimethylcyclohexane has two different chair conformations: one withboth methyl groups in __________ positions and one with both methyl groups in ____________ positions.Following is a chair conformation of cyclohexane with the carbon atoms numbered 1 through 6. (a) Draw hydrogen atoms that are above the plane of the ring on carbons 1 and 2 and below the plane of the ring on carbon 4. (b) Which of these hydrogens are equatorial? Which are axial? (c) Draw the alternative chair conformation. Which hydrogens are equatorial? Which are axial? Which are above the plane of the ring? Which are below it?2)- Determine the total number of conformers of the tetra-substituted cyclohexane structure given below (L.e, Draw the chair conformers of A that are, 6-levels of stability from the most stable of A, the sixth most staat conformer ofA, 9-levels that is unstable from the most unstable of A, and 5-levels of insta from the most unstable of A and the conformers of A that is representative of B. Note, only a total of six structures should be written on your paper. Also, include hydrogen atoms wherever are substituents on all of your chair conformers. Note, a table listing is a requirement for this problerm Answer (Total # of Conformers of A): 6-Levels of stability from the most stable of A: The sixth most stable conformer of A: 9-Levels that is unstable from the most unstable of A 5-levels of instability from the most unstable of A 스 Conformers of A that is representative of B:
- 6) Draw the energetically favored (more stable) chair conformer of the following cyclohexane. H3C OH 110Create Newman projections depicting conformations along the carbon-carbon bond described above in the lowest energy staggered conformation, gauche conformation, and highest energy eclipsed conformation. Appropriately label these conformations Please draw each out separately and do not just draw arrows on the molecule. OH HO HO. ОН ОНBy considering viewed through the C-2-C-3 bond, which below conformations of 2,3- dibromobutane show the most stable and the least stable conformation? Clearly explain the reason, why? S CH3 H H Br. H3C, Br H3C Br Br Br H. Br CH3 ČH3 H I II III Br Br H3C, Br H3C H. H3C" H. Br ČH3 IV V
- 3. Draw the most and least stable conformations for the following molecules, as seen looking down the indicated bond. (Hint: Bromine is a larger substituent than methyl.) Br Br Br Br4. Which structure below represents the most stable conformation of cis-1-t-butyl-4-methylcyclohexane? A B D 5. The planar form of which ring would have bond angles close to the tetrahedral value, but is destabilized by eclipsing interactions (torsional strain)? Which of the following statements about conformations is FALSE? A) Conformations can be isolated and separated at room temperature B) Conformations are interconverted by rotation about o-bonds C) For butane the staggered anti conformation is the most stable D) For ethane the eclipsed conformation is the least stable 6. 7. Which of the following compounds has two chirality centers? .H H. H3C10. One cis, trans isomer of 3,5-dimethylcyclohexanol is drawn below (left). Complete the drawings of the alternative chair conformations of this molecule (right), adding methyl substituents in axial and/or equatorial positions, as appropriate. Circle the more stable conformation. H3C,,, ОН OH -ОН CH3
- Compare the following conformers of 1-fluoropropan-1-ol. Match each conformer to their corresponding relative energy. Recall, the more stable the conformer the lower the energy. OH CH3 'F 2. HOH 2nd Highest Energy H 2nd Lowest Energy H3C 3. H. ОН Lowest Energy H 'F Highest Energy ČH3 4. H3C, OH 'F 1. >4. For the following structures, draw both possible chair conformations, using a ring flip to go from one to the other, and circle the one that is most stable/lowest energy. (Hint: Use Table 4.8 in Klein.) Show all groups, including hydrogen atoms, attached to the cyclohexane ring. А. Me Me Et В. Et t-Bu EtBy considering viewed through the C-2-C-3 bond, which below conformations of 2,3- dibromobutane show the most stable and the least stable conformation? Clearly explain the reason, why? CH3 H Br. H3C, Br H3C H3Č Br Br Br H. ČH3 Br CH3 H I II III Br Br Br H3C. H3C ČH3 H. H3C H. Br IV V