which are more stable? CH3 Cite CH3 CH Conformation 2 for isomer A (A2) Conformation 1 for isomer A (A1) Question 3:...
Question 5: Can you convert from Al to A2 or Bl to B2? How? Question 6: Can you convert Al to Bi? How? Question 7: What is the relationship of A 1 and B1, Al and A2, B1 and B2, A2 and B2? Urgance Modeling Lab IV 2 Draw two different chair conformations for model isomer A Conformation 1 for isomer A (AI) Conformation 2 for isomer A (A2) Question 3: Which conformation is more stable for isomer A? Why?...
11. Build the chair and boat conformations and identify the most stable conformation. Identify the 1,3-diaxial interactions. 12. Draw the most stable conformation of (a) ethylcyclohexane (b) 3-isopropyl-1,1-dimethylcyclohexane (c) cis-1-tert-butyl-4-isopropylcyclohexane 13. Draw all possible conformations of 1,4-dimethylcyclohexane and identify the most stable conformation 14. (a) Draw both chair conformations of cis-1,2-dimethylcyclohexane, and determine which conformer is more stable. (b) Repeat for the trans isomer. (c) Predict which isomer (cis or trans) is more stable. 15. (a) Draw both chair conformations...
1. Now construct cis-1,2-dimethylcyclohexane in the chair conformation and draw it. Perform the ring flip and draw that conformation. Which of the two conformations is preferred? This compound is meso, find the conformation that accounts for this? 2. Construct and draw trans-1-ethyl-2-methylcyclohexane in the chair conformation. Perform the ring flip and draw that conformation. Which conformation is preferred/most stable? Why? Construct and draw the cis isomer in the most stable chair conformation. Perform the ring flip and draw that conformation....
1. Draw the different conformations of cyclohexane and indicate which conformer is more stable and explain the reason why it is more stable. 2. Draw the saddle conformation of cyclohexane and indicate the axial and equatorial positions of the hydrogen atoms. 3. Identify the chiral carbon with an asterisk in the following molecule. Say how many stereoisomers you can have. CH3CH(OH)CH(Br)CH3
7. (13 points) For the compound 1-tert-butyl-4-methylcyclohexane: a. Draw the two possible chair conformations for the cis isomer, Which conformation, if either, is more stable? Circle one b. Draw the two possible chair conformations for the cis isomer, Which conformation, if either, is more stable? Circle one trans: C. Between the two more stable isomers circled above, which is more stable? Why?
One structure below represents menthol and one represents is menthol. Menthol, the more stable isomer, is used in lip balms and mouthwash. Below structures [1] and [2] are a selection of 4 chair conformations. Identify the one structure, from each group, that represents the most stable chair conformation of [1] and [2]. Part 2 out of 2 Which structure corresponds to menthol?
Can anyone help me with this ? (a) (b) .CI For each compound below 1. Draw representations for the cis and trans isomers using a hexagon for the six- (i) membered ring, and wedges and dashes for substituents. Draw the two possible chair conformations for the cis isomer. Which conformation, if (ii) either, is more stable? Draw the two possible chair conformations for the trans isomer. Which conformation. (iii) if either, is more stable? Which isomer, cis or trans, is...
Select the most stable chair conformation for (1R,3S,5S)-1-chloro-3-isopropyl-5-methylcyclohexane. Select the most stable chair conformation for (1R,3S,5S)-1-chloro-3-isopropyl-5-methylcyclohexane Select the most stable chair conformation. CH(CH3)2 (1R,3S,5S)-1-chloro-3-isopropyl-5-methylcyclohexane Chair choices: CI CH CH3 CH3 (H3C)2HC CH(CH3)2 (H3C)2HC CH3 CH3 CH3 Cl CH(CH3)2 (H3C2HC (H3C)2HC
Chem 241 Chapter 3 -Class Praetice 2 Draw the 2 chair conformations of the following, label the substituents as axial or equatorial Determine which conformation between the 2 is more stable. cis-1-ethyl-3-isopropylcyclohexane trans-1-isopropyl-2-methyleyclohexane trans-1-methyl-2-isopropylcyclohexane cis-1-ethyl-4-methylcyclohexane Among the following, which respresent the same compound? Which represent different compounds? CH3 H3C HyC CHs H. CH3
Rank conformations bcd from most stable to least stable (most stable first) DUH ΤΗ HH Conformation A Question 2 (1.5 pts] Rank conformations B, C and D from most stable to least stable (most stable first C(CH.CH2CH3)3 CH(CH3)2 X H H H HH А Conformation B Conformation C Conformation D Question 3 (1.5 pts) Which one of the following statements about structure E is correct?