Question 5 Which set of Newman projections represents correct the most stable and the least stable conformation for the following compound: A B H CH3 H CH3 C C D H CH3 CH3 CH3 H3C. H H3C H H3C. CH3 H. H H₁C CH3 H CH3 H3C CH3 H CH3 CH3 CH3 CH3 most stable most stable most stable most stable H Н CH3 Н H3C H3C- H H3C H H3C. CH3 H. H H3C- H3C- H- CHCH3 CHCH3 CHCH3 CHCH3 least stable least stable least stable least stable A HBCD
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- A trisubstituted cyclohexane with three substituents-red, green, and blue-undergoes a ring-flip to its alternate chair conformation. Identify each substituent as axial or equatorial, and show the positions occupied by the three substituents in the ring-flipped form.The most stable chair conformation of cis1-butyl-4-methylcyclohexane is CH CHs CHg D. H O D O B O AIdentify the most stable chair conformation of the most stable isomer of 1,4-diethylcyclohexane. II II IV | || II IV
- 022 cements S ions Which set of Newman projections represents correct staggered and the eclipsed least stable conformation for the following compound: A D H CH3 CH3 CH3 H3C H Et H₂C H3C H nghi nghi ngờ H3C CH3 CH3 H CH3 H CH3 Et CH3 Et Et Me H H- H OA OB OC OD Me Et Me Me H₂ H Me- H B Me H Et Me H- H C H Me Et MacBook Pro Me Me Me- H Et MeFollowing is the Structural formal of Chloropropane H H H 2. H Draw Newman projections for all staggered and eclipsed conformation formed by rotation about C1 - C2 bond from 0° to 360°. b) Which Staggered conformation(s) has the lowest energy; which has the highest energy? c) Which eclipsed conformation(s) has the lowest energy, which has thhe highest energy?Draw the most stable conformation for Cis-1-Cloro-3-methylcyclohexane
- Which conformation is most stable? CH3 CH, CH, CH3 CH2 CH, CH3 CH3 D B А CQuestion 4 Which set of Newman projections represents correct the most stable and the least stable conformation for the following compound: A B Me H H H C D CH3 H CH3 H. CH3 Н CH3 CH3 H CH3 H3C H H H H CH3 CH3 H CH3 CH3 most stable most stable most stable most stable CH3 H H H H. CH3 H. CH3 H. CH3 H CH3 H- H- H- H- CHCH H H CHCH3 CHCHI least stable least stable least stable least stable ABCDWhich of the following is the correct wedge and dash conformation for the following Newman projection? 01 O 11 O III O IV OV CI -- CI || CH HD CH3 CH₂ Cl Et پاک خیار CI V
- 6. Sort the following conformations of 1-chloropropane from most stable to least stable. H CI Hн Н Н Н CH₂ н H н CI 2) Н CH, H 3) CH1 CIQuestion 1 Which set of Newman projections represents correct the most stable and the least stable conformation for the following compound: 0000 A B Me Me Me Me с D H CH3 H H H3C CH3 H3C CH3 H3C. CH3 H₁C CH3 H3C CH3 H₂C CH3 H3C CH3 H H CH3 H CH3 most stable most stable most stable most stable CH3 CH3 Н H H3C. CH3 H3C CH3 H3C CH3 H3C. CH3 H3C- H3C- H3C- H- H H CHCH3 H CH3 CHH least stable least stable least stable least stable ABCDQuestion 2 Which set of Newman projections represents correct the most stable and the least stable conformation for the following compound: H H A B с D CH3 CH3 CH3 CH3 H. Et H. H H H H H H H Η Et H H H H H H CH3 Et most stable most stable most stable most stable H. H- CH3 Et H CH3 H H H CH3 H. Et H- H- H H CH3 Et CH3 least stable least stable least stable least stable ABCD