1. Draw the most stable chair conformation if $1,2,4$ trichlorocyclohexane in which all chlorine atoms are cis to one another. (4 pts.)
2. Starting with the conformation in Part c above, draw the result of a "ring flip". Label all positions as axial (a) or equatorial (eq). (4 pts

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∻Solution∻ ‖ 1 ⋮ **Identify the most stable conformation**: For 1,2,4-trichlorocyclohexane with all chlorine atoms cis to one another, the most stable chair conformation will have the bulky chlorine substituents in the equatorial positions to minimize steric hindrance. ‖ ‖ 2 ⋮ **Draw the most stable chair conformation**: Place the chlorine atoms on carbon atoms 1, 2, and 4 of the cyclohexane chair conformation. To have all chlorines cis to each other, two chlorines must be on the same side of the ring and one on the opposite side, all in equatorial positions. ‖ ‖ 3 ⋮ **Perform a ring flip**: To show the result of a ring flip, invert the chair conformation. This will interchange the axial and equatorial positions of all substituents. ‖ ‖ 4 ⋮ **Label axial and equatorial positions**: After the ring flip, label the new positions of the chlorine atoms as axial (a) or equatorial (eq) based on their orientation in the flipped chair conformation. ‖ ∻1 Answer∻ ⚹ The most stable chair conformation has all chlorine atoms in equatorial positions. After a ring flip, the chlorines at positions 1 and 4 are axial, and the chlorine at position 2 is equatorial. ⚹ ∻Key Concept∻ ⚹ Stability of chair conformations with substituents ⚹ ∻Explanation∻ ⚹ Substituents on a cyclohexane ring prefer the equatorial position to minimize steric hindrance, leading to a more stable conformation. ⚹ ∻2 Answer∻ ⚹ After the ring flip, the chlorines at positions 1 and 4 are in axial positions, and the chlorine at position 2 remains in an equatorial position. ⚹ ∻Key Concept∻ ⚹ Ring flip in cyclohexane chair conformations ⚹ ∻Explanation∻ ⚹ A ring flip interchanges the axial and equatorial positions of substituents on a cyclohexane ring. ⚹◊What is the molecular formula for 1,2,4-trichlorocyclohexane⍭ Generate me a similar question◊

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