How did you take advantage of How did you take advantage of Le Chatelier\'s Prin

Question

How did you take advantage of How did you take advantage of Le Chatelier's Principle in driving the cyclohexanol dehydration reaction to completion? Think about the glassware experimental set-up. Also explain how adding a drying salt like CaSO_4 directly to the reaction still-pot might also facilitate this process. The reaction proceeds via a combination of E_1 and E_2 reactions as well as via solvolysis by product formation. Which isomer cis or trans is expected to react faster in an E_2 elimination and why? Think about the chair conformational analysis for each compound.

Explanation / Answer

In the chair form , cis remains in one group remains axial and one equatorial

but in trans one bothgroup remains in the equatorial position.

in E2 elimination , both group (the leaving group) should remain in the anti form or 180 degree which is not possible in case of equatorial or TRANS conformation .

therefore cis conformer reacts faster than the trans one.

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