Synthesizing Cyclohexene by Dehydrating Cyclohexanol

Synthesizing Cyclohexene by Dehydrating Cyclohexanol Abstract 12.0mL of 85% phosphoric acid, 10.0mL of cyclohexanol and heat were utilize to cause an alcohol dehydration answer and produce 5.85g of cyclohexene. The part sanction was found to be 74.84% after being washed with 10% sodium carbonate and dried with anhydrous Na2SO4. IR was used, on with a bromine test to confirm the individuation of the newly formed cyclohexene. Introduction In organic chemistry, galore(postnominal) different operative groups exist that have tendencies to react with apiece other in specific ways. Four main types of responses germane(predicate) to this experiment atomic number 18 uni/di-molecular nucleophilic substitution (SN1 and SN2) and uni/di-molecular settlement (E1 and E2). In most cases, SN1 a good deal competes with E1, and SN2 a lot competes with E2 reactions. In a SN2 reaction, a nucleophile comes in contact with a substrate scrap and works to replace a sleigh grou p on the substrate. A nucleophile is a molecule that is constitute to donate an electron pair to a substrate (electrophile). When glide path shot the electrophile, the nucleophile comes from the opposite side of the going group (backside attack).

As the nucleophile attaches, the go forth group simultaneously departs (concerted rxn), going a new molecule with an inverted stereocenter configuration from the original. Good leaving groups be those that are most easily replaced by the nucleophile, usually being decrepit bases and small in size (halogens). The weaker the base, the little inclined the leaving group is to stick with the s ubstrate and more likely it is to bring wh! en a stronger nucleophile is introduced. Since SN2 reactions are concerted, the rate of the reaction can be directly related to the concentrations of the substrate and nucleophile (Rate = k[sub][nuc]) in solution. Example SN2 reaction: As mentioned earlier, E2 elimination reactions often compete with SN2 mainly depending on the basicity and hindrance of the nucleophile. However, the...If you want to get a full essay, put up it on our website: BestEssayCheap.com

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