Chem 2423: Lab 7: Dehydration Of An Alcohol Lab Report

Chem 2423 - Lab 7: Dehydra3on of an Alcohol Lab Report CHEM 2423: Lab 7: Dehydration of an Alcohol Lab Report Class: Chem 2423 Introduction Elimination reactions are reactions that remove two substituents, a leaving group and hydrogen. There are 2 mechanisms for this E1 and E2. The main differences are: E1 involves a weak nucleophile, a good leaving group, and a substituted electrophile. E1 is a 2-step process. Firstly, the leaving group leaves. Secondarily the nucleophile acts as a base and abstracts an alpha proton. As the alpha proton is abstracted the beta proton - leaving group bond is cleaved abstracting the beta proton. E2 involves a bulky nucleophile or base, hindered electrophile, and a poor leaving group. E2 is a 1 step process. The base abstracts an alpha proton, and the leaving group departs at the same time. As the alpha proton is abstracted the beta proton - leaving group bond is cleaved abstracting the beta proton. There can be a competition between substitution and elimination. The conditions that favor elimination is increasing heat and increasing bascicity of the lewis base. This all relates to the experiment through elimination reactions being used to form the alkenes that we