Question

Draw step one of the mechanism (first elimination). Do not explicitly draw any hydrogen atoms in the product of this reaction. Include lone pairs in your answer. In this step eliminate the Cl on the secondary carbon NOT the Chlorine on the primary carbon.

CH 3 H3C NH Edit H3C CI Cl

Answer 1

E2 indicates a bimolecular elimination reaction, where rate = k [B][R-LG]. ( B - base ; LG- substrate)

This implies that the rate determining step involves an interaction between these two species, the base, and the organic substrate,

Effects of R-
Reactivity order :   (CH₃)₃C- > (CH₃)₂CH-   > CH₃CH₂- > CH₃-

In an E2 reaction, the reaction transforms 2 sp³ C atoms into sp² C atoms. This moves the substituents further apart decreasing any steric interactions. So more highly substituted systems undergo E2 eliminations more rapidly.