CHEM 2E03 Chapter Notes - Chapter 10: Reaction Rate, Markovnikov'S Rule, Elimination Reaction
Document Summary
Triple bond is comprised of three separate bonds: sigma bond and two pi bonds. Sigma bond results from overlap of sp-hybridized orbitals, while each pi bond results from overlapping p orbitals. Cylindrical region of high electron density encircling the triple bond. Similar to alkenes in their ability to function as either bases or nucleophiles. Monsubstituted triple bond (contains one alkyl group ) terminal alkynes disubstituted acetylenes internal alkynes. When the negative charge is on the oxygen atom, the base is not strong enough for deprotonation of the terminal alkyne strong bases have their neg charge on n, h, or c like: A base"s conjugate acid pka must be greater than 25 to deprotonate a terminal alkyne. An alkyl dihalide has two leaving groups and the transformation is accomplished via two successive elimination (e2) reactions: geminal dihalide: both halogens are connected to the same carbon vincinal dihalide: two halogens are connected to adjacent carbon atoms.
