CHEM 341 Lecture Notes - Allyl Group, Nucleophile, Electrophile
Document Summary
Each ring and each bond removes 2 h"s from alkane general formula. Endless possibilities including more than one double bond. Molecules based on formulas can have different structures. Ending in ene double bond should be numbered. Rules same as alkanes double bond must be in longest linear chain. Alkenes are unsaturated hydrocarbons they have less than max # of hydrogens. Allyl carbon sp3 carbon attached to alkene. Double bond composed of 1 bond, 1 bond. Bond requires p orbital from each participating atom c must be sp2. Recall that sp2 atom has all sp2 orbitals in same plane. Cis isomer priority constituents are on same side of bond. Trans isomer priority constituents are on opposite sides of bond. Cis and trans alkene isomers are different compounds. Compare substituents on first carbon involved in double bond. Zusanmen together , higher priority on same side, z. Entegen opposite , higher priority on opposite sides, e.
