CHM136H1 Chapter Notes - Chapter 15: Cyclohexene, Electrophilic Aromatic Substitution, Nitrobenzene

• School: UTSG
• Department: Chemistry
• Course: CHM136H1
• Professor: Thavarajah/ Woolley/ Nitz

Document Summary

Monosubstituted benzenes: benzene parent name, eg/ bromobenzene, nitrobenzene, propylbenzene. Alkyl-substituted benzenes: sometimes referred to as arenes, named depending on size of alkyl group. If alkyly is smaller than the ring (6 or fewer c) named as an alkyl-substituted benzene. If alkyl is larger than ring (7 ore more c) named as a phenyl-substituted alkane. Disubstituted benzenes: ortho two substitutents in a 1,2 relationship on the ring, meta two substituents in a 1,3 relationship, para two substituents in a 1,4 relationship. Characteristics of aromatic compounds: aromatic compounds are cyclic (ringed) and planar (flat) structures, aromaticity is associated with -bonding, all atoms must have an unhybridized p-orbital. 15. 3 aromaticity and the huckel 4n + 2 rule: aromatic molecules posses 4n + 2 -electrons, (n=0,1,2 ) = huckel"s rule, n = 0 2 -electrons, n = 1 6 -electrons, n = 2 10 -electrons.