Chemistry 1027A/B Chapter Notes - Chapter 10: Aromatic Amine, Lone Pair, Orbital Hybridisation
15 Mar 2015
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One or more h atoms are replaced by alkyl or aryl groups. Classified as primary (1 ), secondary (2 ), tertiary (3 : depending on number of hydrogen atoms of ammonia that are replaced by alkyl or aryl group. Each n atom adds 1 h to saturated formula: unsaturation calculations subtract one h for each n. Alkaloids: compounds that contain n, are weak bases amines) Alkyl amines have n with a full octet, three sigma bonds, sp3 hybridization and one lone pair (except 4 . N atoms with three bonded atoms/groups do not act as stereocenters lone pair rapidly interconverts from one enantiomer to the next. Suffix e of parent alkane is dropped and replaced by amine. Simple amines are named by placing names of alkyl substituents in alpha order before word amine. Aniline: c6h5nh2, simplest aromatic amine, simple derivatives are named with prefixes o, m or p. Pyridine: 1 aromatic ring, 1 nitrogen atom in ring.
