ACCT 2101 : Summary For Exam1

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15 Mar 2019
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Summary of major things to know for the final. Exam 1 - extended summary (note: you will need to know the mechanisms for items with an * ) Ortho (o), meta (m), para (p) only can be used in disubstituted benzenes. Special cases required to be used in naming: phenol, aniline, toluene, benzoic acid, styrene. Draw molecular orbitals using the polygon method to determine aromaticity. The more resonance structures you can draw, the more stable the molecule is. Annulenes and aromatic ions: determine if they are aromatic or antiaromatic. Fused-ring (polycyclic) aromatic compounds: know characteristic representatives (naphthalene, anthracene, phenanthrene, pyrene) Heterocyclic aromatic systems pyridine, pyrrole, furan, thiophene. Only one pair of electrons of a heteroatom is considered, the rest ignored. Everything else is the same as in carbocycles. Ir: recognize characteristic bands for aromatic compounds (1600 and 1400-1500 cm 1). 1h nmr: determine substitution pattern (monosubstituted, disubstituted (ortho, meta, para) based on splitting of the aromatic signals (around 7 ppm).