CHEM 281 Lecture Notes - Fluorine, Lewis Acids And Bases, Protonation
5 Nov 2013
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Document Summary
Almost all organic reactions fall into one of four categories: substitutions additions eliminations rearrangements. H-c-ch3 o- ch3 methoxide is a strong base. Light activated reaction: changes br2 into free radicals. Electrophilic aromatic substiution (eas): substituting an aromatic hydrogen fo ch3 group. Where alcl3 is a catalyst (nothing happens w/out it) Additions characteristic of compounds with multiple bonds adding reagent appear in the product; two molecules become one in an addition all parts of the adding reagent appear in the product; two molecules become one examples: Ccl4: has polar bonds but not polar overall. Free rotation around c-c bond placement of br doesn"t matter. But if in double bonded cyclohexane: br add in trans configuration. No light (h ) using alkene as a source of electrons. Eliminations in an elimination one molecule loses the elements of another small molecule elimination reactions give us a method for preparing compounds with double and triple bonds examples:
