CBMS107 Lecture Notes - Lecture 13: Grignard Reaction, Syn And Anti Addition, Substituent
3 Aug 2018
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11th of april 2018: lecture 20 and 21 alkyl halides. The bond is polarized due to the high electronegativity of the halogen. Most halo alkanes are miscible (making a homogenous mixture when added together) in non-polar solvents. Common uses include: fire resistant solvents, pharmaceuticals and pesticides. Can be classified as primary (1), secondary (2) or tertiary (3) depending on the substitution pattern on the carbon attached to the halogen: naming alkyl halides: For alkane number from end nearest any substituent (alkyl or halogen) List substituents alphabetically: naming with multiple halogens of same kind: If more than one of the same kind of halogen is present use: di, tri and terta. If there are several different halogens, number them and list them alphabetically order disregarding the di ,tri etc: preparing alkyl halides: Addition of hcl, hbr, hi to alkenes to give. Alkyl dihalide (dihaloalkanes) from anti addition of bromine or chlorine: from alcohols:
