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Professions and Applied Sciences
Haloalkanes1c: 26 isomers of C6H13Br
One in a series of videos on haloalkanes (alkyl halides), it looks at the structures and names of the 26 isomers of bromohexane (C6H13Br). That includes both structural and optical isomers.
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Carbonyls 1. Isomers of C6H12O
This video looks at many of the possible isomers that share the molecular formula C6H12O. All of the possible aldehydes and ketones are included.
Haloalkanes 3. 1-Bromobutane preparation and purification.
This video looks at the preparation and purification of a primary haloalkane (1-bromobutane) from the corresponding primary alcohol (butan-1-ol). This has an Sn2 mechanism. You will find an accompanying video (Haloalkanes 4) that looks at the preparation of a tertiary haloalkane in a Sn1 mechanism.
Haloalkanes 4. Sn1 and Sn2 Nucleophilic Substitution
This video outlines the mechanisms of Sn1 and Sn2 nucleophilic substitution reactions of haloalkanes and explains why primary haloalkanes do not undergo Sn1 using a reaction profile diagram
Haloalkanes 7. Elimination to form an Alkene.
One in a series looking at the chemistry of haloalkanes (alkyl halides). This video looks at the reaction of bromoethane with an ethanolic solution of potassium hydroxide. The contrast is drawn between nucleophilic substitution and elimination mechanisms. In substitution the hydroxide ions behave as nucleophiles, whereas in elimination, the hydroxide ions act as a Bronsted base bringing about deprotonation.
Optical Isomerism. Identification and uses.
This video explains how optical stereoisomerism arises, how it can be detected using a polarimeter and how it may be used to analyse certain reaction mechanisms.
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