Crash Course
Alkenes & Alkynes - Crash Course Chemistry
Today Hank talks about the deliciousness of alkenes & alkynes, their structures, and how to remember which is which by simply knowing the alphabet. Also, he breaks down hydrogenation, halogenation, polymerization, and triglycerides all...
Curated Video
Sp Hybridization in Alkynes: Exploring Triple Bonds
In alkynes, such as acetylene (Câ‚‚Hâ‚‚), carbon atoms undergo sp hybridization. This involves the mixing of one 2s orbital and one 2p orbital, forming two sp hybrid orbitals. These orbitals align in a linear arrangement with a bond angle of...
Professor Dave Explains
The Chemistry of Arynes (Benzyne)
In this course we've come across some surprising structures, but benzyne is one of the most surprising. It would seem impossible that a triple bond could form on a benzene ring, and in truth it can't fully form, but benzyne is a molecule...
Professor Dave Explains
IUPAC Nomenclature of Alkenes and Alkynes
Naming molecules according to IUPAC nomenclature.
Professor Dave Explains
Alkyne Synthesis by Double Dehydrohalogenation
An overview of alkyne synthesis via double dehydrohalogenation.
Khan Academy
Markovnikov's Rule and Carbocations, Alkenes and Alkynes, Organic chemistry
Markovnikov's rule is explained in the context of pent-1-ene and Hydrogen bromide. There is a review of electronegativity, which is helpful for viewers, and a recap of how valence electrons behave. The explanation for Markovnikov's rule...
Curated OER
Alkyl halide nomenclature and classification
A short video introduces the things other than carbon that can branch off the main chain of a hydrocarbon. The examples have double bonds, so the practice involves many of the nomenclature rules that the video series has...
JFR Science
Organic Chemistry: Alkenes, Alkynes and Isomers
How do we tell organic molecules apart? Discover the basics of alkene and alkyne formulas, bonding, and isomers with a video from JFR Science. The narrator shows examples, adds functional groups, then creates isomers to elaborate on how...
Crash Course
Crash Course Chemistry #41: Alkenes & Alkynes
A crash course in alkenes and alkynes, their structures, and how to remember which is which. [9:36]
Khan Academy
Khan Academy: Naming and Preparing Alkynes: Alkyne Acidity and Alkylation
A video lecture exploring alkylations of alkyne and determining the acidity of alkynes. [7:55]
Khan Academy
Khan Academy: Alkyne Reactions: Hydroboration Oxidation of Alkynes
Video lecture explores hydroboration-oxidation of alkynes. [8:35]
Khan Academy
Khan Academy: Alkyne Reactions: Hydration of Alkynes
Video lesson discusses the hydration of alkynes. [7:56]
Khan Academy
Khan Academy: Alkyne Reactions: Halogenation and Ozonolysis of Alkynes
Video lecture discusses halogenation and ozonolysis of alkynes. [7:20]
Khan Academy
Khan Academy: Alkyne Reactions: Hydrohalogenation of Alkynes
Video lecture explains the hydrohalogenation of alkynes. [10:09]
Khan Academy
Khan Academy: Naming and Preparing Alkynes: Preparation of Alkynes
Note that if a terminal alkyne is produced, the strong base will deprotonate the alkyne to form an alkynide anion. A proton source (like H2O) must be added to regenerate the terminal alkyne.
Khan Academy
Khan Academy: Naming and Preparing Alkynes: Alkyne Nomenclature
A lesson explaining the names of alkynes. [7:08]
Khan Academy
Khan Academy: Alkyne Reactions: Reduction of Alkynes
Video lecture explains the reduction of alkynes. [10:04]
Khan Academy
Khan Academy: Alkyne Nomenclature
Do you know how to name molecules that have a triple carbon-carbon bond? This video will review over the rules for naming alkynes. [7:07]
Khan Academy
Khan Academy: Alkyne Acidity and Alkylation
Find out how terminal alkynes can act as weak acids and react with alkyl halides, leading to their alkylation in this video. [7:55]
Khan Academy
Khan Academy: Hydrohalogenation
Reaction of an alkene with a hydrogen halide, converting the double bond to a halogenated single bond. [12:03]
Khan Academy
Khan Academy: Hydrohalogenation of Alkynes
See the reaction of an alkyne with a hydrogen halide, leading to formation of a halogenated alkene or alkane. [10:08]
Khan Academy
Khan Academy: Hydroboration Oxidation of Alkynes
Two-step reaction in which an alkene is converted to an alkene with a hydroxyl substituent (which may tauromerize to a carbonyl). [8:34]