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19 Terms
Alkene general molecular formula
CnH2n-2
How are alkynes prepared
Germinal/vicinal dihalides get 2 HX removed by base
What bases can deprotonste an alkyne
NH2 and H-
What mechanism
Hydrohalogenation
Which is slower? Addition of HX to alkenes or alkynes
Alkynes
Name the mechanism
Halogenation
Hydration of alkyne reagents
H2O
H2SO4 and HgSO4
What type of alkyne does a hydration rxn to form a ketone
Internal
What type of alkyne does a hydration rxn to form a methylketone
Terminal
What tautomer form is this
Enol
What tautomer form is this
Keto
What mechanism is this
Tautomerization
What mechanism is this
Hydration
What is the product of a hydroboration oxi reaction of an internal alkyne
Ketone
What is the product of a hydroboration oxi reaction of a terminal alkyne
Aldehyde
Example bases for terminal alkynes into acetylide ions
NaNH2 and NaH
When an acetylide ion is present…
Undergo Sn2 wedge dash swap
What reaction do 2/3 prime acetylide ions undergo
Elimination via E2
What type of reaction is this
Acetylide Sn2 epoxide opening