alkynes Flashcards
(8 cards)
1
Q
when a carbon becomes a carbanion, it acts as a …
A
nucleophile
2
Q
what do we do when the question says excess
A
we can add more than 1 of the nucleophile
3
Q
acid catalysed hydration of an alkyne produces a _____, not an alcohol.
A
ketone
4
Q
when we add a strong acid to an alkyne we produce a ____
A
geminal dihalide (both halogens are on the same carbon)
5
Q
draw the mechanism for the proaction of a geminal dihalide
A
6
Q
draw the mechanism for the hydration of an alkyne - enol and keto
A
7
Q
draw the mechanism for the oxymercuration of terminal alkynes
A
8
Q
mechanism for the formation of terminal alkynes from vinyl halides
A