Term
Dehydrogenation of a __________ or __________ dihalide gives a vinyl halide.
Under strongly __________ conditions, a second dehydrohalogenation may occur to form an __________. |
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Definition
1) Geminal
2) Vicinal
3) Basic
4) Alkyne |
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Term
A dehydrohalogenation which occurs under extremely __________ conditions, in which fused (molten) or alcoholic __________ is sealed in a tube and is usually heated to temperatures close to 200 degrees Celsius.
__________ __________ is also used for the double dehydrohalogenation; however, since it is a much stronger base than hydroxide, the reaction takes place at a (lower/higher) temperature. |
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Definition
1) Basic
2) KOH
3) Sodium amide
4) Lower |
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Term
| In the synthesis of alkynes, __________ elimination tends to give the most stable (internal/terminal) alkyne. |
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Definition
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Term
| In the synthesis of alkynes, __________ __________ elimination tends to give a (internal/terminal) alkyne since the acetylenic hydrogen is deprotonated by the __________ ion; this gives an __________ ion as the initial product. |
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Definition
1) Sodium amide
2) Terminal
3) Amide
4) Acetylide |
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Term
*Synthesis of Alkynes*
1. __________ of acetylide ions
2. Additions to __________ groups.
3. Double __________ of alkyl __________. |
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Definition
1) Alkylation
2) Carbonyl
3A) Dehydrohalogenation
3B) Dihalides |
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