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27-12-2017
Chemistry

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Draw the major organic product from reaction of 2-butyne with li in nh3.

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Dejanras Dejanras

03-01-2018

Alkynes can be reduced to trans-alkenes using Li(lithium) in NH₃(ammonia).
Lithium is a reducing agent.
In this case product is trans-2-butene.
Reaction:
CH₃-C≡C-CH₃ (2-butyne) + 2 Li in NH₃ (liq) ——>
trans CH₃-CH=CH-CH₃ + 2 LiNH₂ (lithium-amide).

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