Alkyne Reactions

8 reactions in this topic, each with the reagents, the mechanism and the structure of the product.

Alkynes are made from geminal or vicinal dihaloalkanes by double elimination. Alkenyl halides are intermediate, being formed stere

Deprotonation is a treatment of acetylene with a strong base such as NaNH2 or NaH where acetylide (alkynide) anion is obtained.

Hydroboration is the treatment of alkynes with BH3, followed by H2O2 in which aldehydes and ketones are obtained.

Hydrogenation of alkynes is the addition of hydrogen to a triple bond in the presence of a catalyst.

The oxidative cleavage is the cleavage of the triple bond in the alkyne by an oxidizing agent such as potassium permanganate (KMnO

Alkynes treated with mercury (usually HgSO4) and water will be hydrated to give ketones, via an enol intermediate.

Alkynes treated with ozone (O3) will be cleaved at the triple bond to form carboxylic acids. Terminal alkynes give carboxylic acid

Alkynes treated with sodium in ammonia are reduced to trans alkenes. Alternatively, potassium in ammonia can also be used.