Answer to Question #308953 in Organic Chemistry for Lipi

Question

Give mechanism of the following:

(i) Hydrohalogenation of an alkyne

(ii) Ozonolysis of an alkyne

Answer 1

Hydrohalogenation of alkynes takes place in a similar manner, with the first addition of HX forming a vinyl halide and the second giving a geminal dihalide. The mechanism begins with a proton transfer from HCl to the alkyne.

Ozonolysis is an organic reaction where the unsaturated bonds of alkenes, alkynes, or azo compounds are cleaved with ozone. Alkenes and alkynes form organic compounds in which the multiple carbon–carbon bond has been replaced by a carbonyl group while azo compounds form nitrosamines.