Question

convert Propane to one butyn

Answer 1

Answer:

Butane can be converted into 1,2-dibromobutane by free radical substitution in the presence of Br2 and UV light. Now, 1, 2-dibromobutane on treatment with base this vicinal dibromide would be expected to yield 1-bromo-1-butene followed by a second elimination to 1-butyne.