Thanks for your answer!
The reaction with NaOH should require just heating so if i get the stochiometry right it should work according with what you mention.
It is for an exercise on pathway anyway so as long as i manage to make some, it is fine!
Thanks a gain for the help!
By the way the resulting geminal diol, if the dihalide undergo 2 SN2, would easily undergo intramolecular dehydration and form the carbonyl compound, i believe your memory serves you very well!