Hydroboration oxidation reaction on trans,trans,trans-1,5,9-cyclododecatriene with carbon monoxide
You guessed it right: a ketone will be formed.
This reaction involves migration of alkyl groups from boron to the carbon atom of CO. There will be three migrations after which you will get your alcohol:



Image taken from National Programme on Technology Enhanced Learning (NPTEL). Lecture 26 : Boron Containing Compounds. Image link: Scheme 9

See also Handouts for Organic Chemistry Lectures given at Imperial College London, Chemistry, by Henry Rzepa.