I am not experienced in the topic, and could not find any article related to these kind of reactions, but my guess is the following:
After the nuclear transmutation the nitrogen will lose an electron (beta particle), so it will have positive charge. The electron shells will collapse a little bit, since the nitrogen has smaller nuclear radius. The part after that depends on which carbon we are talking about. I would guess the following rearrangements:
- ${-CH2OH} \rightarrow {-NHOH} + H^+ $
- ${=CHOH} \rightarrow {=NH} + H^+ $
- ${-CHO} \rightarrow {-NO} + H^+ $
I think it is the easiest to split the carbon/nitrogen-hydrogen bonds, but I learned about this 10 years ago, so I am not completely certain about this.