N.O.
It does sound like your son is ready to transition from 2 to 1. From my expereince with my two girls, 17m and 3.5y, it's a transition you need to help facilitate. Both of them needed ditractions to get over the "hump" in the morning, generally solved with a lot of outdoor play or running errands. In fact, we are still in the tale-end of that transiton with our youngest. Initially, lunch was moved back to 11 and nap was followed soon after until 1:30 or 2:00. My 17 month old, is only now learning how to extend that afternoon nap. Also, you might have to move dinner and bedtime up a little earlier too. I have found that this transition was a bit more challenging than some others.
All the best to you!