I do experiment in inert condition with nitrogen and color of catalyst seem to be good. But I cannot verify my product by TLC. Could it be on the top with the highest Rf?
We all try to do reactions under inert conditions, but succeeding is a different story! If a sensitive reaction isn't working, then the first two things to check are always
1. Starting material purity (USE NMR)
2. Is your reaction really air and water free
Yes, I think this product would run faster than any of the starting materials. It is pretty nonpolar. Why not isolate that 0.9 and see what it is? At worst it may give a hint where your reaction is going wrong.
Also, your catalyst will produce triphenylphosphine oxide when you work it up, that may be one of the spots.