It wouldn't work, there is no such converter.
HDMI is a pure Digital signal, Scart is an Analogue signal, If you shoved an analogue signal into a HDMI port the TV set would just see the signal as static and would totally ignor it.
Even if such an adapter was possible to obtain it would be pointless as most new Ts still have Scart sockets aswell as HDMI, nothing would be gained by trying such a pointless exercise.
Nano