No there is no way to get to Sinnoh.
No you cannot. Chimchar is from the Sinnoh region. In White, you can only capture Pokemon that live in the Uvoua region.
Sinnoh.
Yes if you are looking at the cave of being it will take you all the way to the Sinnoh Region
there is no sinnoh region
there is no region after sinnoh in Pokemon diamond and Pokemon pearl.
it probably wont because pokemon br is in the sinnoh region
You can't go to the sinnoh region.
Unknown is the 114th Pokemon in the sinnoh dex.
I think your talking about HeartGold/SoulSilver. In Pokemon HeartGold/SoulSilver you're not capable of going to the Sinnoh region, only Jhoto and Kanto are avaliable.
The Sinnoh region is the only region in Pokemon Diamond, although the area in the northeast of Sinnoh is like a mini-region.
the sinnoh region.
No it is in the Hoenn Region