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.
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.
the 148th Pokemon in the sinnoh region pokedex is azelf
You can't go to the sinnoh region.
No, you cannot go to the Sinnoh region in PokÃ©mon Black 2 and White 2.
it probably wont because pokemon br is in the sinnoh region
The region after Sinnoh is now called Unova (or Isshu イッシュ in Japanese). Unova is in the games called Pokemon Black, Pokemon White, Pokemon Black 2, and Pokemon White 2 as well as possibly other side Pokemon games. Unova introduced 155 more Pokemon as the fifth Generation.
Unknown is the 114th Pokemon in the sinnoh dex.
you can't go to sinnoh in Pokemon soul silver.