Question

why is the first one S but the second one R?

Indicate the stereochemical configuration for the tetrahedral centers shown below. - O OR O not a stereocenter Site 1 Site 1 not a stereocenter Site 2 000 Correct not a stereocenter

Answer 1

Answer:- - ah 0_ R- Rotation Hence, 1 st Sirotation s u . but 4th position atteuhed to wedge hence R changes to S- Configuration site) - an uc site-2 For site (1. O3 s Rotation thence, Ans is R-rotation, but 4th position on wedge in site-2 two atoms hence S=> R rotation are same hence, it isn't stereo center. I In case of site ci) we give and posh to Isopropyl because One carbon atom attached to 26cy) groups but in Case of god position only I (cz) or Carbon atom cattuched next to third position hence we got R notution.

In this case we have to see the number of groups. disctly attaned to next of that carbon centre. The fore we got and post towards Isopropyl group.