Problem: Identify the indicated hydrogens in the molecules below as pro-R or pro-S.cysteineHa: a) pro-R     b) pro-SHb: a) pro-R     b) pro-S2-deoxyribose Ha: a) pro-R     b) pro-SHb: a) pro-R     b) pro-SHc: a) pro-R     b) pro-SHd: a) pro-R     b) pro-S

FREE Expert Solution

For S and R configuration:

When H is at the back (dash)

  • → counterclockwise
  •  clockwise

Higher atomic numberhigher priority (1- highest, 4 - lowest)

When H is not at the back (flipped)

  • → clockwise
  •  counterclockwise
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Problem Details

Identify the indicated hydrogens in the molecules below as pro-R or pro-S.

cysteine

Ha: a) pro-R     b) pro-S

Hb: a) pro-R     b) pro-S


2-deoxyribose 

Ha: a) pro-R     b) pro-S

Hb: a) pro-R     b) pro-S

Hc: a) pro-R     b) pro-S

Hd: a) pro-R     b) pro-S





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