C1: 5: The molecule below is cholesterol. For each of the eight numbered carbons identify whether they are chiral or achiral (write either chiral or achiral as your answer). C2: C6: HO 1 C3: C7: 2 3 cholesterol C4: C8:

Identify the chiral centers (mark with *) of the molecule below and assign the absolute configuration of the chiral centers.

7) The following compound has how many chiral centers? CH3 CH3 A) 0 В) 1 C) 2 D) 3 E) 4

For this question, redraw the structure and label each chiral center clearly. You will need to upload your answer when finished. For the following molecules assign the configuration at each chiral center as R or S. Br 2 OCH3 F

Highlight each chiral center in the following molecule. If there are none, then check the box under the drawing area. HO There are no chiral centers. CI X 3

Carbon is not the only element that can function as a chiral center. In Problem 5.6 we saw an example in which a phosphorus atom is a chiral center. In such a case, the lone pair is always assigned the fourth priority. Using this information, assign the configuration of the chiral center in this compound: O R S

Identify each molecule as Chiral or Achiral and write the number of Asymmetric carbons present in each chiral molecules. Give explanation.

1. Identify the configuration of each chiral center in the following compounds. Draw the enantiomer for each of the following compounds. a) b) c) ОН ΘΗ OH H CH₂CH₂OH 1