Chapter 5.2, Problem 4PTS

Classify each of the following compounds as chiral or achiral.

What is the configuration of the two chiral centers in the following molecule?

How many chiral centers are present in this molecule? (a) (b) two (c) (d) one three none Ange

Assign the configuration of the following chiral compounds:

Cortisone is a compound that is used as an anti-inflammatory drug to treat 2) diseases like arthritis. Cortisone is a steroid which contains four rings (A, B, C and D), and has the following structure: он "OH Cortisone Provide the data to complete each of the following statements: The total number of chiral carbons (stereocentres) in Cortisone is The maximum number of stereoisomers possible is: The degree of unsaturation (IHD) of Cortisone is The total number of 2° hydrogens is The ring fusion between rings B and C is trans or cis? The absolute configuration of the carbon with * in the structure is The total number of n bonds is

The number of chiral centers in progesterone (shown below) is C-CH3

Identify the number of chiral centers in the following compound. OH 0 1 2 3 O None of the choices are correct. Hint How many carbons have four different groups?

Identify the chiral centers in the following molecule and label each as r and s.

c) For the following compound identify how many chiral carbons present and how many isomers are possible. HO C4H6NOF OH OH d) Figure out elements of unsaturation for the following compound