Also, assign each stereogenic center as R or S. 3. You have a mixture containing the following three compounds. Given the pKa value for each compound, devise a method to separate the mixture. Additionally, draw resonance structures to explain the differences in pKa values. Match the functional group names with functional groups present in the molecules on the right.
Some compounds contain more than one functional group.
The biosynthesis of lanosterol, a member of the steroid family, is illustrated below. In a complicated enzyme catalyzed cascade, squalene oxide is transformed into lanosterol. A number of carbohydrates are pictured below. Identify whether the pairs of molecules listed are the same, constitutional isomers, enantiomers, or diastereomers. Predict the major and minor products of the following reaction and draw a detailed mechanism to account for the formation of each of these molecules.