Topic 53: Fischer projections and stereochemistry

53.1What is a Fischer projection? What aspects are critical in drawing it?
 
53.2How is a Fischer projection representable as wedges and dashes?
 
53.3What is the easiest way to assign R or S to a stereocenter represented by a Fischer projection?
 
53.4What happens to the chiral designation if a Fischer projection is rotated 90o? 180o?
 
53.5What do the designations D and L mean?
 
53.6Why are D and L more useful than R and S in carbohydrate chemistry?
 
53.7What is the easiest way to tell a D sugar from an L sugar?
 
53.8What is the structure of D-glyceraldehyde?
 

Topic 54: Carbohydrates: D-aldoses and D-ketoses

54.1What is the general formula of a carbohydrate?
 
54.2Where does this name come from?
 
54.3What is an aldose?
 
54.4What is a ketose?
 
54.5What are the structures of D-erythrose and D-threose?
 
54.6What is an easy trick to remembering which is which?
 
54.7What is the structure of D-ribose?
 
54.8Where have you of something-“ribo”-something before?
 
54.9What is the structure of D-glucose?
 
54.10Structurally, relative to D-glucose, what is notable about D-mannose and D-galactose?
 
18 questions
472 questions for Organic II

472 Questions for Organic II

Dearest Student. This web page is a set of questions I call Detailed Intended Learning Outcomes For Organic Chemistry (Part II). Some time ago I asked myself, "Bob, what do you think are the key questions that you hope students will be able to answer after taking Chemistry 248 at St. Olaf College?" So here you have them. Some are very simple; some require more thought. All are good questions to be thinking about as you read, discuss, and master the practical aspects of organic chemistry. They are discussion starters and review tips. There are no answers here (though there are some clues). The questions are here to help you focus on what's important (to me, at least!) and organize your learning process. The questions are grouped into topics. Bite-size chunks. Take them a few at a time. Don't feast on them all at one sitting!

(preliminary version 2021.01.15 feeback: Bob Hanson)