In this video lecture, you will understand the origin of D/L System of assigning Relative Configuration to Stereoisomers. The discussion also includes the old D/L system by Fischer and also the updated modification by Rosanoff in 1906. The synthetic correlation relative to Glyceraldehyde is discussed here as well. The ambiguity with the D/L Configuration is explained as well.
Prerequisites: Knowledge of Fischer Projections in Stereochemistry of Carbohydrates.