Exercise 5 | Carbohydrates
Organic Chemistry 3 - Exercise 5
The objective of this exercise is to determine the structure of D-xylose.
D-xylose is an aldopentose, which gives an optically inactive product after its oxidation with dilute nitric acid.
The Kiliani-Fischer synthesis on D-xylose leads to two different hexoses, optically active after their oxidation with dilute nitric acid.
Draw the structure of D-xylose.
Kiliani-Fischer synthesis:
D-xylose is an aldopentose:
D-xylose is D configuration:
Its oxidation with dilute nitric acid gives an optically inactive product:
The Kiliani-Fischer synthesis on D-xylose leads to two different hexoses, optically active after their oxidation with dilute nitric acid: