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Lengthening Carbohydrate Chains with HCN

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https://joechem.io/videos/199 for video on jOeCHEM and attached worksheet + solution (below video on jOeCHEM aka the link). https://joechem.io/videos/199 for video on jOeCHEM and attached worksheet + solution (below video on jOeCHEM aka the link) In this video, we'll tackle how to lengthen carbohydrate chains (aldoses specifically), and if that sounds scary I promise it's not. Why, you might ask? Well because you know all the chemistry to do it! We'll use HCN to form a cyanohydrin, and then we'll reduce the nitrile to an aldehyde using DIBAL.

Tags: carbohydrates, free

All Videos:

10. Lengthening Carbohydrate Chains with HCN

1. Overview of Carbohydrates

2. Drawing Fischer Projections & Terminology of D and L Sugars

3. Hemiacetal Formation with Sugars

4. Haworth Projections & Mutarotation with Examples

5. Ether and Ester Formation with Carbohydrates

6. Epimers and Epimerization

7. Oxidizing Sugars Mildly & Aggressively

8. Reducing Sugars with NaBH4

9. Making and Naming Glycosides

11. Shortening Carbohydrates with the Wohl Degradation

12. Forming Disaccharides via Glycosidic Linkages

13. Identifying Meso Sugars After Lengthening + Oxidizing (Example)

Lengthening Carbohydrate Chains with HCN - jOeCHEM