Base Equilibrium

CARBOHYDRATES NOMENCLATURE

Wize Organic Chemistry Lecture Series, 2017 Presented by: Spencer

CARBOHYDRATES NOMENCLATURE CHAIN LENGTH, ALDOS E /KE TO S E , D/L Fill in the blanks

Chain length: 1. _______ose, 2. _______ose, 3. _______ose, 4. _______ose, 5. _______ose

Aldose or ketose: 1. ______ose, 2. ______ose, 3. ______ose, 4. ______ose, 5. ______ose D or L: 1. ______, 2. ______, 3. ______, 4. ______, 5. ______

CARBOHYDRATES NOMENCLATURE CHAIN LENGTH, ALDOS E /KE TO S E , D/L

Name the following by: 1) chain length, 2) Aldose/ketose, 3) D/L

1. 2. 3. Key Idea: Arrange the Fischer projection with the highest oxidation state carbon at the top

CARBOHYDRATES NOMENCLATURE CHAIN LENGTH, ALDOS E /KE TO S E , D/L

Label the following by: 1) chain length, 2) Aldose/Ketose, 3) Pyranose/Furanose

1. 2. 3. Key Idea: Pyranose – 6-membered ring, Furanose – 5-membered ring (remember, Fu – Five)

CARBOHYDRATES NOMENCLATURE GLYCOSIDIC BONDS, α/ β ANOME R IC C ARBO NS

Key Idea: alpha is opposite

Key Idea: beta is same

What is the relationship between these two compounds: _______________

Key Idea: Glycosidic bonds occur at the anomeric carbon

CARBOHYDRATES NOMENCLATURE GLYCOSIDIC BONDS, α/ β ANOME R IC C ARBO NS Label the following glycosidic bonds