(a) Interpretation: The classification of the given monosaccharide as an aldo-or keto- triose, tetrose, pentose, or hexose is to be stated. Concept introduction: Carbohydrates are the polyhydroxy aldehydes or ketones or in other words, the substances that give polyhydroxy aldehydes or ketones are called carbohydrates. They can be classified on the basis of number of carbon atoms and referred as triose, tetrose, pentose and hexose when it contains three, four, five and six carbon atoms respectively. Monosaccharide is the polyhydroxy aldehyde or ketone that contains only one aldehyde or ketone unit. Monosaccharide does not undergo hydrolysis.

Question

Select the correct reagent to accomplish the first step of this reaction. Then draw a mechanism on the Grignard reagent using curved arrow notation to show how it is converted to the final product. 4th attempt Part 1 (0.5 point) Select the correct reagent to accomplish the first step of this reaction. Choose one: OA Mg in ethanol (EtOH) OB. 2 Li in THF O C. Li in THF D. Mg in THF O E Mg in H2O Part 2 (0.5 point) Br Part 1 Bri Mg CH B CH, 1 Draw intermediate here, but no arrows. © TE See Periodic Table See Hint See Hint ין H

Answer 1

Question

Chapter 17, Problem 17.21E

Interpretation Introduction

(a)

Interpretation:

The classification of the given monosaccharide as an aldo-or keto- triose, tetrose, pentose, or hexose is to be stated.

Concept introduction:

Carbohydrates are the polyhydroxy aldehydes or ketones or in other words, the substances that give polyhydroxy aldehydes or ketones are called carbohydrates. They can be classified on the basis of number of carbon atoms and referred as triose, tetrose, pentose and hexose when it contains three, four, five and six carbon atoms respectively. Monosaccharide is the polyhydroxy aldehyde or ketone that contains only one aldehyde or ketone unit. Monosaccharide does not undergo hydrolysis.

Interpretation Introduction

(b)

Interpretation:

The classification of the given monosaccharide as an aldo- or keto- triose, tetrose, pentose, or hexose is to be stated.

Concept introduction:

Carbohydrates are the polyhydroxy aldehydes or ketones or in other words the substances that give polyhydroxy aldehydes or ketones are called carbohydrates. They can be classified on the basis of number of carbon atoms and referred as triose, tetrose, pentose and hexose when it contains three, four, five and six carbon atoms respectively. Monosaccharide is the polyhydroxy aldehyde or ketone that contains only one aldehyde or ketone unit. Monosaccharide does not undergo hydrolysis.

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