Skip to main content

My Courses

AI Tools Channels Home

5. Chirality

Fischer Projection

5. Chirality

Fischer Projection

Guided videos.

Learn with Johnny

Go to the course

Introduction to different projections.

Introduction to different projections.

Johnny Betancourt

How to convert Fischer projections into bondline structures

How to convert Fischer projections into bondline structures

Johnny Betancourt

Convert the following Fischer projection into bondline structure.

Convert the following Fischer projection into bondline structure.

Johnny Betancourt

Practice this topic

Multiple Choice

Draw the following aldotetrose in the proper Fischer projection.

Textbook Question

Convert the Fischer projection to a perspective formula.

<IMAGE>

Textbook Question

Convert the Fischer projection to a perspective formula.

<IMAGE>

Textbook Question

Convert the following perspective formulas to Fischer projections. a.

Textbook Question

For each Fischer projection, make a model. 1. draw the mirror

. 2. determine whether the mirror

is the same as, or different from, the original structure. 3. draw any mirror planes of symmetry that are apparent from the Fischer projections. c.

Textbook Question

For each set of examples, make a model of the first structure, and indicate the relationship of each of the other structures to the first structure. Examples of relationships: same compound, enantiomer, structural isomer. a.

Textbook Question

Convert the following Fischer projections to perspective formulas a.

Textbook Question

Convert the line-angle drawings into Fischer projections. (b)

Textbook Question

Convert the line-angle drawings into Fischer projections. (c)

Textbook Question

Convert the line-angle drawings into Fischer projections.

(a) <IMAGE>

Textbook Question

Draw Fischer projections of the following molecules. (a)

Textbook Question

Draw Fischer projections of the following molecules. (b)

Textbook Question

In this attempt to convert the line angle drawing of d-erythrose (shown) to the Fischer projection (shown), by viewing it from a certain direction (shown), a mistake was made. What was the mistake?

Textbook Question

Draw Fischer projections of the following molecules.

(c) <IMAGE>

Textbook Question

Convert the following perspective formulas to Fischer projections.

c. <IMAGE>

d. <IMAGE>

Textbook Question

(a) There is only one ketotriose, called dihydroxyacetone. Draw its structure.

(b) There is only one aldotriose, called glyceraldehyde. Draw the two enantiomers of glyceraldehyde.

Textbook Question

For each set of examples, make a model of the first structure, and indicate the relationship of each of the other structures to the first structure.

Examples of relationships: same compound, enantiomer, structural isomer.

c. <IMAGE>: <IMAGE>, <IMAGE>, <IMAGE>

Textbook Question

Which of the following compounds are chiral?

Draw each compound in its most symmetric conformation, star (*) any asymmetric carbon atoms, and draw any mirror planes.

Label any meso compounds. You may use Fischer projections if you prefer.

e. (R,R)-2,3-dibromobutane

f. <IMAGE>

Textbook Question

Draw a Fischer projection for each compound.

Remember that the cross represents an asymmetric carbon atom, and the carbon chain should be along the vertical, with the IUPAC numbering from top to bottom.

e. (R)-glyceraldehyde, <IMAGE>

Textbook Question

a. Are d-erythrose and l-erythrose enantiomers or diastereomers? b. Are l-erythrose and l-threose enantiomers or diastereomers?

Textbook Question

For each pair, give the relationship between the two compounds. Making models will be helpful. e.

Textbook Question

For each structure, 1. draw all the stereoisomers. 2. label each structure as chiral or achiral. 3. give the relationships between the stereoisomers (enantiomers, diastereomers). a.

Textbook Question

Give the stereochemical relationships between each pair of structures.

Examples are same compound, structural isomers, enantiomers, diastereomers.

Which pairs could you (theoretically) separate by distillation or recrystallization?

a. <IMAGE>, <IMAGE>

b. <IMAGE>, <IMAGE>

Textbook Question

Are the following pairs identical, enantiomers, diastereomers, or constitutional isomers?

c. <IMAGE>

d. <IMAGE>

Textbook Question

For each pair, give the relationship between the two compounds. Making models will be helpful.

g. <IMAGE> and <IMAGE>

Showing 25 of 25 practice