Fischer projection

When drawn in this order, the Fischer projections of the aldohexoses follow a pattern.

For cyclic compounds, however, use of the Fischer projection is complicated and not common.

This means an aldose can exist in either a form or form of a Fischer projection.

The Fischer projection is mostly used for linear monosaccharides.

He developed the Fischer projection, a symbolic way of drawing asymmetric carbon atoms.

A Fischer projection is a simplified way to show the stereochemistry around a stereocenter.

The following tables shows the Fischer projections of selected monosaccharides (in open-chain form), with their conventional names.

A Fischer projection is used to differentiate between L- and D- molecules.

Fischer projections should not be confused with Lewis structures, which do not contain any information about three dimensional geometry.

The use of Fischer projections in non-carbohydrates is discouraged, as such drawings are ambiguous when confused with other types of drawing.

The groups on the right hand side of a Fischer projection are equivalent to those below the plane of the ring in Haworth projections.

Fischer projections were originally proposed for the depiction of carbohydrates and used by chemists, particularly in organic chemistry and biochemistry.

In a Fischer projection, all horizontal bonds project toward the viewer, while vertical bonds project away from the viewer.

(see Fischer projection).

Again, this can be understood by taking the Fischer projection of either acid and looking at it upside down-the configuration is now switched at every carbon.

In the Fischer projection, two mirror-image isomers differ by having the positions of all chiral hydroxyls reversed right-to-left.

Nonetheless, the Fischer projection is a simple way of depicting multiple sequential stereocenters that does not require or imply any knowledge of actual conformation:

On a Fischer projection, the penultimate carbon of D sugars are depicted with hydrogen on the left and hydroxyl on the right.

The Fischer projection is a systematic way of drawing the skeletal formula of an open-chain monosaccharide so that each stereoisomer is uniquely identified.

Emil Fischer developed the Fischer projection technique for viewing 3-D molecules on a 2-D sheet of paper:

Since Fischer projections depict the stereochemistry (three-dimensional structure) of a molecule, they are very useful for differentiating between enantiomers of chiral molecules.

Other methods for depicting molecules are the Fischer projection, the Haworth projection and the Natta projection.

This mnemonic also yields the correct structures, if one can manage to remember the proper alternations of the Fischer projections used to represent their configurations in two dimensions.

When drawn in the Fischer projection the erythro isomer has two identical substituents on the same side and the threo isomer has them on opposite sites.

When the letters "sn" appear in the nomenclature, by convention the hydroxyl group of the second carbon of glycerol (sn-2) is on the left on a Fischer projection.