Deoxyal cans

Deoxyaldose and "normal" aldose in comparison
The deoxyaldose fucose [in the Fischer projection (open representation)] contains one less hydroxyl group in the 6-position than the “normal” aldose, here galactose (below).
For comparison, a "normal" aldose, here galactose, in the Fischer projection (open representation)

Deoxyaldoses are aldoses in which one or, more rarely, several hydroxyl groups have been replaced by hydrogen atoms. Deoxyaldoses are usually not free, but glycosidically bound . Either a primary or a secondary hydroxyl group is missing in the aldoses . The most common 6-deoxyaldose is L - rhamnose (6-deoxy- L- mannose). L - fucose (6-deoxy- L- galactose) is found in the blood group substances . Methyl ethers of methyllose are also found in nature , e.g. B. D - digitalose (6-deoxy-3- O- methyl- D- galactose) contained in drugs .

Deoxyribonucleic acid

The most important deoxyaldose is chemically bound in the deoxyribonucleic acids (DNA), 2-deoxy- D -ribose (2-deoxy- D -erythropentose) with a “missing” secondary hydroxyl group.

Individual evidence

^ Peter Nuhn: Naturstoffchemie , S. Hirzel Wissenschaftliche Verlagsgesellschaft, Stuttgart 1990, ISBN 3-7776-0473-9 , p. 578.
↑ The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals , 9th Edition (Merck & Co., Inc.), Whitehouse Station, NJ, USA, 1976; ISBN 0-911910-26-3 , p. 417.

[Nuhn-1] Peter Nuhn: Naturstoffchemie , S. Hirzel Wissenschaftliche Verlagsgesellschaft, Stuttgart 1990, ISBN 3-7776-0473-9 , p. 578.

[MERCK_Index-2] The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals , 9th Edition (Merck & Co., Inc.), Whitehouse Station, NJ, USA, 1976; ISBN 0-911910-26-3 , p. 417.