Question

Give L-fucose ("Chemical Connections: A, B, AB, and O Blood Group Substances") a name incorporating the prefix deoxy- that shows its relationship to galactose.

Short answer

Answer: The appropriate name for L-fucose is "6-deoxy-L-galactose."

Step-by-step solution

Understand the structure of L-fucose and galactose

L-fucose is a monosaccharide with the chemical formula C6H12O5, and galactose is a monosaccharide with the chemical formula C6H12O6. L-fucose differs from galactose in that it has one less oxygen atom in its structure.

Identify the relationship between L-fucose and galactose

The relationship between L-fucose and galactose can be seen in the fact that L-fucose has one less oxygen atom (it is a deoxy sugar) compared to galactose. This relationship can be represented by the prefix "deoxy-", which signifies the loss of an oxygen atom.

Give L-fucose a name incorporating the prefix "deoxy-"

We can give L-fucose a name that incorporates the prefix "deoxy-" and shows its relationship to galactose. The appropriate name is "6-deoxy-L-galactose," indicating that it is a deoxy sugar related to galactose, specifically missing an oxygen atom at the 6th carbon position.