In: Chemistry
Draw the Fischer projection for the D-2-ketotetrose. Switch between an aldose and a ketose by clicking on "switch carbonyl group." Add or delete carbon atoms using the add (" +") or delete ("x") buttons. Clicking on a blue box once adds a hydrogen atom (H). Clicking on a blue box again toggles between H and OH.
The given molecule is a monosaccharide.
The molecule is a monosaccharide because tetrose represents a single molecule consisting of four-carbons.
The molecular formula of the given molecule is \(\mathrm{C}_{4} \mathrm{H}_{8} \mathrm{O}_{4}\)
The molecule is a monosaccharide that has the general formula \(\left(\mathrm{C}_{n} \mathrm{H}_{2 n} \mathrm{O}_{n}\right)\). The molecule is a Tetrose that is containing four carbon atoms. Substitute \(\mathrm{n}=4\) in the general formula. Therefore, the molecular formula of the given molecule is \(\mathrm{C}_{4} \mathrm{H}_{8} \mathrm{O}_{4}\)
The molecule is ketose. Hence, it has a ketone moiety present. The general structure of a ketose is as shown below:
Therefore, draw a four-carbon chain and attach a ketone moiety at the second position. Since the molecule has D-configuration, therefore, the OH attached to the last chiral carbon is present on the right side. C1, \( C 3 \), and C4 contain OH groups. Therefore, the structure of the molecule satisfying the molecular formula \(\mathrm{C}_{4} \mathrm{H}_{8} \mathrm{O}_{4}\) is as shown below:
The structure of the D-2-ketotetrose is as follows: