Gingerol is a compound found in fresh ginger that activates spice receptors on the tongue, giving raw ginger a hot taste. The skeletal formula of gingerol is shown. (i) Give the molecular formula of gingerol. (1) ................................................................................................................................................................................................................................................................................ (ii) The OH group is shown attached to the carbon chain by a wedge-shaped bond. Suggest why the bond between the carbon chain and the OH group is shown as a wedge. (2) ................................................................................................................................................................................................................................................................................
Exam No：wch15-01-que-20240113 Year：2024 Question No：15(a)
Answer:
An answer that makes reference to the following points:
- \(\mathrm{C}_{17} \mathrm{H}_{26} \mathrm{O}_{4}\)
An answer that makes reference to the following points:
- the OH is attached to a chiral carbon / gingerol exists as optical isomers
- The wedge shows the stereochemical arrangement / shows the shape of the molecule at the carbon (it is attached to)
- \(\mathrm{C}_{17} \mathrm{H}_{26} \mathrm{O}_{4}\)
An answer that makes reference to the following points:
- the OH is attached to a chiral carbon / gingerol exists as optical isomers
- The wedge shows the stereochemical arrangement / shows the shape of the molecule at the carbon (it is attached to)
Knowledge points:
20.Organic Synthesis
Solution:
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