Similar Questions for How To Find Chiral Centers In A Ring from Yahoo AnswersQuestionAnswer
look for the strusture at following link
etheral oxygen and amide groups are present. the C atom having all the four groups different form each othe, is called chiral C. and i think only one carbon [attached to O, benzene ring, other CH2 and H(not shown)] is chiral, c if u can find another.
Since cholesterol isn't symmetrical, any carbon that has four different substituents attached is a chirality center. In comparing substituents, you may have to extend the comparison to one or more carbons. Keep going until you find a difference. Don't stop at a CH2 on either side.
Wikipedia gave the IUPAC name for gingerol as
This name gives gingerol as the s isomer.
The chiral centre is at the carbon 5 atom, bearing the alcohol group.
Working from there, the 4 groups attached to this carbon are
a pentyl chain,
a hydrogen atom,
an alcohol group (hydroxy)
the substituted phenyl ring attached to a short alkyl chain and ketone group; (4-hydroxy-3-methoxyphenyl)-3-butanone
Note these names of the groups are different from the name for the molecule, since the molecule counts from carbon 1, thats the one attached to the phenyl ring, but you are asking for substituents to the chiral carbon (carbon 5)