13.2 Chiral Molecules

13.2 Chiral Molecules

  • Similar to sugar, tagatose is found in fruit.
  • Everything has a mirror image.
  • Your thumbs are not on the same side.
    • If you place your right hand over your left, you can't match up the parts of your hands.
  • There are mirror images on the right hand.
  • The thumbs and little fingers can be matched, but then the palms or backs of your hands are facing each other.
    • The mirror images on your hands cannot be superimposed on each other.
  • Left and right shoes are not the same.
  • When we think about how hard it is to put a glove on our right hand, use a left-handed scissors, or put a shoe on our left foot, we realize that mirror images are very different.
  • Ibuprofen, penicillin, and epinephrine are some of the important compounds in medicine.
    • Most of the compounds in chemistry are not straight.
  • A plain glass is achiral, but everyday objects such as gloves and shoes are not.
  • The bromine and chlorine atoms are on opposite sides of the mirror images.
  • We can't align all four atoms at the same time because 3-methylhexane has a chiral carbon.
  • The mirror images are the enantiomers of a molecule.
    • The enantiomers of a molecule can't be superimposed on each other.
  • The structures are the same.
  • There are mirror images of an achiral compound.
  • toothpicks are placed into a black gumdrop to make the corners of a triangle.
  • The mirror image of the original model can be used to make a second model.
    • Try to superimpose it on the other model by rotating it.
  • One orange gumdrop should be replaced with a purple gumdrop.
    • There are four different colors of gumdrops.
    • Replacing one orange gumdrop with a purple one on the second model will make its mirror image.
    • Try to superimpose it on the other model by rotating it.
  • It is used in hair care products.
  • Ibuprofen can be used to relieve pain.
  • The red C has groups of atoms attached to it.
    • The carbon in red has the same two substituents.
  • There are four different groups of carbon.
  • The penicillamine is used in the treatment of arthritis.
  • A simplified system for drawing isomers was created by Emil Fischer.
    • He received the chemistry prize for his contributions.
  • The bonds that project backward from a carbon atom are represented by vertical lines and horizontal lines.
    • In this model, a carbon atom is represented by the intersection of vertical and horizontal lines.
  • The middle carbon is the only chiral carbon for the simplest aldose.
  • The group is drawn at the bottom.
  • There are two ways in which OH groups can be drawn.
    • The l isomer is the OH group drawn to the left of the atom.
  • There are horizontal lines for bonds that project forward and vertical lines for bonds that point away in the projection.
  • The OH group is drawn to the left of the carbon.
  • The OH group is drawn to the right of the carbon.
  • The OH group furthest from the top of the projection is drawn to the right.
  • M13_TIMB8860_13_GE_C13.indd 470 has a different biological effect than the other one.
  • One enantiomer has a certain smell, and another has a completely different smell.
  • The scent of spearmint and caraway seeds is caused by Adrenaline and carvone.
    • Carvone has two enantiomers, one of which is in the carbon ring.
  • Our senses of smell and taste respond to two different odors.
  • A substance used to treat Parkinson's disease is l-dopa, which is a single active enan converted to dopamine in the brain.
  • Parkinson's disease is related to the chiral receptor.
  • Carbohydrates naproxen and Ibuprofen are anti- inflammatory drugs that are used to relieve pain.
    • The benefits of producing only the active enantiomer include using a lower dose, enhancing activity, reducing interactions with other drugs, and eliminating possible harmful side effects from the enantiomer.
  • The active form of image is inactive.
  • If there is a carbon that is chiral, indicate it.