Chapter #1: Flashcards
(16 cards)
What is the organic chemistry IUPAC name for a hydrocarbon carbon, with no double/triple bonds, or funtional groups?
Alkane
Example = CH4 = methane.
C5H12 = pentane.
CH4 is called:
Methane
C2H6 is called:
Ethane
C3H8 is called:
Propane
C4H10 is called:
Butane
C5H12 is called:
Pentane
C6H14 is called:
Hexane
C7H16 is called
Heptane
C8H18 is called:
Octane
C9H20 is called:
Nonane
C10H22 is called:
Decane
List the IUPAC naming steps:
- Find and name the longest carbon chain.
- Identify and name groups attached to the chain.
- Numebr carbons in the chain, startign with the side closest to a substituent.
- Assign the proper number to each attached group.
- Assemble the name, in alphabetical order of groups, (di, tri, mono prefixes are not considered in alphabetizing)
In which of the following will the two highest priority groups be seen on the same side of an alkene?
a. E alkene.
b. Z alkene.
c. R alkene.
d. S alkene.
b - Z alkene.
not a - E alkene has highest priority groups on opposite sides.
not c/d - R and S configurations refer to the orientation of atoms around the chiral center of a molecule - there is no chiral center in an alkene structure.
A chiral center is:
A stereocenter carbon with 4 different groups attached to it, with no plane of symetry.
A chemistry makes a mistake in their procedure, and adds an excess of hydrobromic acid into a solution containing 40 mM of a molecule with one chiral center. Which of the following is true regarding this molecule?
a. This molecule will be able to rotate the plane of a polarized light.
b. The molecule will be a strong electrophile.
c. This molecule will be able to fold into a chair conformation, reaching a stable form.
d. This molecule will be optically inactive.
a - this molecule will be able to rotate the plane of polarized light.
Chiral center = optically active.
Optically active = able to rotate the plane of polarized light.
