Blackboard Quiz today due midnight

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Blackboard Quiz today due midnight
Turn off pop-up killers! Exam 1 postponed to
Monday 9/26
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IUPAC Naming System

• Find longest carbon chain. Base name is same as
  n-alkane of that length.
• If there is more than one way to find the longest
  chain use the one that has more substituents.
• Compare to the parent n-alkane. Wherever H has
  been replaced what is replacing it is considered
  a substituent and named as a prefix to th ebase
  name
• X halo B. R alkyl
• Use a number in front of the substituent prefix
  to indicate which carbon of the chain it is
  attached to. (If necessary) Number the chain from
  the end closer to the substituent. (Separate
  numbers from words with hyphens)
• Rules for multiple substituents
• Different substituents list in alphabetical order
• Same substituents indicate number of with prefix
  di, tri, tetra, penta, etc.
• Each substituent gets a number. (When needed!)
• Number the chain from the end closer to the
  nearest substituent.
• For ties number from end closer to 2nd
  substituent, then 3rd etc
• Still a tie? The number from end closer to
  alphabetical substituent

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IUPAC Naming System

• Find longest carbon chain. Base name is same as
  n-alkane of that length.
• If there is more than one way to find the longest
  chain use the one that has more substituents.
• Compare to the parent n-alkane. Wherever H has
  been replaced what is replacing it is considered
  a substituent and named as a prefix to th ebase
  name
• X halo B. R alkyl
• Use a number in front of the substituent prefix
  to indicate which carbon of the chain it is
  attached to. (If necessary) Number the chain from
  the end closer to the substituent. (Separate
  numbers from words with hyphens)
• Rules for multiple substituents
• Different substituents list in alphabetical order
• Same substituents indicate number of with prefix
  di, tri, tetra, penta, etc.
• Each substituent gets a number. (When needed!)
• Number the chain from the end closer to the
  nearest substituent.
• For ties number from end closer to 2nd
  substituent, then 3rd etc
• Still a tie? The number from end closer to
  alphabetical substituent

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IUPAC Naming System

• Find longest carbon chain. Base name is same as
  n-alkane of that length.
• If there is more than one way to find the longest
  chain use the one that has more substituents.
• Compare to the parent n-alkane. Wherever H has
  been replaced what is replacing it is considered
  a substituent and named as a prefix to th ebase
  name
• X halo B. R alkyl
• Use a number in front of the substituent prefix
  to indicate which carbon of the chain it is
  attached to. (If necessary) Number the chain from
  the end closer to the substituent. (Separate
  numbers from words with hyphens)
• Rules for multiple substituents
• Different substituents list in alphabetical order
• Same substituents indicate number of with prefix
  di, tri, tetra, penta, etc.
• Each substituent gets a number. (When needed!)
• Number the chain from the end closer to the
  nearest substituent.
• For ties number from end closer to 2nd
  substituent, then 3rd etc
• Still a tie? The number from end closer to
  alphabetical substituent

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Branched Alkyl Groups
Naming three- or four-carbon alkyl groups is more
complicated because the parent hydrocarbons have
more than one type of hydrogen atom. For example,
propane has both 10 and 20 H atoms, and removal
of each of these H atoms forms a different alkyl
group with a different name, propyl or isopropyl.
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Butyl Groups
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Classifying Carbon Atoms

• Carbon atoms in alkanes and other organic
  compounds are classified by the number of other
  carbons directly bonded to them.

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Classifying H atoms

• Hydrogen atoms are classified as primary (10),
  secondary (20), or tertiary (30) depending on the
  type of carbon atom to which they are bonded.

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Butyl Groups
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Cycloalkanes
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Monosubstituted Cycloalkanes
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Large substituents?
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Disubstituted Cycloalkanes
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Bicyclic Alkanes
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Polycyclic alkanes
Some organic compounds are identified using
common names that do not follow the IUPAC system
of nomenclature. Many of these names were given
long ago before the IUPAC system was adopted, and
are still widely used. Additionally, some names
are descriptive of shape and structure, like
those below