Chemistry11OrganicChemistryIII

Name:Date:Block:

1. Cycloalkanes2. AromaticRings

Cycloalkanes

• Carbonatomsmaybondtoeachotherandforma_________________________________________

becomes

• GeneralFormula:

#ofCAtoms Prefix Cycloalkane Formula

1 Meth- 2 Eth- 3 Prop-

4 But-

5 Pent-

6 Hex-

7 Hept-

8 Oct-

9 Non-

10 Dec- StepstoNamingCycloalkanes:1. Theringthatcontainsthegreatestnumberofcarbonatomsisthe________________________

•

ParentChain=

2. Thecarbonatomsarenumberedeitherclockwiseorcounter-clockwise.•

3.4.Iftheringstructureisnotthelongestcontinuouscarbonchain,thenitisnamedasabranchwithprefix“cyclo”andendsin“yl.”

Parent:Branch:Compound:

Practice#1.

1. ParentChain.

2. Numbertheparentchain.

3. Namethebranches.

4. Namethecompound

Practice#2.

1. ParentChain.

2. Numbertheparentchain.

3. Namethebranches.

4. Namethecompound

Practice#3.

1. ParentChain.

2. Numbertheparentchain.

3. Namethebranches.

4. Namethecompound

AromaticRings

• Anaromatichydrocarbon,or_____________________________,isahydrocarbonwithsixcarbonatomsinaring

• Ithasthemolecularformula__________________• Theelectronsinabenzenemoleculearespreadoutacrossmultipleatoms,sothereis

morethanonewaytodrawitsLewisstructure

• canalsobedrawnas

StepstoNamingAromaticRings:

• Sameasothernamingprocedures!Except...parentchainiscalled:

Someorganiccompoundshavebenzeneasabranch.Inthiscase,thebranchnameis“_______________”Practice#1.

1. ParentChain.

2. Numbertheparentchain.

3. Namethebranches.

4. Namethecompound

Practice#2.

1. ParentChain.

2. Numbertheparentchain.

3. Namethebranches.

4. Namethecompound

Practice#3.

1. ParentChain.(rememberalkeneandalkynewillbemainparentchain)

2. Numbertheparentchain.

3. Namethebranches.

4. Namethecompound