Alkenes and Alkynes

Unsaturated hydrocarbons with one C double bond

Alkenes

Unsaturated hydrocarbons w/ one C triple bond

Alkynes

Alkene formula

CnH2n

Alkyne formula

CnH2n-2

Alkenes also known as

Olefins

Alkynes also known as

Acetylenes

Select the longest continuous chain of carbons w/

C double or C triple bonds

Suffix -ene indicates number of carbons to name

Alkene

Suffix -yne indicates number of carbons to name

Alkyne

Carbon with multiple bonds on chain must be given

Lowest locant

If bond distance is equal, locant numbered from end

Close to first branch

Indicate locant position of multiple bonds using

Lower carbon number

More than one double bond present, number parent chain from

End nearest to first double bond

If C double and C triple bonds are equal distance the double bond receives

Low numbers

Cyclic Alkenes label _____ bond first then _____ in direction of lowest locant on substituent

c double bond, substituent

C double bonds are ___ hybridized

sp2

P orbital on each carbon makes Sideway overlap creating

Pi bond

Unsubstituted Alkenes consist of just

Hydrogens and carbons

Alkynes have ____ geometry

Linear

Alkenes have ___ geometry

Planar

C triple bonds are _____ hybridized

sp

The remaining 2 p orbitals on each carbon sideway overlap making

2 Pi bonds

Adds atoms or groups of atoms to each carbon of the multiple bond

Addition reaction

Additional of halogens to alkenes

Halogenation of Alkenes

Additional of water across C double bond, Converts an Alkene to alcohol

Hydration of alkenes

Strong acids to alkenes, acid generic form H-A

Addition of acids to alkenes

Hydrogenation addition of H to Alkene, conversion Alkene to alkene reduction

Addition of hydrogen alkene

High electrons in C double bonds alkenes readily react with _____ agents

Oxidizing

Reagents react by transferring oxygen atoms to

Organic substrate

Oxidant agents attack ______ of double bonds due to exposure

pi electrons

Alkenes react w/ ozone a reactive allotrope of oxygen, C doubke bond is cleaved and two carbonyl compounds result

Ozonolysis