reactions of hydrocarbons - mrahurley.wikispaces.com of... · 3. reactions of ane, enes and...

4
3. Reactions of ane, enes and ynes.notebook 1 February 28, 2013 Sep 122:42 PM Reactions of Hydrocarbons Learning Goals: I will be able to draw and name the products of the reactions that alkanes, alkenes, alkynes & aromatics undergo. I will be able to apply Markovnikov's Rule to the reactions of alkenes. Sep 122:42 PM All Hydrocarbons will Undergo Combustio n: Combustion reactions: Complete: CH 4 + 2O 2 CO 2 + 2H 2 O Incomplete: CH 4 +O 2 CO 2 + CO + C + H 2 O Let's make some acetylene gas (ethyne gas)

Upload: donga

Post on 27-Mar-2018

219 views

Category:

Documents


4 download

TRANSCRIPT

Page 1: Reactions of Hydrocarbons - mrahurley.wikispaces.com of... · 3. Reactions of ane, enes and ynes.notebook 1 February 28, 2013 Sep 122:42 PM Reactions of Hydrocarbons Learning Goals:

3. Reactions of ane, enes and ynes.notebook

1

February 28, 2013

Sep 12­2:42 PM

Reactions of Hydrocarbons

Learning Goals:I will be able to draw and name the products of the reactions that alkanes, alkenes, alkynes & aromatics undergo.

I will be able to apply Markovnikov's Rule to the reactions of alkenes.

Sep 12­2:42 PM

All Hydrocarbons will Undergo Combustion:• Combustion reactions: 

­ Complete: CH4 + 2O2    CO2 + 2H2O­ Incomplete: CH4 + O2   CO2 + CO + C + H2O

• Let's make some acetylene gas (ethyne gas)

Page 2: Reactions of Hydrocarbons - mrahurley.wikispaces.com of... · 3. Reactions of ane, enes and ynes.notebook 1 February 28, 2013 Sep 122:42 PM Reactions of Hydrocarbons Learning Goals:

3. Reactions of ane, enes and ynes.notebook

2

February 28, 2013

Oct 3­12:31 PM

• One or more of the hydrogen atoms can be replaced by a halogen• You can then add other functional groups by replacing the halogen• Requires heat, UV light or a catalyst (not easily done with alkanes! But is easier with aromatics)

Alkanes & Aromatics Undergo Substitution Reactions

Sep 12­2:45 PM

Alkenes & Alkynes Undergo Addition Reactions:• Much greater chemical reactivity than alkanes• Easily undergo addition reactions at room temperature (called 

addition reaction b/c there is no loss of hydrogen atom(s))

1. Halogenation (with Br2, Cl2, etc)

2.Hydrogenation (with H2)

3. Hydrohalogenation (with HBr, HCl, etc) ­ Alkyl Halides

4. Hydration (with H2O) ­ Alcohols

Page 3: Reactions of Hydrocarbons - mrahurley.wikispaces.com of... · 3. Reactions of ane, enes and ynes.notebook 1 February 28, 2013 Sep 122:42 PM Reactions of Hydrocarbons Learning Goals:

3. Reactions of ane, enes and ynes.notebook

3

February 28, 2013

Sep 12­2:48 PM

Markovnikov’s Rule:When a hydrogen halide (e.g. HBr) or water (HOH) is added to an alkene  the hydrogen atom will bond to the carbon atom within the multiple bond that already had more hydrogen atoms.  

Example 1: Draw the compound that will be produced when water reacts with hex­1­ene?

Sep 12­2:49 PM

Example 2: What compound will be produced when hydrogen chloride reacts with 3­methylpent­2­ene?

Page 4: Reactions of Hydrocarbons - mrahurley.wikispaces.com of... · 3. Reactions of ane, enes and ynes.notebook 1 February 28, 2013 Sep 122:42 PM Reactions of Hydrocarbons Learning Goals:

3. Reactions of ane, enes and ynes.notebook

4

February 28, 2013

Sep 12­2:49 PM

Today's Tasks: 

Worksheet