2. Organic Reactions Flashcards Preview

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Flashcards in 2. Organic Reactions Deck (14):
1

Alkene + Halogen --> CH2=CH2+ Br2

di-halogenoalkane (CH2BrCH2Br) -called Halogenation Roomtemp in the dark

2

Alkene + Hydrogen halide --> CH2=CH2+ HCl

halogenoalkane (CH3CH2Cl) Normal conditions

3

Alkene + Hydrogen --> CH2=CH2 +H2

Alkane (CH3CH3) - Called hydrogenation Catalyst: Nickel High temp 150 degrees , High Pressure

4

Alkene + steam --> CH2=CH2 +H2O

Alcohol(CH3CH2OH) - Hydration Catalyst: H3PO4 High temp , High Pressure

5

addition Polymerisation

(200deg,highpressure)Free radical catalyst which causes the double bond to break and create a R-Alkane* (dot) this radical then breaks more double bond to extend the chain ( use a ziegler natta catalyst to get denser polymers with longer chains)

6

Free radical to create halogenoalkanes

Uv radiation creates halogen free radicals these then bond with a H from the alkane a (or the other halogen radical but not in the mechanism) diatomic halogen then splits and one halogen joins the alkane. can be repeated to get di, tri etc

7

Hydrolysis of halogenoalkane (nucleophilic substitution)

the halogen atom is replaced by the hydrokide ion and forms a halide ion.

8

TEsting the rate of hydrolysis in a halogenoalkane.

hga is heated with aq silver nitrate and ethanol(to disolve everything) water has to be used as OH- would react with the AgNO3 . C-I is fastest , C-Cl slowest

9

Form a Keytone from a alcohol.

Reflux, Excess [O]

10

Form a carboxylic acid from a alcohol.

Reflux, Excess [O]

11

Form a aldehyde from a alcohol.

Distillation, 1:1 ration for [O] and alcohol, add one drop of [O] one at a time to the alcohol

12

Elimination (dehydration) of an alcohol.

Alcohol ---> alkene + water Heat, Concentrates sulfuric acid catalyst . Reflux

13

Esterification.

Alcohol + Carboxylic acid ---> ester +water reflux, conc sulfuric acid catalyst,warm.

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14

Esterification.

Alcohol + Carboxylic acid ---> ester +water reflux, conc sulfuric acid catalyst,warm.

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