Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
13 Cards in this Set
- Front
- Back
|
Nitration of Benzene Reagents Conditions |
Reagents: Conc H2SO4 and Conc HNO3 Conditions: 55 degrees |
|
|
Halogenation of Benzene Reagents Conditions |
Reagents: AlCl3 and Cl Conditions: Anhydrous |
|
|
Test for carbonyl compound |
2,4-DNPH gives an orange ppt. The 2,4-DNPH derivative can be purified by re-crystillation. The melting point can be measured and therefore the melting point can be compared to known values to identify specific carbonyl compound. |
|
|
Trans Fats |
Can stack together which can lead to a build up of plaque and thickening of the walls of the arteries. |
|
|
Why can Amines act as a base? |
They have a lone pair of electrons on the Nitrogen atom. The lone pair accepts protons and forms a dative covalent bond. |
|
|
Polyamides Preparation |
Can be prepared from two monomers one with an amine group at each end the other with a carboxylic acid at each end. Examples are nylon 6,6 and Kevlar |
|
|
Thin layer chromatography |
Liquid mobile phase moves over solid stationary phase. The solid stationary phase separates components by adsorption. The components bind to the surface of the solid at different points. Stationary phase: the adsorpent. Mobile phase: the liquid solvent that moves up. Limitations of TLC- 1) Some components can have the same Rf values making it hard to identify components. 2) Unknown compounds have no Rf value to compare with. 3) Choosing a suitable solvent that dissolves all components |
|
|
Gas chromatography |
Gaseous mobile phase moves over liquid stationary phase. Separates compounds by using the difference in solubility of the components. Stationary phase: solid/liquid coated onto the inside of the capillary tube. Mobile phase: inert gas. Limitation of GC- any compound present in a smaller conc may be masked by others. |
|
|
Chiral synthesis |
Often requires the production of chiral drugs containing a single isomer. Molecules can be synthesised in a lab and can contain a mixture of optical isomers Disadvantages: - Can increase costs because it is difficult separating optical isomers. - Greater chance of side effects. |
|
|
Modern synthesis of single optical isomers. |
1) Using enzymes or bacteria because it promotes stereoselectivity. 2) Using a chiral catalyst 3) Using a natural chiral molecule as a starting molecule. |
|
|
Condensation Polymer |
The joining of monomers to form a polymer with the removal of a small molecule. Can be photodegradeable because the C=O has the ability to absorb infrared. |
|
|
Hydrolysis of Peptides ACID Reagents Conditions |
Reagents: H2O/H+ Conditions: 24hr, 6 Molar and HCl |
|
|
Hydrolysis of Peptides ALKALI Reagents Conditions |
Reagents: NaOH Conditions: 100 degrees |
