3.9 further synthesis and analysis Flashcards
(12 cards)
1
Q
what are synthetic routes?
A
show reagents, conditions and procedures to get from one compound to next
2
Q
how are synthetic routes designed?
A
use non-hazardous starting materials (less accidents/ environmental damage)
not too wasteful- high atom economy and % yield
3
Q
draw the organic synthesis routes for organic compounds
A
poster
4
Q
draw the organic synthesis routes for aromatic compounds
A
poster
5
Q
what is NMR spectroscopy?
A
technique to help determine structure of a molecule
2 types- 13C NMR and 1H NMR
6
Q
t,q 3:2
A
CH3-CH2-
(ethyl group)
7
Q
t, t 2:2
A
-CH2-CH2-
8
Q
d, q 3:1
A
CH3- CH-
9
Q
s 3
A
CH3-
(methyl group)
10
Q
s 1
A
-OH
11
Q
why do you use CDCl3 or CCl4 as a solvent in hydrogen nmr?
A
they dont contain hydrogen atoms
12
Q
why is TMS used to calibrate in nmr?
A
- signal is far away from others- 0 by definition
- only gives one signal
- non-toxic
- inert
- low bp so easily removed from sample
