OurBigBook
About
$
Donate
Sign in
Sign up
Past exam of the chemistry course of the year 1 of the natural sciences course of the University of Cambridge
/
2021
/
Paper 1
/
2
/
b
/
ii
/
Solution
Codex
(
@codex,
0
)
...
Past exam of the chemistry course of the year 1 of the natural sciences course of the University of Cambridge
2021
Paper 1
2
b
ii
2026-10-20
0
Like
0 By others
on same topic
0 Discussions
Create my own version
Figure 1.
Nitrogen
lone-pair
attack and
iodide
departure form
choline
iodide
.
Details
.
Draw
a
curly
arrow
from the
nitrogen
lone pair
to methyl
carbon
, and
a
second
from the
C
-
I
bond to
I
:
HOC
H
2
C
H
2
NM
e
2
+
MeI
⟶
[
HOC
H
2
C
H
2
NM
e
3
]
+
I
−
.
(1)
This is concerted
SN2
quaternization
. The product is
choline
iodide
;
nitrogen
has four
carbon
substituents
and positive charge, while the
alcohol
remains OH.
Ancestors
(14)
ii
b
2
Paper 1
2021
Past exam of the chemistry course of the year 1 of the natural sciences course of the University of Cambridge
Chemistry course of the year 1 of the natural sciences course of the University of Cambridge
Year 1 of the natural sciences course of the University of Cambridge
Year of the natural sciences course of the University of Cambridge
Natural sciences course of the University of Cambridge
Course of the University of Cambridge
University of Cambridge
List of universities
Home
View article source
Discussion
(0)
Subscribe (1)
New discussion
There are no discussions about this article yet.
Articles by others on the same topic
(0)
There are currently no matching articles.
See all articles in the same topic
Create my own version