Class notes

Organic Reaction Mechanisms - Organic Chemistry

2 views 0 purchase

Course
CHEM 281 (CHEM281)

Institution
Simon Fraser University (SFU )

Class notes from lectures on organic reaction mechanisms. Includes acid-base, substitution, rearrangement, addition, and elimination reactions.

[Show more]

Preview 1 out of 1 pages

View example

Uploaded on January 18, 2024
Number of pages 1
Written in 2023/2024
Type Class notes
Professor(s) David vocadlo
Contains Class 18

CA$4.43

Add to cart

Add to wishlist

100% satisfaction guarantee
Immediately available after payment
Both online and in PDF
No strings attached

ORGANIC

Le M IS
MPORTAN TO UNDERSTAND REACTION MECHANISMS BECAUSE
THEY TELL US
WHY And How A REACTION OCCURRED . REACTION MECHANISMS SHOW THE

MECHANISMS Specific and Sequentral MOVEMENT of ELECTRONS
during
A CHEMICAL REACTron This MOVEMENT S
.
REPRESENTED By CURVED ARROWS THAT MUSTRATE

ELECTRON MOVEMEN FROM NUCLEOPAMES TO
ELECTROPHITES .

DENSE MOLECULES WITH ELECTRON RICH ACOMS THE USUALLY HAVE Of
VEOPHMES : ARE ELECTRON IONS OR . ONE OR MORE

The
FOLLOWNG TRLE Bond
A

MEGATE CHARGE
THE CHARACTERESTS A LONE C-C DOUBLE Or To Reactne
.
,
Pors ,

St
ELECTRONS THE BOND HEY ARE NUCLEOPHUES FOR +
k
++
PARTICIPATING
THE ATTRACTED
N .
T CALLED
WAY THEY ARE TO
POSTNELY
S-
NUCLEi
CHARGED
.

ELECTROPHIES ELECTRON ICNS OR MOLECULES W I ELECTRON POOR ACOMS HAVE POSTAE
CHARGE
: POOR A OR
PARTHAL POSTME
THEY
.

DUE TO
DiPOLES CAUSED
By POLAR Bowds
.

T SEE
Exactly How MOLECMES REACT WITH ONE ANOTHER, WE DRAW

ELECTRON MOVEMENT lice How do for Acro-base and resource.
Ayamo
ELECTRONS MOVE NO 3 curved Arrows we
CAN
ONLY WAYS
:
,

H C

Of ELECTRONS
domNG
,

forming
Bond
...
. When A Love par The
Contributes to By : THESE CURVED ARROWS DEPRET THE MOVEMENT A REACTRON
BF3
=
1 > .

H
,
C
H a
,

formation of A NEW Bond n The product
. THERE ARE RULES To Curved Arrows THE HEAd of THE Arrow

DRAWG
.

H HzC
2 Bond WHER A Bond CHX B PONT THE DIRECTION of ELECTRON of
oo

The Reactant MOVEMENT
BrEakmg
MUST THE Arrow
.
=
present N CH Br : 2 : I .
THE TAR
6 o

7
HzC HC
,
BECOMES A LONE OF ELECTRONS THE PRODUCT The ELECTRON Source
AddMrovay Curved Arrows are

Begno
Musy
PANR TN .
& , ,

H

Hay-
It

I
. Bond
3 Bond Bond THE REACTANT SHOW AOM MOVEMENT
A ELECTRON MOVEMENT
THEY
To WHEN NOT USED To
Only
= No
B t
.

2
H
-

It ItzC
is Broken no favour of formaron of a Bord It -
AllyS Pony To ETHER An AcoM Or A Bond, N O MTO
/
EmpTy SpACE .

of Formal
product KEEP
Charges
in the TRACK .

RXN
INTERMOLECULAR REACTIONS : ARE REACTIONS THAT
Types Summary
O COR BETWEEN 2 OR MORE MOLECULES Acid-BASE REACTIONS Addnon REACTIONS - 1 OR 2 STEPS

Br
S

Bi Br
H Br
%. + H +
Nai ↑
- ot
.. >
+ -
② H
7
8+ ↓ O

SUBSTAUTON REACTIONS -1 OR 2
STEPS ELIMINATION REACTIONS - 1 OR 2 STEPS

U Br
& TRAMOLECULAR REACTIONS : ARE REACTIONS THAT
Br +
-
- -
c
+ BrNa" + -
CHz > + Brivat

Nat Nat

Smogle
Occur WITHIN A MOLECULE

o- T
S 3
J ·
+
p Rearrangement
REACTIONS

Off
-
2
Steps
TYPReL INTERMEdrATES :
⑧
O

1 CANTON-HAS An
.

METHYL EMPTY PORBMAL THAT

H
WES
PerpendICULAR TO THE

# t

METHYL PLANE . 2-H Bowds

ARE
Sp3-S OVERLAP .

2
.
METHyL Anton - has a Lone
par no A Sp3

ORBMAL THIS AREA
↑
.
IS
VERY
H H
H
ELECTRON DENSE DUE TO THE

LOVE PAR

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller kac26. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$4.43. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

49768 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling