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Summary personal chemistry notes

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My own organic chemistry I notes

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  • October 14, 2024
  • 2
  • 2023/2024
  • Summary
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sabrinanguyen
ANDELECTROPHILE
IUCLEOPHILE REACTIONMECHANISMS
thatusuallyhasalotoflonepairsorhasanegative
NUCLEOPHILEspecies chargelove ELECTRONPUSHINGdepicttheflowormovementofelectronsduringreactions
clewisbase

the
nucleusseeks
p ositive
change ADDITIONS

EX H2OOHNits Definitioncarboncarbon bond
d ouble w here bonds broken
are a ndinitsplace.obondsfrmt.tw

bearpositivecharge
and outelectronsand
seek seeks charge
negative newatomsorgroupsofatm




I Iffy
É'dt'tFestCHIBusFears Alll NEEDtoknow
FACTIONSBETWEENNUCLEOPHILESANDELECTROPHILES
1 dex
EX
H CH H E CH Hydration
44 4,0 d
É JH
BITE F IE
1 gd
Br x
am
jpg p
acidicconditionsbehaves
electrophileUnder more
Hydrogenation
Y ft Hz dd
Hit
REACTIONCOORDINATEDIAGRAMS transition
stage 2
to H
gyp y jp
Nucleo Electro


ARBOCATION le É heatutreaction


withapositive
EFINITIONcarbon charge
as




my
Ijjjjjjj
CH
y

1
y stable
more than
reactionintermediates
TRANSITIONSTATESlifetimes

ELECTROPHILICADDITIONS
onlyontheorder
elimeslongerthanittateserthebondtubate

ofthelifetimeofabondvibration

Definitionoverallreactionofelectrophilicspeciesaddingto
CH
Tertiary
CH
Secondary
I H H methyl
KEYSTEPinvolves
bonds

Primary methyl electronsofthealkenereactingasanucleophileorBronsted
Lowry


TABILITY CHARACTERISTICFEATURESMAKING MOLECULE
A ORANIONELECTROPHILIC
1 Effect
Inductive
1 reflected
Regionoflowelectrondensity positive
byapartialorfll charge

of
2Hyperconjugation relatedtotheoverlap atomicorbitals Aidsinanelectonrichregionofanucleophile attraction
electrostatic
through
orbital
2 Lackofanoctetonanatom
Iffyptyp 3 Relativelyweakbondtoanatomthatcandepartasastableionormolecule

HClHB andHI




jiff
1A ye yep theoctet
andoxygenobeys
REGIOSELECTIVEREACTIONreactioninwhich
onedirectionofbondformingorbrea
ingoccursinpreferencetallotherdirectionsofbo

formingorbreaking

asMARKOVNIKOV'sRULEadditionofH X
Generalizationknown
worse
4 I 12 moststable
notstabilizeBycan
Anything
only 3 structures
n
n
drawcandrawsresonance wecanputthepositi
EFFECT
INDUCTIVE
of
number hydrogens



DEFINITIONelectron
deficiency ofthecationiccarboneventsexertsonelectronwithdrawing
thatpolarizeselectronsfromadjacentsigma towardit
bonds

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