Summary
Summary - org chem 101
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organic chemistry notes about (alkenes and alkynes)
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Hydrocarbonstaturatedhydrocarbon cis same
alkamentlatz trans dillerent
cycloalkaneentian 1 doublebondmustbepresent
unsaturatedhydrocarbon 2 therehastobetwodillerentgroupsattachedtotheH
alkenecation catsch ch ch
alkyne cation 2
isn'tworkcan't
a
yes
Alkene c c a man chs becis ortrans
mm mn nm thereactionsofalkene alkyne A
s contains s doublebonds alkantriene notes thmostcommonreactionofalkaneissubstitution reaction
Depending onthepositionofthedoublestriplebond threactionofattunesalkyneare additionreaction
A
cumulated c c c c c c c
conjugated c cnc c c c c Hydrogenation additionofHz
nonconjugated ve s c c ke e se cha cha that Hardimirt chs chs
rule alkene Hzrainiest alkane
m chechttlardiptini cha cha th cHz at
no ofdoublebond prefix ene whenweaddedamoleofhydrogen to 3 hexynewillproduce
cha CH cha CH I butene sty sty EFctittizan cuz Hz ch ch sa ch
1 wefindthelongestchain cts É ch ch
ch tick cha 3 hexyne 3 hexene
2 wenumberthedoublebond 2 methyl 2butene2 methyl 1,3 but
diene
cycloalkeneentian 2 Halogenation additionofhalogen Buz ch
s cyclo prefixtene noneedtowritewherethdoubebondis cHzEztBrz 1,2 dibromoethene
say sty
example 2 methylcyclohexane 1,3 cyclohexane chs ctfti cttiz ch CI CI cha ch
alkene x2 halothaneoralkylhalide
Namingalkyneentian 2 Iupac ethyne
Hach
no oftriplebond preen yue common acetylene additionof halogen to alkyne
tertbutyl
H
II
Br th
butyl Gisopropylcyclohexane
s tert H C c H Bra
B
c c
y
H
IE H
isopropyl
O A
specialcaseforadditionhydrogen toalkyne
thecommonname alkynettizbills cis chs c c chattia
light at city
ethene
Iupac Propene Tupa
cha ah ethylene common
cts chat propylene common additionofHzto 2pentyneinpresenceoflindlar'scatalyst
2 pentene
g gin
attach
If weadda hydrogentoan alkyneitalways
cis butif weaddahalogento
É
i
sigma 4sigmabond ispast analkyne it alwaystrans
1 sigmabond spaspy
sigma
sigma t pi bond p pl
sigma
H C I sigma sp si I sigmacsp sp
sigma sigma
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