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Organic Chemistry

Scorching goIITian

Joined:	23 Oct 2007
Post:	279

28 Oct 2007 19:33:32 IST

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816

alkenes

None

Write formula for product of the reaction of 2Methyl Hexene with each of following:-

a)HBr in presence of light

b)catalytic reduction with H2

c)dil. alkaline KMnO4

d)Hypochlorous acid

e)cold conc.H2SO4

f)Bromine

g)Iodine

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boredom

Blazing goIITian

Joined: 14 Jan 2007

Posts: 602

28 Oct 2007 20:40:50 IST

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Hey,

a)2bromo 2methyl hexane(no anti markonikov)

b)2methyl hexane

c)2 methyl hexane-1,2 -diol.

d) not

e) dsure

f)1,2 dibromo 2methyl hexane

arun-rashi

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Joined: 19 Oct 2006

Posts: 1057

28 Oct 2007 22:10:51 IST

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a.this reaction is HBr in presence of peroxide so formation of free radical and free radical addition reaction takes place.ans is BrCH2-CH(CH3)-CH2CH2CH2CH3 b.this reaction is catalytic hydrogenation so product is 2-methyl hexane

arun-rashi

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28 Oct 2007 22:16:21 IST

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c.alkenes reacts with cold KMnO4 so this oxidation reaction .in this reaction cis hydroxylation takes place.first cis addition of KMnO4 than hydrolysis with water to give 2-methyl hexane cis 1,2-diol. d.next reaction is halohydroxylation by hypochlorous acid.first formation of cyclic halonium ion than back attack of hydroxy anion takes place which give trans 1-chloro 2-methyl 2-hexanol.

arun-rashi

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28 Oct 2007 22:19:08 IST

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alkenes reacts with con.H2SO4 is an example of addition of H2SO4.this is break down into H+ and -OSO3H so product is CH3-C(OSO3H)CH3-CH2CH2CH2CH3

arun-rashi

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Joined: 19 Oct 2006

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28 Oct 2007 22:21:10 IST

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with Br2 first formation of cyclic halonium ion takes place than trans dihalo product formed across double bond.similar reaction with iodine.

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