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Inorganic and Organic Chemistry > Alkene Reactions > Flashcards

Alkene Reactions Flashcards

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1
Q

generally classified as unsaturated hydrocarbon because the presence of multiple bonds

A

alkene and alkyne

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2
Q

organic compound that must have at least one sp2 hybridization carbon atom or -C=C.

A

alkene

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3
Q

geometry of alkene

A

planar

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4
Q

geomtery of alkyne

A

linear

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5
Q

angle of bonds of alkene

A

120 degrees

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6
Q

angle of bonds of alkyne

A

180

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7
Q

simplest alkene

A

ethene

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8
Q

simplest alkyne

A

ethyne

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9
Q

must have at least one sp hybridized carbon atom or -C≡C-

A

alkyne

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10
Q

has a suffixes modified to -ene

A

alkene

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11
Q

named using the IUPAC system using -yne

A

alkyne

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12
Q

name the alkyne and alkene

A

grade yourself accordingly

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13
Q

For compounds containing both a double bond and a triple bond, priority is given to the what

A

alkyne

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14
Q

suffix of compounds containing both a double and trible bond

A

-enyne

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15
Q

However, if the double bond and the triple bond will have the same position in the numbering the carbon chain, then priority is given to the

A

double bond

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16
Q

The double bond will receive the ___ in terms of position

A

lower number

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17
Q

C=C- makes alkene relatively more reactive than alkane

A

presence of pi electrons

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18
Q

can undergo electrophilic addition reaction with the general mechanism shown below

A

alkene

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19
Q

involves the breaking of pi bonds to form two new single bonds

A

electrophilic addition reaction

20
Q

Reaction involves an electrophile which is an electron pair acceptor

A

electrophilic reaction

21
Q

intermediate formed in a electrophilic addition reaction

A

carbocation

22
Q

can be primary, secondary, tertiary, formed during electrophilic addition reaction

A

carbocation

23
Q

determine the type of carbocation in ppt

A

grade yourself accordingly

24
Q

most stable followed by secondary and the least is primary carbocation

A

tertiary carbocation

25
Q

one carbocation is formed, this attacks the carbocation to form the product as shown in the mechanism

A

nucleophile

26
Q

types of alkene reaction

A

Halogenation
Hydrogenation
Hydrohalogenation
Halohydrin formation
Acid catalyzed hydration
Oxidation
Hydration

27
Q

determine the type of alkene reaction

A

grade yourself accordingly

28
Q

this reaction follows anti-Markovnikov’s Rule because it follows free radical mechanism instead of a carbocation intermediate

A

addition of HBr in the presence of peroxide

29
Q

the addition of -H to the -C=C follows this rule

A

Markovnikov’s rule

30
Q

states that “hydrogen is added to the carbon with the most hydrogens and halide is added to the carbon with the least hydrogens”, this will form a more stable carbocation

A

Markovnikov’s rule

31
Q

still follows Markonivkov’s rule and is acid catalyzed

A

hydration of alkenes

32
Q

rearrangement is possible via this to form a more stable carbocation

A

hydride shift

33
Q

follows anti-addition and forms vicinal dihalide

A

Halogenation

34
Q

halogens that can be added to alkene

A

Cl or Br

35
Q

addition of halogen in the presence of water

A

halohydrin formation

36
Q

Follows Markovnikov’s rule wherein the halogen adds to the carbon with the most number of hydrogen atoms

A

halohydrin formation

37
Q

alkenes transformed to alkanes by addition of hydrogen gas in the presence of a metal catalyst

A

hydrogenation

38
Q

Most common metal catalyst are:

A

nickel
platinum
palladium

39
Q

oxidation of alkene via this process forms aldehyde and ketone

A

ozonolysis

40
Q

breaks the double bond in ozonolysis

A

oxidative cleavage

41
Q

Considered a weak oxidation of alkene

A

ozonolysis

42
Q

common reducing agents

A

Zinc (Zn)
dimethyl sulfide (CH3)2S)

43
Q

stronger oxidizing agent and in acidic medium results in formation of carboxylic acid and ketone

A

KMnO4

44
Q

produces CO2 in oxidation with KMnO4

A

terminal alkenes

45
Q

formed in a cold alkaline medium

A

diol

Inorganic and Organic Chemistry (19 decks)

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