Nomenclature

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1

Prefix for substituents with 1 carbon

meth-

2

Prefix for substituents with 2 carbons

eth-

3

Prefix for substituents with 3 carbons

prop-

4

Prefix for substituents with 4 carbons

but-

5

Prefix for substituents with 5 carbons

pent-

6

Prefix for substituents with 6 carbons

hex-

7

Prefix for substituents with 7 carbons

hept-

8

Prefix for substituents with 8 carbons

oct-

9

Prefix for substituents with 9 carbons

non-

10

Prefix for substituents with 10 carbons

dec-

11

Suffix for substituents

-yl

12

Suffix for molecule containing all single carbon bonds

-ane

(Alkanes)

13

Suffix for molecule containing at least one double carbon bond

-ene

(Alkenes)

14

Suffix for molecule containing at least one triple carbon bond

-yne

(Alkyne)

15

What are the 3 steps of naming alkanes?

1. Number the longest chain of carbons (Parents Chain)

2. Number carbons in parent chain so the substituents are on the lowest numbered carbons

3. Name it using the formula for alkenes

16

What is the formula for naming alkanes?

[# C the substituent is on]-[#of C in the substituent] [# of C in the backbone] [ane]

17

How do you know which substituent to write first in the name?

Substituents are written in alphabetical order

18
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1. When naming Carbon rings what prefix is placed in front of the back bone?

2. Name the molecule in the picture

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1. Cyclo-

2. Cyclopent ane

Prefix for a carbon ring

Prefix a molecule containing a parent chain with 5 Carbons

Suffix for a molecule containing all single Carbon bonds

19
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Name the molecule

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4-eth yl-2,2-di meth yl hex ane

What numbered carbon of the parent chain the substituent is on

Number of carbons in that substituent

Suffix for a substituent

Prefix if there is more than one of the same substituent

Prefix a molecule containing a parent chain with 6 Carbons

Suffix for a molecule containing all single Carbon bonds

20
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Name the molecule

3,4-di meth yl hept ane

What numbered carbon of the parent chain the substituent is on

Number of carbons in that substituent

Suffix for a substituent

Prefix if there is more than one of the same substituent

Prefix a molecule containing a parent chain with 7 Carbons

Suffix for a molecule containing all single Carbon bonds

21
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What prefix used for the substituent coming off this ring?

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Propyl-

Propylcyclopentane

22
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What prefix used for the substituent coming off this ring?

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Isopropyl-

Isopropylcyclopentane

23
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What prefix used for the substituent coming off this ring?

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Butyl-

Butylcyclopentane

24
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What prefix used for the substituent coming off this ring?

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Isobutyl-

Isobutylcyclopentane

25
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What prefix used for the substituent coming off this ring?

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Sec-butyl-

Sec-butylcyclopentane

26
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What prefix used for the substituent coming off this ring?

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Tert-butyl-

Tert-butylcyclopentane

27

What two prefixes do not have to be in alphabetical order?

Sec-butyl-

Tert-butyl-

28

The prefixes __________, __________, & __________ are not included in alphabetizing.

Di

Tri

Tetra

29

What do you do when numbering the parent chain if you can number it two ways with the two substituents both on the lowest two carbons

You number the parent chain so that the substituents are in alphabetical order to break the tie.

30

What is the formula to name a molecule with a functional group?

[# of carbons in parent chain]-[an/en/yn] [functional group identification]

31
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Name this molecule

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2-buttanol

Contains an alcohol

32

__________ take priority over other substituents meaning they should be on the lowest numbered carbon of the parent chain.

Functional groups

33
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1. Name this molecule

2. What functional group in in it?

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1. Pentanoic acid

2. Carboxylic acid

34
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What are two names for this molecule?

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isopropanol

2-propan ol

What numbered carbon of the parent chain the substituent is on

Prefix for a molecule containing a parent chain with 7 Carbons

Infix for a molecule containing all single Carbon bonds

Alcohol substituent

35
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Name this molecule

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4-methyl-2-pentanol

- Methyl is on the 4th carbon because the alcohol takes presidency over it.

36

The parent chain of an alkene must contain the __________ __________.

Double bond

37

When numbering the parent chain of an alkene what takes priority over what?

Substituents or double bonds?

Double bonds take priority over substituents.

Number the parent chain so the double bond is at the lowest number

38

What is the formula for naming alkenes

[# C the substituent is on]-[#of C in the substituent] [# of C in the backbone] [ene]

39
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Name this molecule

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Trans-2-butene

40
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Name this molecule

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CIs-2-butene

41
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Name this molecule

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4-methyl-2-hexene

42

What is the formula for naming alkynes

[# C the substituent is on]-[#of C in the substituent] [# of C in the backbone] [yne]

43

DO alkynes have cis/tran/E/Z?

No

44
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Name the molecule

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2-butyne

45
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Name the molecule

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3-methyl-1-butyne

46
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Name the molecule

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2,2-dimethyl-3-heptyne

47

Do cycloalkenes have cis/trans/E/Z?

No

48
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Name the molecule

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4-ethyl-1-methylcyclohexene