Naming Alkanes Flashcards

1
Q

Methane

A

1 carbon

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2
Q

Ethane

A

2 carbons

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3
Q

Propane

A

3 carbons

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4
Q

Butane

A

4 carbons

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5
Q

If more than 1 parent chain

A

Choose one with most substituents

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6
Q

If parent cyclic

A

Add prefix cyclo to parent name

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7
Q

Substituent parents

A

Same as parent chain but with -ly

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8
Q

Number substituent side groups

A

Number prime

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9
Q

One substituent

A

Number parent chain so substituent has lowest number possible

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10
Q

If multiple substituents

A

parent to give substituent closet to end lowest # possible

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11
Q

If there’s a tie with multiple substituents closest to end have same number

A

Number parent so the second locant gets lowest possible

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12
Q

If multiple substituents and the tie breaker for numbering locants (2nd with lowest #) doesn’t work then…

A

assign lowest number alphabetically

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13
Q

More than 1 substituent

A

Use replicating prefixes ( di, Tri, tetra) and state the number each is on. Even if it’s the same u repeat the number.

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