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Functional Groups Alkyl Halides, Alcohols. Isomers Draw the structure for C 5 H 12  Pentane  2-methylbutane.

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Presentation on theme: "Functional Groups Alkyl Halides, Alcohols. Isomers Draw the structure for C 5 H 12  Pentane  2-methylbutane."— Presentation transcript:

1 Functional Groups Alkyl Halides, Alcohols

2 Isomers Draw the structure for C 5 H 12  Pentane  2-methylbutane

3 Isomers  Structures that have the same molecular formula but different chemical properties  As the number of carbons increases, the number of structural isomers increases.  Pentane and 2-methylbutane are structural isomers. There is one more structural isomer. Can you find it?

4 Isomers  2,2-dimethylprotane  There are numerous hydrocarbon isomers

5 Functional Group  An atom, group of atoms or type of bond in an organic molecule that react in a predictable manner.  Symbol “R” is used to represent the hydrocarbon fragment of the organic molecule

6 FG#1: Alkyl Halides: R-X  X = F, Cl, I or Br  Organic compounds containing halogens are called alkyl halides  The prefixes are:  F= fluoro, Cl = chloro, Br = bromo, I = iodo

7 Naming Alkyl Halides 1. Parent Chain. 2. Number parent chain. 3. Name the branches. 4. Name the compound 4-bromo, 2-chloropentane

8 Naming Alkyl Halides 1. Parent Chain. 2. Number parent chain. 3. Name the branches. 4. Name the compound 1-chlorobenzene

9 FG#2: Alcohols: R-OH  Organic compounds containing a hydroxyl (-OH) group are called alcohols

10 FG#2: Alcohols: R-OH  Naming alcohols: 1. The parent chain must contain the atom attached to the –OH group. Number the carbon atoms in the parent chain so that the –OH group is given the lowest number.

11 FG#2: Alcohols: R-OH  Naming alcohols: 2. The name of the parent chain ends with “-ol” instead of “-e”. 3. Name and identify positions of the branches. 4. Name the compound.

12 Naming Alcohols 1. Parent Chain. 2. Number parent chain. 3. Name the branches. 4. Name the compound 1-Ethanol

13 Naming Alcohols 1. Parent Chain. 2. Number parent chain. 3. Name the branches. 4. Name the compound 3-methyl-1-butanol

14 Naming Alcohols 1. Parent Chain. 2. Number parent chain. 3. Name the branches. 4. Name the compound 2-propanol


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