Section 13.2 from Chemical Ideas Alcohols and Ethers Section 13.2 from Chemical Ideas This Power Point uses some of the material from Chemical Ideas Salters Advanced Chemistry Section 13.2 It has been designed fro use with Unit WM in part of the A2 course. It can be used as an introduction or set up as a looped animation at the start of a lesson. JB

C2H6O There are two Isomers with this molecular formula Ethanol and methoxymethane

Ethanol Belongs to the homologous series called alcohols All members of the group contain the hydroxyl functional group…………. –OH They only differ in the length of their hydrocarbon chain

Methoxymethane Belongs to the homologous series called ethers All ethers contain the alkoxy group…… -OR

Alcohols They are named from the parent alkane by omitting the final –e and adding -ol CH3-OH CH3-CH2-OH CH3-CH2-CH2-OH CH3-CH2-CH2-CH2-OH methanol ethanol propan-1-ol butan-1-ol

Ethers Ethers are derived from alkanes by substituting an alkoxy group ( -OR ) for an H atom, for example CH3 – CH2 - O- CH2-CH3 ethoxyethane CH3 – CH2 – CH2- O- CH3 Methoxypropane Note that the longer hydrocarbon chain is chosen as the parent alkane