Hydrocarbons with Functional Groups Alcohols Alcohols At the conclusion of our time together, you should be able to: Recognize the functional group and give a characteristic of this organic compound Name the organic compound with this functional group Draw this organic compound with this functional group Euphemisms in Science We all know that some politicians and government spokesmen use certain euphemistic phrases to give an aura of respectability to descriptions of events or actions which would be offensive when expressed in plain English. The following is a list of Euphemisms in Science and their translations into plain English. “It is believed that...” I think! “It is generally believed that...” A couple of other guys think so too! Functional Groups A group of covalently bonded elements that when bonded to a carbon chain give it a unique quality. Compounds with similar functional groups will have similar qualities and properties. Alcohols •They are organic compounds that are primarily used as disinfectants. •Alcohols have the functional group of –OH. •They have the general formula of R-OH. How to Name Alcohols Alcohols are named by adding the suffix -ol. If there is more than one hydroxyl group (-OH), the suffix is expanded to include a prefix that indicates the number of hydroxyl groups present (-diol, -triol, etc.). The position of the hydroxyl group on the parent chain is indicated by placing the number corresponding to the location on the parent chain directly in front of the base name. How to Name Alcohols The hydroxyl group takes precedence over alkyl groups and halogen substituents, as well as double bonds, in the numbering of the parent chain. If there is a choice in numbering after these rules are followed, the parent chain is numbered to give the double bonds and then substituents the lowest number. Another Why - Maxine Whatever happened to Preparations A through G? Examples of Naming Alcohols A Primary Alcohol – (-OH attached to an end carbon that is attached to 1 other carbon) Ethanol – drinking alcohol Examples of Naming Alcohols A Secondary Alcohol – (-OH attached to a middle carbon that has 2 other carbon bonds) 2-propanol Examples of Naming Alcohols A Tertiary Alcohol – (-OH attached to a middle carbon that has 3 other carbon bonds) 1,1-dimethylethanol (no) 2-methyl-2-propanol or 2-methylpropane-2-ol More Examples of Naming Alcohols 1,2,3-propantriol propane-1,2,3-triol benzenol phenol Alcohols Let’s see if you can: Recognize the functional group and give a characteristic of this organic compound Name the organic compound with this functional group Draw this organic compound with this functional group Exit Quiz: Alcohols Not for General Familiar Saying Where there are visible vapors from ignited carbonaceous materials, there is conflagration. Where there is smoke, there is fire! Hydrocarbons with Functional Groups Ethers Another Hittite Innovation!! Ethers At the conclusion of our time together, you should be able to: Recognize the functional group and give a characteristic of this organic compound Name the organic compound with this functional group Draw this organic compound with this functional group 15 Helpful Hints On The Lab Report from Mr. T’s Vast Lab Experience!!! Hint #6. If you can't get the answer in the usual manner, start at the answer and derive the question. Ethers •They are organic compounds that are primarily used as anesthetics. •Ethers have the functional group of –O– in the middle of the carbon chain. •They have the general formula of R-O-R’. Examples of Naming Ethers 1. Name the chains as alkyl groups 2. Put them in alphabetical order 3. End with ether. Name These Ethers: ethylmethyl ether Examples of Naming Ethers 1. Name the chains as an alkyl groups 2. Put them in alphabetical order 3. Ethylmethyl ether 4. (at 1 there is a methyl group) 5. 1-methylethylmethyl ether Ethers Let’s see if you can: Recognize the functional group and give a characteristic of this organic compound Name the organic compound with this functional group Draw this organic compound with this functional group Name this Ether 1. Name the chains as alkyl groups 2. ethylmethyl ether 3. 1,1-dimethylethylmethyl ether Murphy's Laws of Science and Technology To err is human, but to really foul things up requires a computer.