Ethers

 ethers

kat flaherty josh carmer sarah bowen media type="file" key="Ethers.m4a" width="263" height="263"

Hey guys, so I am gonna write down some of the stuff she told us to include in our podcast. -structure of compounds -examples of compounds -how the chemicals can be recognized (from structure) -how to name the compounds -where the compound is found in nature -use of the compound

So, I am going to make a sort of layout for the page, and as you find info you can add it. Also, if you start working and think of some good lines for the script, feel free to write them down. Btw, there are some weird things happening when I try to fix the spacing and layout of some stuff...just so you know. ~Sarah

Ethers are any of a class of organic compounds characterized by an oxygen atom bonded to two alkyl or aryl groups. Ethers are similar in structure to alcohols, and both ethers and alcohols are similar in structure to water. In an alcohol one hydrogen atom of a water molecule is replaced by an alkyl group, whereas in an ether both hydrogen atoms are replaced by alkyl or aryl groups. They're also flammable : ) -Josh

Script Work! (whooo!)

In this presentaton we will be talking about ethers. Ethers are organic compounds characterized by and oxygen atom bonded to two alkyl groups (show structure visual). Alklyl groups consist of carbon and hydrogen. The simplest alkyl group is metheyl (show metheyl structure visual). Ethers are named by listing the alkyl groups in the ether and then adding the word ether to the end. For example, diethyl ether. Ethers can have two different alkyl groups within the same compound.

ok, thats enough for tonight, its late. I'll continue tomorrow. -Kat

Add any NEW script stuff below, and make good transitions please:  Script So Far: In this presentaton we will be talking about ethers. Ethers are any class of organic compounds characterized by an oxygen atom bonded to two alkyl groups (show structure visual). Alkyl groups consist of bunches of carbon and hydrogen, which are also known as hydrocarbons. The simplest alkyl group is methyl (show methyl structure visual). Ethers are similar in structure to alcohols, and both ethers and alcohols are similar in structure to water. In an alcohol, one hydrogen atom of a water molecule is replaced by an alkyl group, whereas in an ether both hydrogen atoms are replaced by alkyl or aryl groups. It is easy to recognize ethers by looking for 2 hydrocarbon groups connected to an oxygen atom when viewing a compound. Ethers are named by listing the alkyl groups in the ether and then adding the word 'ether' to the end. When an ether has two alkyl groups that are the same, the prefix di- is added to the beginning of the alkyl name. For example, take 'diethyl ether'. Diethyl ether is a good example of an ether because it was once used as an anesthetic and is still used as a solvent. The alkyl groups in a diethyl ether compound are ethyls. When an ether contains two different alkyl groups, the alkyls are listed in alphabetical order, such as in methyl propyl ether. Pure complex ethers are very rarely found in nature, so most are lab-based or man-made. Ethers are found in sugars, however, and serve to connect saccarides to form carbohydrates. There are several ways in which ethers can be used. One was as an anesthetic. The first use of ether as an anesthetic was in 1842, but it was never recorded, so the credit went to William Morton in 1846, when he publicly administered ether to a patient during an operation. Luckily, the anesthesia was a success, as the patient did not feel any pain while the tumor was removed from his neck. Ethers are non-reactive, so they serve well as organic solvents. They are used to seperate organic materials into basic parts. Methyl-tertiary-butyl ether is used widely as a gasoline octane enhancer, and is perhaps the most frequently used ether. Because of their nonreactive nature, Ethers have few chemical properties. They are flammable and when in a gas state produce an explosive mixture with air. Though ethers are similar in structure to alcohols, the boiling points of ethers are much lower. This is because alcohols have a hygrogen bonded to an oxygen, which allows for hydrogen bonding between molecules. Ethers lack this oxygen-hydrogen bond. In conclusion, ethers can be identified by their alkyl- oxygen- alkyl bonds, by the lack of hydrogen bonding, and by the low boiling point. They are similar in structure to water, and even more similar to alcohol. They are used for many things, such as anesthetics, organic solvents, and in gasoline. In general, ethers are organic compounds worth mentioning.  Good news! I just found out it has to be only 3-5 minutes long. So we've probably reached that point already. But feel free to edit or add stuff. But for the most part we can focus on pictures now. Hey hey guys, this looks pretty spiff. I'm gonna print it out round 10:15 ish, so if you change anything after that reprint it and make sure its ok. I have some pics that I will get on a flashdrive, but try to get some of your own if you can! Thankss.

Photo Order: ~One of R-O-R structure- I got one. ~Methyl structure- Got one.. ~Diethyl ether, I would think- Got one! ~Methyl propyl ether-couldn't find a good one. ~Sugar- got one. ~Pictures of people under anesthesia, maybe? drawings?- got one.~Methyl tertiary ether structure- yup, got one.

What is an ether? -A class of organic compounds, formed from an oxygen atom and alkyl groups - Formula R-O-R

What is an alkyl group? -An alkyl group is basically a group of the atoms carbon and hydrogen. -The smallest alkyl is methyl, or CH3. Structure of ethers: - The general structure of an ether is an oxygen atom joined with two alkyl groups, the formula being R-O-R.

Examples of ether compounds: -Diethyl ether, a solvent and anesthetic once used. 

How the chemicals can be recognized from structure: alkyl group-oxygen-alkyl group (R-O-R) is the structure that characterizes ethers. (great line for podcast, by the way)

How to name ethers: -Ethers are named by listing the alkyl group in the ether, and then adding 'ether' to the alkyl group name at the end. Ex: CH3CH2OCH2CH3 is named 'diethyl ether', because the alkyl group in this compound is diethyl, and then 'ether' is added.

Where ethers are found in nature: <span style="background-color: rgb(255,255,255);">From what I've found, ethers are seldom found in nature and when they are it's a big deal (http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6THR-42K6MMD-YP&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=2f89632677b20ed2caaa7a151065b8ad)

This other website mostly talks about Stephen Hawkings "theory of everything", but also states that ethers are seldom found in nature (http://www3.telus.net/foamyether/) -Kat -EDIT: these articles were talking about a certain complex group of ethers that form a loop in structure, while we're talking about simple ethers.

<span style="background-color: rgb(255,255,255);"> <span style="background-color: rgb(241,80,80);">How ethers are used: -Mainly used as organic solvents. -Used in preparation of alkanes, reactions involving sodium, and as 'solvent in Grignard reagents'. -Solvent for oils, waxes, fats, alkaloids. -Used in 'solvent extraction'- helps to get a pure sample of the organic compound it is mixed with. -Anesthetic-Muscle relaxant (through inhalation) <span style="background-color: rgb(243,98,98);"> Physical Properties: -Boiling point is 94 degrees F, lower than alcohols due to lack of hydrogen bonds -

<span style="background-color: rgb(240,102,102);">Chemical Properties: -Its vapor can cause explosive mixture in when in air.-Relatively unactive, so has few chem properties<span style="background-color: rgb(255,255,255);"> - <span style="background-color: rgb(246,76,76);">Additional info: <span style="background-color: rgb(255,255,255);">-

<span style="background-color: rgb(248,84,84);">Website sources: 1) [|http://chemed.chem.purdue.edu/genchem/topicreview/bp/2organic/alcohols.html#ethers] 2) http://en.wikipedia.org/wiki/Ether (not used as primary source) 3) http://en.wikipedia.org/wiki/Alkyl (not used as primary source) 4) http://www.bookrags.com/research/ether-woc/ 5) http://images.google.com/imgres?imgurl=http://www.scienceclarified.com/images/uesc_01_img0040.jpg&imgrefurl=http://www.scienceclarified.com/Al-As/Anesthesia.html&usg=__8gYUkFfArhLgB5HdeiSVxyh6sAc=&h=330&w=439&sz=49&hl=en&start=15&um=1&tbnid=b-QPPUT9DGQpQM:&tbnh=95&tbnw=127&prev=/images%3Fq%3Dether%26um%3D1%26hl%3Den%26client%3Dsafari%26rls%3Den-us%26sa%3DN 6) 7) 8) 9) 10)

<span style="background-color: rgb(244,82,82);">Picture Sources: 1) http://www.hcc.mnscu.edu/chem/V.20/ethers.jpg 2) http://www.firehouse.com/training/hazmat/chemist/2002/8_chemist1.gif 3) http://telstar.ote.cmu.edu/environ/m3/s5/graphics/embedded/diethylether.gif 4)http://wps.prenhall.com/wps/media/objects/476/488316/ch19.html 5) 6) [|http://www.sabic.com/me/ar/binaries/MTBE-(Methyl-Tertiary-Butyl_tcm16-1779.gif] 7) 8) 9) 10)