|Ch. 1 - A Review of General Chemistry||4hrs & 48mins||0% complete|
|Ch. 2 - Molecular Representations||1hr & 12mins||0% complete|
|Ch. 3 - Acids and Bases||2hrs & 45mins||0% complete|
|Ch. 4 - Alkanes and Cycloalkanes||4hrs & 19mins||0% complete|
|Ch. 5 - Chirality||3hrs & 33mins||0% complete|
|Ch. 6 - Thermodynamics and Kinetics||1hr & 19mins||0% complete|
|Ch. 7 - Substitution Reactions||1hr & 46mins||0% complete|
|Ch. 8 - Elimination Reactions||2hrs & 25mins||0% complete|
|Ch. 9 - Alkenes and Alkynes||2hrs & 10mins||0% complete|
|Ch. 10 - Addition Reactions||3hrs & 32mins||0% complete|
|Ch. 11 - Radical Reactions||1hr & 55mins||0% complete|
|Ch. 12 - Alcohols, Ethers, Epoxides and Thiols||2hrs & 42mins||0% complete|
|Ch. 13 - Alcohols and Carbonyl Compounds||2hrs & 14mins||0% complete|
|Ch. 14 - Synthetic Techniques||1hr & 28mins||0% complete|
|Ch. 15 - Analytical Techniques: IR, NMR, Mass Spect||7hrs & 20mins||0% complete|
|Ch. 16 - Conjugated Systems||5hrs & 49mins||0% complete|
|Ch. 17 - Aromaticity||2hrs & 24mins||0% complete|
|Ch. 18 - Reactions of Aromatics: EAS and Beyond||4hrs & 31mins||0% complete|
|Ch. 19 - Aldehydes and Ketones: Nucleophilic Addition||4hrs & 54mins||0% complete|
|Ch. 20 - Carboxylic Acid Derivatives: NAS||2hrs & 3mins||0% complete|
|Ch. 21 - Enolate Chemistry: Reactions at the Alpha-Carbon||1hr & 56mins||0% complete|
|Ch. 22 - Condensation Chemistry||2hrs & 13mins||0% complete|
|Ch. 23 - Amines||1hr & 43mins||0% complete|
|Ch. 24 - Carbohydrates||5hrs & 56mins||0% complete|
|Ch. 25 - Phenols||15mins||0% complete|
|Ch. 26 - Amino Acids, Peptides, and Proteins||2hrs & 54mins||0% complete|
|Ch. 26 - Transition Metals||5hrs & 33mins||0% complete|
|Alcohol Nomenclature||5 mins||0 completed|
|Naming Ethers||7 mins||0 completed|
|Naming Epoxides||18 mins||0 completed|
|Naming Thiols||11 mins||0 completed|
|Alcohol Synthesis||8 mins||0 completed|
|Leaving Group Conversions - Using HX||12 mins||0 completed|
|Leaving Group Conversions - SOCl2 and PBr3||13 mins||0 completed|
|Leaving Group Conversions - Sulfonyl Chlorides||8 mins||0 completed|
|Leaving Group Conversions Summary||5 mins||0 completed|
|Williamson Ether Synthesis||4 mins||0 completed|
|Making Ethers - Alkoxymercuration||4 mins||0 completed|
|Making Ethers - Alcohol Condensation||5 mins||0 completed|
|Making Ethers - Acid-Catalyzed Alkoxylation||4 mins||0 completed|
|Making Ethers - Cumulative Practice||10 mins||0 completed|
|Ether Cleavage||8 mins||0 completed|
|Alcohol Protecting Groups||3 mins||0 completed|
|t-Butyl Ether Protecting Groups||6 mins||0 completed|
|Silyl Ether Protecting Groups||11 mins||0 completed|
|Sharpless Epoxidation||10 mins||0 completed|
|Thiol Reactions||6 mins||0 completed|
|Sulfide Oxidation||5 mins||0 completed|
We’ve learned how to name simple alcohols before, but now we are moving to polyols.
Note: I am moving away from the term glycol, and using polyols instead, since the term glycol is not specific enough.
Concept #1: How to name polyols.
A functional group that we definitely need to know how to name is alcohols and they're really not so hard, so let's just jump straight into it.
A word that we use to describe a molecule that has more than one OH or more than one hydroxyl on the carbon chain is a glycol. Glycol is a very unspecific word because it just refers to any molecule that has more than one hydroxyl on it. Instead of using the term glycol, a lot of times we're going to use a more specific term. In fact, we're going to use prefixes to indicate exactly how many OHs are on that chain.
As you can image, we're just going to use the same prefixes that we use for all IUPAC nomenclature. If you have an alcohol with two hydroxyls, that's going to be called a diol. If you have an alcohol with three hydroxyls, you can imagine that's going to be called a triol. That would keep going to tetra, etcetera.
Now keep in mind that something that's unique about alcohol groups is that you always give the most priority or the highest priority in terms of the way that you number the chain or the way that you number the ring to the OH group. There's actually this phrase that we use in orgo one that just says alcohol beats all. That just means it's going to beat all the other functional groups that you're really exposed to in orgo one. If you have a double bond, triple bond, alkyl halide, anything else present, you're going to give your priority, in terms of prioritizing numbering, to the alcohol.
Let's just go ahead and jump into these examples. I want you guys to try and solve it on your own. Then I'll go ahead and jump in and give you guys the answer.
Polyols with two hydroxyls are called diols, and polyols with three hydroxyls are called triols.
Example #1: Provide the correct common and IUPAC name of the following alcohol.
Note: The molecule should be named trans-1,3-cyclohexanediol.
There are other possible name variations that are also acceptable. Here are just a few: (R,R)-cyclohexane-1,3-diol, (1R, 3R)-1,3-cyclohexanediol
Example #2: Provide the correct common and IUPAC name of the following alcohol.
Join thousands of students and gain free access to 63 hours of Organic videos that follow the topics your textbook covers.
Enter your friends' email addresses to invite them: