Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password

Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Question

pKa
click to flip
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know

Question

how can alcohols be prepared
Remaining cards (12)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

MCAT O Chem

Ch. 7 Alcohols and Ethers

QuestionAnswer
pKa pKa=-logKa. strong acids have high Ka's and small pka's. Phenol has small pka so most acidic of alcohols listed
how can alcohols be prepared from the reduction of aldehydes, ketones, carboxylic acids, or esters. Lithium aluminum hydride (LiAlH4 or LAH) and sodium borohydride (NaBH4) two most common reducing reagents
how can phenols be synthesized arylsulfonic acids with hot NaOH. Or hydrolysis of diazonium salts.
Reducing agents Have lots of H's (NaBH4 and LiAlH4), oxidizing agents have lots of O's (KMnO4 and CrO3)
oxidation of alcohols generally involves some form of chromium (VI) as oxidizing agents. PCC is only mild oxidizing agent, partially oxidizes 1^o alcohols to aldehyde
Jones's oxidation chromium trioxide, CrO3 dissolved with dilute sulfuric acid in acetone. oxidized primary alcohols to carboxylic acids and secondary alcohols to ketones
treatments of phenols with oxidizing reagents produces what quinones
ethers do not H bond, boil approx. same temp as alaknes of comparable weight, only slightly polar, and slightly soluble in water. Most inert organic reagent so freq. used as solvents
williamson either synthesis produces ethers from the reaction of metal alkoxides with primary alkyl halides or tosylates
epoxide or oxrine formation oxidation of an alkene with peroxy acid (RCOOOH)
peroxides and ether ethers react with oxygen in air to form highly explosive compounds called peroxides
strong bases as leaving group are poor leaving groups
symmetric and asymmetric epoxides sym. either C can be attacked, asyn. most substituted C nuclophilically attacked when catalyzed with acid, least sub. attacked with a nucleophile (basic conditions)
Created by: adam87
Popular MCAT sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards