Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.

Remove ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
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

O Chem

Test 2 study guide

QuestionAnswer
Keytone (R)2C=O
Terminal alkyne --> 1.disiamylborane 2. OH, H2O2, H2O an aldehyde. Addition of H and OH
Terminal alkyne --> H2O, H2SO4, HgSO4 a keytone. Addition of H and OH
Internal alkyne ---> 1. BH3/THF 2. OH, H2O2, H2O Keytones. Addition of H and OH
Internal alkyne ---> H2O, H2SO4 Keytones. Addition of H and OH
Addition of Cl2 or Br2 to an alkyne ---> CH2Cl2 trans addition, but ultimately symmetical
Lindlar catalyst to alkyne cis addition of Hydrogen
Na or Li/ NH3(liq) to an alkyne trans addition of Hydrogen
Retains double bond NH3(liq)/ H20, H2SO4/ Lindlar Catalyst/ Disiamylborane
Addition of NaOH The OH knocks off the large substituent and it then attaches with opposite stereochemistry.
When you add Br2 across a double bond, which solvent should you use? CH2Cl2
When you add H2O to a triple bond, the product is an enol which changes to a keytone
Terminal alkynes can be used to obtain aldehydes by using disiamylborane
all functional groups have a higher priority than alkynes except ethers and halides
1. BH3/THF 2. H2O, OH, H2O2 to a terminal alkyne anti markovnikov addition
1. BH3/THF 2. H2O, OH, H2O2 to an internal alkyne keytone
NaNH2 ---> deprotinizes
NaNH2/ R-Br adds an R chain
If you want a keytone from an internal alkyne, your reagent is H2O, H2SO4
If you want a keytone from a terminal alkyne, your reagent is H2O, H2SO4/ HgSO4
Created by: maw247