Mechanisms Flashcards
What does ozonealysis look like and what does it do?
Reaction: 1. O3 2. (CH3)S
It cuts double bonds and leaves a double bonded oxygen on both ends of the “cut”
What happens when H2/ (any metal) is reacted with an alkene or alkyne
It just “erases” extra bonds and replaces them with a regular single bond
What does an HgSO4, H2SO4, H2O reaction do?
All it does is add a double bonded oxygen to the carbon that has priority. (For triple bonds)
What does an (1)(sia)2BH (2)H2O2, NaOH reaction do?
All it does is add a double bonded oxygen to the carbon that DOES NOT have priority. (For triple bonds)
What does an Na, NH3 reaction do?
It uses one-electron reductions to essential turn triple bonds into double bonds
What does an H2 Lindlar’s catalysts reaction do?
It turns a triple bond into a double bond my placing CIS hydrogens on the bond
What does an (1) OsO4, (2) NaHSO3 reaction do?
It forms alcohols on both ends of the double bond (turning a alkene into a vicinal diol)
What does an (1) BH3, (2) NaOH, H2O2 reaction do?
It adds an OH on the least favored carbon (double bond)
What does an (1) Hg(OAc)2, (2) NaBH4 reaction do?
It adds an OH group to the most favorite carbon ignoring re arrangement
What does 2 moles of NaNH2 do?
It turns a vicinal dihalide into a triple bond
What does 3 mol NaNH2 do?
It turns a vicinal dihalide into a triple bond when it’s on the edge (terminal) (this will result in a lone pair unless there’s is also a H3O step)
What does 1. NaCN 2. H3O+ do to an epoxide?
It splits it and adds a CN anti from the OH created
What does PCC do?
It takes an alcohol and turns it into an aldehyde (double bonded oxygen and a hydrogen on a carbon)
What are the three ways to make an epoxide from a double bond?
- (1. Br2 H2O, 2. NaOH)
- (RCO3H)
- (mcPBA)
What does PBr3 do?
It switches out OH with something else (like Br or if there is something else added then whatever that is)
