Exam 3 Flashcards
what does mCPBA do in a rxn
adds Oxygen between double bond like a dart
what does H2SO4 and H2O add in a rxn
adds OH and H (H goes to least stable)
what kind of products do H2SO4 and H2O yield in a rxn
trans markovnikov
what kind of products to BH3 and H2O2/NaOH yield in a rxn
anti-markovnikov
what would it look like if there were two OH groups on neighboring carbons in a ring where OsO4 and NMO are reagents
OH are cis
what would it look like if there were two OH groups on neighboring carbons in a ring where mCPBA, H2SO4, H2O are reagents
OH are trans
what is initiation
no radical to one radical
what is propagation
radical moves
what is termination
one radical to no radical
what does O3 do
breaks double bond in two
what does KMnO4 do
acts like O3 but adds alcohol
to add 2 Br to alkene but 4 to alkyne add..
Br2
to add 1 Br to alkene but 2 to alkyne add..
HBr
what does OsO4 do
turns to single bond
what does NaIO4 do
splits carbon bond
explain how acidic rxn occurs
e- from O move to make double bond, e- from double bond move to break bond and go to H+, then e- from bond go to oxygen to neutralize and H+ goes to H2O to yield ketone and H3O+
what yields when Lindlar’s catalyst is used
cis alkene from alkyne
what yields when Li, NH3 used
trans alkene from alkyne
what kind of reaction occurs with KOtBu
E2
what are base molecules we might see
c4h9o-, k+
what are molecules that are both basic and nucleophilic
OH- and MeO-
what are nucleophilic molecules we might see
NaCN, NaN3, NaOAc
what reactions will never be elimination
one carbon
when there is a base and nucleophile, what reaction will CH3X yield
Sn2
when there is a base only, what reaction will CH3X yield
Sn2
when there is a nucleophile only, what reaction will CH3X yield
Sn2
when there is neither a base or nucleophile, what reaction will CH3X yield
none
when there is a base and nucleophile, what reaction will a primary carbon yield
Sn2/E2
when there is a base and nucleophile, what reaction will a secondary carbon yield
Sn2/E2
when there is a base and nucleophile, what reaction will a tertiary carbon yield
E2
when there is a base only, what reaction will a primary carbon yield
E2
when there is a base only, what reaction will a secondary carbon yield
E2
when there is a base only, what reaction will a tertiary carbon yield
E2
when there is a nucleophile only, what reaction will a primary carbon yield
Sn2
when there is a nucleophile only, what reaction will a secondary carbon yield
Sn2
when there is a nucleophile only, what reaction will a tertiary carbon yield
none
when there is neither a base or nucleophile, what reaction will a primary carbon yield
none
when there is neither a base or nucleophile, what reaction will a secondary carbon yield
Sn1/E1
when there is neither a base or nucleophile, what reaction will a tertiary carbon yield
Sn1/E1
what does POCl3, pyr do
talkes alcs to alkenes in E2 rxn
what does PBr3 do
takes alcs to Br in Sn2
what does SOCl2 do
takes alcs to Cl in Sn2
what does adding NaNH2/NaNH3 do? how do you treat?
adds carbon … treat with carbon group and chloride
