Mechanisms Flashcards
What is required to go from an alkene to a vicinal diols?
1) OsO4
2) NaHSO3
What is the product of a reaction with an alkyne and 2X2?
vicinal tetrahalide
What is the product of a reaction with an alkene and HX?
haloalkane
Regiochemistry: Markovnikov
Stereochemistry: mixed
What is the product of a reaction with an alkyne and HgSO4, H2SO4, H2O?
ketone
What is the product of a reaction with an alkene and X2, H2O?
halohydrin
Regiochemistry: OH on more substituted carbon
Stereochemistry: anti
What is required to go from an alkene to a haloalkane?
HX
What is the product of a reaction with an alkene and X2?
vicinal dihalide
Stereochemistry: anti
What is the product of a reaction with an alkyne and H2 and Lindlar’s Catalyst?
alkene
Regiochemistry: Z product (syn)
What is required to go from an alkyne to a aldehyde?
1) (sia)2BH
2) NaOH/H2O2
What is the product of a reaction with an alkyne and Na/NH3?
alkene
Regiochemistry: E product (anti)
What is the product of a reaction with an alkene and 1) OsO4
2) NaHSO3?
vicinal diol
What is required to go from an alkene to a syn, non-MArkovnikov alcohol?
1) BH3
2) H2O2/OH-
What is the product of a reaction with an alkene and H2, Pd, Pt, Ni?
alkane
Stereochemistry: syn
What is the product of a reaction with an alkyne and 2HX?
germinal dihalide
Regiochemistry: Markovnikov with terminal alkynes
What is the product of a reaction with an alkyne and 1) NaNH2
2) RCH2X?
an alkyne (made a C-C bond)
What is required to go from an alkene to an alkane?
H2, Pd, Pt, Ni
What is the product of a reaction with a vicinal dihalide and 1) 3 NaNH2
2) H2O/HCl?
terminal alkyne
What is the product of a reaction with an alkene and 1) Hg(OAc)2/H2O
2) NaBH4?
alcohol
Regiochemistry: Markovnikov, no rearrangement
Stereochemistry: mixed
What is the product of a reaction with an alkyne and 1) (sia)2BH
2) NaOH/H2O2?
aldehyde
What is required to go from an alkyne to a ketone?
HgSO4, H2SO4, H2O
What is the product of a reaction with an alkane and Br2, hv?
haloalkane
What is required to go from a vicinal dihalide to an alkyne?
2 NaNH2 for an internal alkyne or
1) 3 NaNH2
2) H2O/HCl
for a terminal alkyne
What is required to go from an alkane to a haloalkane?
Br2, hv
What is required to go from an alkene to a mixed, Markovnikov alcohol?
H2O,H2SO4 (cat)
What is required to go from an alkene to a mixed, no rearranged non Markovnikov alcohol?
1) Hg(OAc)2/H2O
2) NaBH4
What is the product of a reaction with an alkene and 1) O3
2) (CH3)2S?
ketone, C=C bond breaks
What is required to go from an alkene to a ketone?
1) O3
2) (CH3)2S
carbon=carbon bond breaks
What is required to go from an alkyne to a vicinal tetrahalide?
2X2
What is the product of a reaction with a vicinal dihalide and 2 NaNH2?
internal alkyne
What is required to go from an alkene to a halohydrin?
X2, H2O
What is required to go from an alkene to a vicinal dihalide?
X2
What is the product of a reaction with an alkene and H2O,H2SO4 (cat)?
alcohol
Regiochemistry: Markovnikov
Stereochemistry: mixed
What is required to go from an alkyne to an alkyne?
1) NaNH2
2) RCH2X
makes a C-C bond
What is the product of a reaction with an alkene and 1) BH3
2) H2O2/OH-?
alcohol
Regiochemistry: non-Markovnikov
Stereochemistry: syn
What is required to go from an alkyne to an alkene?
Na/NH3 for an E product
or
H2 and Lindlar’s Catalyst for a Z product
What is required to go from an alkyne to an alkane?
2H2 and Pd, PT, Ni
What is the product of a reaction with an alkyne and 2H2 and Pd, PT, Ni?
alkane
What is required to from an alkyne to a germinal dihalide?
2HX
What is required to go from an alkene to a haloalkene?
NBS
What is the product formed when an alkene reacts with NBS?
haloalkene; most stable alkene product
What is required to go from an alkene to an epoxide?
RCO3H
What is the product formed when an alkene reacts with RCO3H?
epoxide
Stereochemistry: syn
What is required to go from primary haloalkane to an alkene?
tBuOK
What is required to go from a secondary/tertiary haloalkane to an alkene?
RO-/ strong base by E2
Regiochemistry: Zaitsev
Stereochemistry: Anti periplanar
What is the product formed when a primary haloalkane reacts with tBuOK?
alkene
Regiochemistry: Zaitsev
Stereochemistry: Anti periplanar
What is the product formed when a secondary/tertiary alkane reacts with RO-/strong base?
alkene
Regiochemistry: Zaitsev
Stereochemistry: Anti periplanar
What is required to go from an epoxide to a Markovnikov vicinal diol?
H3O+
What is required to go from an epoxide to a non-Markovnikov vicinal diol?
HO-
What is the product form when an epoxide reacts with H3O+?
vincinal diol
Regiochemistry: Markovnikov
Stereochemistry: anti
What is the product form when an epoxide reacts with HO-?
vincinal diol
Regiochemistry: non-Markovnikov
Stereochemistry: anti
What is required to go from a halohydrin to an epoxide?
RO- by Sn2
What is the product formed wen a halohydrin reacts with RO-?
epoxide
Stereochemistry: anti-periplanar
What is required to go from a primary haloalkane to an ether?
RO- by Sn2
What is the product formed when a primary haloalkane reacts with RO-?
ether
What is required to go from a secondary/tertiary alcohol to an alkene?
H2SO4 by E1
What is the product formed when a secondary/tertiary alcohol reacts with H2SO4?
alkene
Regiochemistry: Zaitsev
What is required to go from a tertiary alcohol to a haloalkane?
ROH or HX by Sn1
What is the product formed when a tertiary alcohol reacts with ROH or HX?
haloalkane
Stereochemisry: scrambled
What is required to go from a primary/secondary alcohol to a haloalkane?
PBr3 or SOCl2 by Sn2
What is the product formed when a primary or secondary alcohol reacts with PBr3 or SOCl2?
haloalkane
Stereochemstry: inversion
What is required to go from a primary/secondary alcohol to a sulfonate ester?
2 RSO2Cl
What is the product formed when a primary or secondary alcohol reacts with 2 RSO2Cl?
sulfonate ester
What is required to go from a primary alcohol to a carboxylic acid?
H2CrO4
What is the product formed when an alcohol reacts with H2CrO4?
carboxylic acid
What is required to go from a primary alcohol to an aldehyde?
PCC
What is the product formed when a primary alcohol reacts with PCC?
aldehyde
What is required to go from a secondary alcohol to ketone?
H2CrO4
What is the product formed when a secondary alcohol reacts with H2CrO4?
ketone