Chem final reagents
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86 Terms
PCC reagents are….
Pyridine, CrO3, HCl
Jones reagents are…
H2SO4, CrO3, H2O
C≡C: - is an example of what kind of reagent?
Organometallic
LiAlH4 is used for what kind of reactions?
Oxidation
NaBH4 is used for what kind of reaction?
Oxidation
LiCH3 is used for what kind of reaction?
Oxidation
Which reactant can turn an ester into a 1 prime alcohol?
LiAlH4
Which reactant can turn an aldehyde into a carboxylic acid?
CrO3, H2SO4, H2O
What do organometallic reagents typically react with?
Epoxides and Carbonyls
What reagent can turn a 1 prime alcohol into an aldehyde?
CrO3, HCl, Pyridine
What reagents can turn a primary alcohol into a carboxylic acid?
CrO3, H2SO4, H2O OR CrO3, Pyridine, HCl
What would classify as a nucelophilic acid?
HX
What does a nucleophilic acid do to an alcohol?
Replace OH group
What is an example of a non-nucleophilic acid?
H2SO4
What do non-nucleophilic acids do?
Make alcohols leave
What kinds of reagents are best for symmetric alkene synthesis?
Non-nucleophilic
How can we form a terminal alkene?
Use a bulky base
LDA is a…
Bulky base
Tert-butoxide is a….
Bulky base
A nitrogen with “antlers” can be recognized as…
LDA
An oxygen attached to a fully substituted carbon can be recognized as…
Tert-butoxide
Which reagents allow us to substitute OH for a better leaving group?
PBr3/PCl3, SOCl2, or a sulfonyl chloride
Which reagent will result in retention when used to activate an alcohol?
A sulfonyl chloride
What are the sulfonyl chlorides?
Mesyl chloride (ClMs), Tosyl Chloride (ClTs) and Triflic Anhydride (TfOTf)
Which forms of alcohol activation result in inversion due to SN2?
PBr3/PCl3 and SOCl2
What kinds of bonds do organometallic reagents make?
New C-C bonds
What is an example of an organolithium reagent?
LiCH3
LiAlH4 attacks what kinds of molecules?
Epoxides, Esters, Carboxylic acids, Aldehydes and Ketones
NaBH4 attacks what kinds of molecules?
Aldehydes and ketones
What will cause an epoxide to open on the less substituted side?
Basic conditions
What will cause an epoxide to open on the more substituted side?
Acidic conditions
What is an example of a Gringard reagent?
BrMgR
Hydride reagents typically make…..
New C-H bonds
What mechanism(s) is/are involved in converting a primary alcohol to a carboxylic acid?
SNAc, Acid/Base, and E2
What mechanism is used to form alkenes?
Elimination
What mechanism is used when substituting an alcohol for a halogen?
SN1
What reagents are required to hydrogenate an alkene?