CHEM242 - EPOXIDATION LCTA

what functional group is reacting?

how does this epoxidation differ from mCPBA?

what downsides, if any, are there to using mCPBA for epoxidations?

how do you measure out liquids?

why is it necessary to use an ice bath?

is the order of addition in this reaction important?

what is the role of H2O2?

what is the role of NaOH?

what byproducts do we generate?

what safety considerations are there for this experiment?

what is the nucleophilic species?

how is the product purified?

what are possible impurities of this rxn?

how do you analyze the product to see how pure it is?

What peaks are you looking for in the IR spectrum that are characteristic of the product?

How do you make a 5% w/v solution of NaOH?

What is the other 95%? (5% NaOH)

What is a 5% w/v solution of NaOH in terms of molarity?

How do you make a 30% w/w solution of H2O2?

What is percent recovery? 

What is the principle behind recrystallization?

Why do we use warm solvent to dissolve the crude product?

Why do we use cold solvent to wash the recrystallized product?

Why do we have to wait for the solid to dry?

How can you tell if the product is dry?

What is a hot filtration and when would you do it?

What is 200 proof ethanol?

What is 95% ethanol? 

Why do we use one type of ethanol over the other?

Does it seem necessary to use 200 proof ethanol in this experiment?

What does the melting point of a compound tell you regarding its identity or purity?

What is the proper technique for filtration with a Buchner funnel?

How do you obtain an IR spectrum of a solid using the ATR?

How do you obtain an IR spectrum of a solid using salt plates?

How do you calculate yield?

How many equivalents of each reagent are we adding?

What's a catalyst?

What would the 1H NMR spectrum look like?

What would the 13C NMR spectrum look like?