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PT- Orgo Practice test #5 and 6
Organic Chem Practice test FC
23
Organic Chemistry
Post-Graduate
12/29/2022

Additional Organic Chemistry Flashcards

 


 

Cards

Term

 

NaOCH3 is known as _________

and it makes reactions go_________

Definition

NaOCH3 is known as Sodium Methoxide

and it makes reactions SN2 or E2

[image]

[image]

This example can not be E2 because it would remove the aromaticity 

Term

[image]

1. OH-, 2 )mCPBA

2.Concentrated H2SO4, heat 2) mCPBA

3. H3O+, heat 2) OsO4

Definition

2.Concentrated H2SO4, heat 2) mCPBA

 

[image]

The alcohol undergoes acid catalyzed hydration to become an alkene and uses MCPBA to become an epoxide

Term

What type of compounds can not be enolized?

Enolized being undergoing an aldol condensation

Definition

A compound with no protons bound to the alpha carbon

[image]

Term

K2Cr2O7 is what type of reaction agent?

 Strong/Weak       

Oxidizing or Reducing

 

It takes primary alcohols to _________

 

Definition

Oxidizing agents

 

Carboxylic Acid

Term

PCC is what type of reaction agent?

 Strong/Weak       

Oxidizing or Reducing

 

It takes primary alcohols to _________

  

Definition

Weak Oxidizing Agent

 

Aldehydes

Term
What type of alkene is most readily formed in an elimination?
Definition
 A Zaitsev product which involves the more substituted alkene
Term
[image]
Definition

[image]

 

This is a rxn with tertiary alcohol reacting with HBr

which goes SN1 

first step would be to protonate the hydroxyl and then a loss of a leaving group

Term
When looking at Molecule basicity for molecules with lone pairs what must we look at?
Definition

Lone pairs must be able to act as a base

ie not involved in resonance

Term

The highest priority groups are 

 

 

Definition

Carboxylic Acids and Carboxylic Acid derivatives  (ie esters)

 

Next is ketones and aldehydes

then is alcohols and amines

then double bonds

then triple bonds

 

Term

The degrees of unsaturation formula is 

 

ie How many degrees of unsaturation are there in C13H20N2O2

Definition

(2C+2+N-X-H)/2

 

=(2(13)+2+2-0-20)/2

=5

 

Term
What makes polar protic solvents different from polar aprotic solvents?
Definition

Polar protic solvents have hydrogen atoms bonded to electronegative elements so they are capable of donating and accepting hydrogen bonds.

[image]

Polar aprotic solvents don't have hydrogen bonds bonded to electronegative atoms

ie. Acetone,DMSO THF

[image]

Term

 

Elimination reactions result in

Definition

The formation of a pi bond

( alkyl halide to alkene)

[image]

Term
Tautomers are defined as organic compounds that have the _______ molecular formula but ________ connectivity
Definition

same molecular formula

different connectivity

 

[image]

the most common relationship is the keto- enol tautomers

Term

To make the most stable chair conformations,

the most bulky bases must go   ________

the least bulky groups should go ________

Definition

bulky groups go equatorial

least bulky should axial  

Term

Elimination reactions prefer the 

_________ substituted alkane to perform the reaction unlike substitution reactions

Definition
More substituted alkene
Term
A sharp peak at 3200-3500 cm-1 represents what  functional group?
Definition

Amino

N-H

Term
A Moderate peak around  2200-2250 cm-1 represents which functional group?
Definition

Nitrile 

C≡N

Term
Cyclohexanone is a cyclohexane with what functional group?
Definition

 a ketone

 

Term
Imines are
Definition

functional groups that contain C=N bonds

[image]

Term

Hydrogenation reactions involve 

 

_______ becoming __________

Definition
Alkenes becoming alkane
Term
If a ring was opened up by ozonolysis , how could we figure out how many carbons were in the original structure?
Definition
We can count the number of carbons from one carbonyl carbon to the next carbonyl carbon
Term
Aldol condensations transform a ___________ to a _____________
Definition
A carbonyl ( aldehyde/ketone) to a α, β unsaturated carbonyl
Term
What type of molecules do not rotate plane polarized light?
Definition
A Chiral molecules
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