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Organic Chem Benzene and Aromaticity
Beneze and Aromaticity Video Review 1/10
16
Organic Chemistry
Post-Graduate
01/10/2023

Additional Organic Chemistry Flashcards

 


 

Cards

Term

 

A molecule that is cyclic, fully conjugated , bur does not satisfy Huckel's rule is 

A. Aromatic

B. Anti Aromatic

C. Non Aromatic

Definition

B. Anti Aromatic

 

[image]

Term

A molecule that is not aromatic, not fully conjugated or is not flat is known as 

A. Aromatic

B. Anti Aromatic

C. Non Aromatic

Definition

C. Non aromatic 

[image]

 

Term

Identify whether or not the following molecule is aromatic or not

[image]

Definition

Aromatic - it is one of the known heterocycles

[image]

Term

Which catalyst is typically used in Friedel-Crafts Alkylation?

A. AlCl3

B. FeCl3

C. Pt

D. H2SO4

Definition

A. AlCl3

 

Term

With Friedel-Crafts alkylation, it is difficult to attach _____ alkyl fragments due to  the possibility of ________. 

a) linear; acid-base chemistry

b) linear; carbocation  rearrangement 

 

c) branched; acid-base chemistry

d) branched; carbocation rearrangement

Definition
b) linear; carbocation  rearrangement 
Term

When involved in electrophilic aromatic substitution, benzene acts as a(n): 

 

a) nucleophile

b) electrophile

c) acid

d)  base

Definition
a) nucleophile
Term

5) Draw the product of the following EAS reaction:

 

[image]

Definition
[image]
Term

Alkyl groups are _______ directors, because they are ________.

a) ortho/para; deactivating

b) ortho/para; activating

c) meta; deactivating

d) meta; activating

Definition
b) ortho/para; activating
Term

2) Nitro groups are _______ directors, because they are ________.

a) ortho/para; deactivating

b) ortho/para; activating

c) meta; deactivating

d) meta; activating

Definition
c) meta; deactivating
Term

3) Halogens are ______ directors, despite being ________.

 

a) ortho/para; deactivating

b) ortho/para; activating

c) meta; deactivating

Definition

a) ortho/para; deactivating
Term

5) Draw the dominant product of the following transformation:

[image]

Definition

Nitro groups are deactivating , meta directors so the bromine is added to the meta position.

[image]

Term

What is amalgamated zinc complexed with?

a) copper
b) iron

c) mercury

d) chromium

Definition
c) mercury
Term

Clemmensen reduction converts a(n) _________ into a(n) _________.

 

a) ketone; alkane

b) aldehyde; alcohol

c) carboxylic acid; alkane

d) ester; alcohol

Definition
a) ketone; alkane
Term

What sequence of reactions can affix a linear alkyl fragment onto a benzene ring?

a) Clemmensen reduction, friedel-crafts alkylation

b) Clemmensen reduction, friedel-crafts acylation

c) friedel-crafts alkylation, Clemmensen reduction

d) friedel-crafts acylation, Clemmensen reduction

Definition
d) friedel-crafts acylation, Clemmensen reduction
Term

What other reagent is required to perform Clemmensen reduction?

a) NaOH

b) HCl

c) FeCl3

d) AlCl3

Definition
b) HCl
Term

Draw the product of the following Clemmensen reduction:

 

[image]

Definition
[image]
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