Ethers

Question 1

Characteristics ?

Answer 1

Oxygen atom bonded to two alkyl or aryl groups
(2 Hydrocarbon Radicals + Oxygen)
Volatile
Highly Flammable
Mixed and Simple
PEROXIDE
They are relatively unreactive, and as a result they are useful as solvents for fats, oils, waxes, perfumes, resins, dyes, gums, and hydrocarbons.

Question 2

Preparation of Ethers ?

Answer 2

Detaching H2O from 2 Molecules of Alcohol

Question 3

Relevance in Medicine

Answer 3

Anesthetics

Question 4

Physical Properties

Answer 4

Ethers lack the hydroxyl groups of alcohols –> Without the strongly polarized O−H bond, ether molecules cannot engage in hydrogen bonding with each other

Ethers do have nonbonding electron pairs on their oxygen atoms, however, and they can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O−H or N−H bonds

The ability to form hydrogen bonds with other compounds makes ethers particularly good solvents for a wide variety of organic compounds and a surprisingly large number of inorganic compounds.

Question 5

Alkoxy group

Answer 5

RO -

Question 6

Compounds

Answer 6

Ethylene oxide
Dioxane
Methyl Phenyl Ether

Question 7

Methoxy group

Answer 7

CH3O-

Question 8

Ethoxy group

Answer 8

CH3CH2O-

Question 9

Diethylether

Answer 9

“Ether”
General anesthetic
Laboratory as solvent for fats and other organic compounds

Question 10

Methanephrine

Answer 10

From Epinephrine (Catecholamine) --> Methoxy group: MEthaneprhrine --> Deaminated: Vanillymandelic acid
(abbauproduct)

Question 11

Melatonin

Answer 11

Biologically active metabolite
+ Methylgroup

From Serotonin in Epiphysis