Classes Of Functional Groups
Organic Chemistry deals mostly with carbon and hydrogens, also called hydrocarbons, but those groups which replace hydrogen and bonds with carbon to give a characteristic nature, unique of their own, to the hydrocarbon they are attached to, are called functional groups. All the compounds belonging to a functional group undergo reactions in a similar pattern and are known to have similar physical and chemical properties.
Characteristics Of Functional Groups
In organic chemistry, we encounter a number of special substituent groups which are attached to the hydrocarbon backbone. These groups impart certain characteristics to the molecule of which it is a part of and thus, become the highlight of that particular molecule.
IUPAC Nomenclature
In Chemistry, IUPAC stands for International Union of Pure and Applied Chemistry which suggested a systematic naming approach for the organic and inorganic compounds, as in the beginning stage of nomenclature one single chemical compound was named in many ways by which lead to confusion. The need for this approach aroused as the number of chemical compounds newly discovered were increasing (approximately 32 million compounds) and the basic concept of nomenclature i.e. the trivial nomenclature and the derived system of nomenclature failed to overcome the challenge. It is an important task to name a chemical compound systematically and unambiguously which reduces lots of confusion about the newly reported compounds.
![Drugs from plants
glucose
он
OH
OAc
isolation
hydrolysis
oxidation
acetylation
1827
он
1938
OH
HO
но
salicin
salicylic alcohol
(saligenin)
salicylic acid
aspirin
White willow Salix alba
Salicin from Salix alba
From White willow to Aspirin
glucose
OAC
HO
OH
Ancient Egypt
Native American
Edward Stone
Kolbe &
salicin
-700 BC
-1400s
1763
Lautemann
aspirin
1000 BC
500 BC
1700
1825
1860
1900
2000
1838
1898
publishes a report
detailing five years
of experiments on
the use of dried,
Raffaele Piria
Felix Hoffman
finds that adding an
OH
converts salicin to
salicylic acid and
glucose
OH
acetyl group to salicylic
acid reduces its irritant
powdered willow
bark in curing fevers
properties and Bayer
salicylic acid
synthesis
patents the process
http://herballeaf.eu/willow-bark-natural-aspirin/](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Feb62ec4b-b625-4332-acd2-c86081f32c3c%2F1d05df4c-1c21-4f50-ab9e-7b9844511e70%2Fgx5977a_processed.jpeg&w=3840&q=75)
![CH3
H3C
H.
OH
ephedrine
ZI](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Feb62ec4b-b625-4332-acd2-c86081f32c3c%2F1d05df4c-1c21-4f50-ab9e-7b9844511e70%2F6ocqaxa_processed.jpeg&w=3840&q=75)
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Ephedrine is obtained from the stem of plants ephedra vulgaris or ephedra sinica. Ephedrine acts on part of sympathetic nervous system (SNS) and increases blood pressure. It is also a bronchodilator.
We have been asked to draw mechanism of ephedrine is obtainance from ephedra plant.
Step by step
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