Purification, Classification and Nomenclature of Organic compounds
The word 'organic' signifies life.因此，直接或间接地从生物体，动物和植物制备的每个分子都被称为organic compounds和the branch of chemistry which deals with these compounds was calledorganic chemistry.
Modern meaning of organic chemistry :Organic chemistry is a chemistry of hydrocarbons and their derivatives in which covalently bonded carbon is an essential constituent.
Berzelius提出了1815年的理论生命力理论. It defines that, "organic compounds could be prepared only by living organism under the influence of a mysterious force known as vital force".Accidental synthesis of urea byWohler和synthesis of acetic acid by科尔贝led to the fall of this theory.
Berthelotpreparedmethanein laboratory and the most abundant organic compound iscellulosewhich is a polymer of glucose.Kekule和Couperproposed the tetravalency of carbon and wrote the first structural formula. In 1874,Van't Hoff和勒贝尔suggested a tetrahedron model of carbon.
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