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System nomenclature of four organic compounds

Feb 24, 2016

  Do you know system nomenclature of four organic compounds?

   System nomenclature of four organic compounds---Nomenclature of alkanes

   The name is the basis of all alkanes named open chain hydrocarbon and its derivatives.

   System nomenclature of four organic compounds---Nomenclature of geometrical isomers

   The nomenclature of the olefin geometry includes two methods: CIS, trans, E and Z.Simple compounds can be used along the counter, it can also be expressed by Z, E. The same atom or group is in the same side of the carbon atom of the double bond in the same side of the double bond, whereas the opposite is the opposite.

   System nomenclature of four organic compounds---Nomenclature of optical isomers

   The configuration of optical isomers two said method D, l and R, s, D, l labeling with glyceraldehyde as the standard, some limitations and some compounds is difficult to determine it relation with glyceraldehyde structure. Therefore, more is application of R and s labeling, it is according to the chiral carbon atoms connected four different atoms or groups in the sequence in which the space marked the. Optical isomers are generally used to represent the projection type, to master the Fischer projection type of projection principle and configuration of the judgment method.

   System nomenclature of four organic compounds---Nomenclature of Bi functional and multi functional compounds

   It is the key to determine the matrix of the double functional group and the multi functional compound. Common in the following situations:

   When the halogen and nitro group and other functional groups, the halogen and nitro as a substituent, other functional groups for the mother.

When the double bond with hydroxyl, carbonyl, carboxyl group, not to the olefin as the parent, but with alcohol, aldehyde, ketone, carboxylic acid as the parent.

When the hydroxyl group and the carbonyl group, the aldehyde and ketone are used as the parent body.

When the carbonyl and carboxyl coexist, with carboxylic acid as precursor.

Fifthly, when the double and triple bonds coexist, should choose both containing double bond and containing triple bond of the longest carbon chain backbone, number to double or triple bonds with could be as low as far as possible, if the same number of double bonds and triple bonds, to the double bond to the lowest numbered.
 

  

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