Name the following compounds: m-Diethylbenzene 1,3,4-trichlorobenzene 5-bromo-2-chlorophenol.
Concepts and reason
IUPAC stands for international union of pure and applied chemistry. IUPAC has given a nomenclature to name the organic compounds. The IUPAC name consists of three parts: root name, prefix and suffix. Aliphatic and aromatic both compounds follow the same rules.
Fundamentals
The three parts of an IUPAC nomenclature of aromatic compounds are root name, prefix and suffix.
Numbering of carbon atoms starts from the prior group as per the alphabetical order and functionality.
Prefix tells the position and name of the substitutions present on the aromatic ring.
Suffix tells the functional group present in the structure.
Answer:
The numbering of the compound is shown below:
Explanation:
The numbering is done in such a way that the substituents get the lowest possible location number.
The name of the compound is as follows:
Explanation:
The compound contains two methyl groups which justifies the term ‘di’ before ethyl Two ethyl groups are present at 1 and 3 positions. Therefore, the name of the compound will be m-diethyl benzene because both ethyl groups are at meta positions with respect to each other.
The name and numbering of the compound is show below:
Explanation:
The compound contains two methyl groups which justifies the term ‘di’ before ethyl Two ethyl groups are present at 1 and 3 positions. Therefore, the name of the compound will be m-diethyl benzene because both ethyl groups are at meta positions with respect to each other.
The name and numbering of the compound is show below:
Explanation:
In this compound, there are three groups, hydroxy group, bromo group and chloro group, hydroxy group is more prior than chloro and bromo so, hydroxy group is present at 1 and chloro at 2 and bromo at 5 positions. Therefore, the name of the compound will be 5-bromo-2-chlorophenol. Hydroxy groups is prior to all the groups present, therefore the suffix will be phenol instead of benzene.