Dr. Usha Yadav
Research Scholar, Deptt. Of Chemistry, Singhania University, Rajasthan
Dheeraj Kumar
Research Scholar, Deptt. Of Chemistry, Singhania University, Rajasthan
Download PDFPyrrole is a heterocyclic aromatic organic compound, a five-membered ring with the formula C4H4NH. It is a colourless volatile liquid that darkens readily upon exposure to air. Substituted derivatives are also called pyrroles, e.g., N-methylpyrrole, C4H4NCH3. Porphobilinogen, a trisubstituted pyrrole, is the biosynthetic precursor to many natural products such as heme. A heterocyclic compound is a cyclic compound that has atoms of at least two different elements as members of its ring(s). The counterparts of heterocyclic compounds are homo cyclic compounds although heterocyclic compounds may be inorganic, most contain at least one carbon. Since in organic chemistry non-carbons usually are considered to replace carbon atoms, they are called heteroatoms, meaning 'different from carbon and hydrogen' (rings of heteroatom of the same element are homocyclic). The IUPAC recommends the Hantzsch-Widman nomenclature for naming heterocyclic compounds. Heterocyclic compounds can be usefully classified based on their electronic structure. The saturated heterocyclics behave like the acyclic derivatives. Thus, Pyrrole are conventional amines and ethers, with modified steric profiles.
Keywords: Acyclic derivatives, Pyrrole, amines and ethers.
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