In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Synthesis of α,α’-unsubstituted pyrroles, published in 1959, which mentions a compound: 616-43-3, Name is 3-Methyl-1H-pyrrole, Molecular C5H7N, Synthetic Route of C5H7N.
α,α’-Unsubstituted pyrroles were made as intermediates for the synthesis of porphyrins and bile pigments. 3-Methylpyrrole (I) and 3,4-dimethylpyrrole were obtained in 40% yield (based on the starting acetal) from MeCOCH2CH(OMe)2 (II) and MeCOCHMeCH(OMe)2, resp. II cyanohydrin was condensed with dihydropyrene (III) to give MeC(CN)(OCH.CH2.CH2.CH2.CH2.O)CH2CH(OMe)2 which was reduced to the corresponding amine with LiAlH4. Acidification liberated the pyrrole but because of further transformation in the presence of acid, it could not be isolated. Acetylation of the amine, followed by treatment with MeC6H4SO3H in absolute Me2CO, split off III, liberated the aldehyde group and gave I acetyl derivative in one step. I was obtained by careful alk. hydrolysis.
I hope my short article helps more people learn about this compound(3-Methyl-1H-pyrrole)Synthetic Route of C5H7N. Apart from the compound(616-43-3), you can read my other articles to know other related compounds.
Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate