COA of Formula: C5H7N. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 3-Methyl-1H-pyrrole, is researched, Molecular C5H7N, CAS is 616-43-3, about Nonhydrolyzable organic nitrogen in soil size separates from long-term agricultural experiments. Author is Leinweber, P.; Schulten, H.-R..
Total N (Nt), hydrolyzed N, NH3-N, and nonhydrolyzed N were determined in soil particle-size separates from unfertilized or manured treatments in five long-term (15-108 yr) experiments in Germany. The concentrations of all N fractions (i) increased with decreases in particle size and (ii) were higher in samples from manured treatments. Irresp. of particle size and soil management, nonhydrolyzed N accounted for 7 to 31% of Nt (mean: 19%). On average, 53% of nonhydrolyzed N could be volatilized by pyrolysis. Field-ionization mass spectra of the pyrolyzates of two hydrolysis residues showed that N heterocycles are major constituents of nonhydrolyzed N. In addition, 28 to 34% of total ionintensity was assigned to low-mass N compounds and aliphatic nitriles and amides. Shifts to higher volatilization temperatures with maxima at 450 to 520° in the thermograms of all N compounds indicated that chems. stability, or strong bonds to soil minerals, are main reasons for the resistance of these mols. to acid hydrolysis. Curie-point pyrolysis-gas chromatog./mass spectrometry using a N-selective detector and library searches enabled the identification of aliphatic, carbocyclic, and aromatic amines and nitriles, benzothiazole, substituted imidazoles, substituted pyrroles and pyrrolidine, substituted pyrazoles, and isoquinoline derivative, substituted pyrazines and piperazine, pyridine, and methylpyridine. In addition, low-mass N compounds such as hydrocyanic acid, N2, nitrogen monoxide, isocyanomethane, and hydrazoic acid were assigned so that, in total, 37 compounds were identified in the pyrolyzates of nonhydrolyzed N. Within this fraction, the authors distinguished (i) proteinaceous materials, nonhydrolyzable probably due to binding or occlusion by pedogenic oxides, and (ii) highly alkyl-substituted N heterocycles, which are structural constituents of stable humic substances.
In addition to the literature in the link below, there is a lot of literature about this compound(3-Methyl-1H-pyrrole)COA of Formula: C5H7N, illustrating the importance and wide applicability of this compound(616-43-3).
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