The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 3-Methyl-1H-pyrrole( cas:616-43-3 ) is researched.HPLC of Formula: 616-43-3.Chen, Wei; Yang, Haiping; Chen, Yingquan; Xia, Mingwei; Chen, Xu; Chen, Hanping published the article 《Transformation of Nitrogen and Evolution of N-Containing Species during Algae Pyrolysis》 about this compound( cas:616-43-3 ) in Environmental Science & Technology. Keywords: nitrogen evolution nitrogen containing species algae pyrolysis biofuel; amino acid decomposition algae biomass pyrolysis. Let’s learn more about this compound (cas:616-43-3).
Transformation and evolution mechanisms of nitrogen during algae pyrolysis were investigated in depth with exploration of N-containing products under variant temperature Results indicated nitrogen in algae is mainly in the form of protein-N (∼90%) with some inorganic-N. At 400-600 °C, protein-N in algae cracked first with algae pyrolysis and formed pyridinic-N, pyrrolic-N, and quaternary-N in char. The content of protein-N decreased significantly, while that of pyrrolic-N and quaternary-N increased gradually with temperature increasing. Pyridinic-N and pyrrolic-N formation was due to deamination or dehydrogenation of amino acids; subsequently, some pyridinic-N converted to quaternary-N. Increasing temperature decreased amides content greatly while increased that of nitriles and N-heterocyclic compounds (pyridines, pyrroles, and indoles) in bio-oil. Amides were formed through NH3 reacting with fatty acids, that underwent dehydration to form nitriles. Besides, NH3 and HCN yields increased gradually. NH3 resulted from ammonia-N, labile amino acids and amides decomposition, while HCN came from nitrile decomposition At 700-800 °C, evolution trend of N-containing products was similar to that at 400-600 °C. While N-heterocyclic compounds in bio-oil mainly came from pyrifinic-N, pyrrolic-N, and quaternary-N decomposition Moreover, cracking of pyridinic-N and pyrrolic-N produced HCN and NH3. A mechanism of nitrogen transformation during algae pyrolysis is proposed based on amino acids decomposition
I hope my short article helps more people learn about this compound(3-Methyl-1H-pyrrole)HPLC of Formula: 616-43-3. 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