Application of 616-43-3. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 3-Methyl-1H-pyrrole, is researched, Molecular C5H7N, CAS is 616-43-3, about Model reactions on roast aroma formation. III. Mass spectrometric identification of pyrroles from the reaction of serine and threonine with sucrose under the conditions of coffee roasting. Author is Baltes, Werner; Bochmann, Gloria.
Numerous alkyl- and acylpyrroles, two 2,3-dihydro[1H]pyrrolizines, furfurylpyrroles, and 1 furanylpyrrole were identified in the volatiles of roasting serine, threonine, and sucrose. The formation of the alkylpyrroles was suggested to proceed via a pyrolytic pathway because they were formed in the absence of sucrose. The retention indexes and mass spectra are reported together with selected mass spectrometric fragmentations. A large number of the identified compounds were also recognized in roast coffee volatiles.
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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