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.Related Products of 616-43-3.Potapov, V. K.; Yuzhakova, O. A. published the article 《Photoionization and electron structure of pyrrole and methylpyrroles》 about this compound( cas:616-43-3 ) in Doklady Akademii Nauk SSSR. Keywords: pyrrole photoionization electronic structure; photoionization pyrrole; electronic structure pyrrole. Let’s learn more about this compound (cas:616-43-3).
The appearance potentials were tabulated along with the ionic form for pyrrole, its 1-Me, 1-Bu, 2-Me, 3-Me and 2,4-di-Me analogs, from mass spectrometric data and from photoionization plots. The peculiarity of all these compounds was the existence of sharp rises of ionization thresholds which determine the position of the electronic 0-0 transition corresponding to the 1st adiabatic ionization potential of the mol. The 1st ionization potential of pyrrole is 8.2 ev, which corresponds to electron removal from the upper mol. 1a2 π3 orbital which has a node at the N atom and maximum electron d. at C atoms adjacent to N. The 2nd ionization potential of 9.08 eV corresponds to electron removal from the 2b1 π2 orbital which has maximum electron d. at C atoms not connected to N and a min. at C atoms which are connected to N. The variations of these values with alteration of structure are briefly discussed.
There is still a lot of research devoted to this compound(SMILES：CC1=CNC=C1)Related Products of 616-43-3, and with the development of science, more effects of this compound(616-43-3) can be discovered.
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