30189-91-4Relevant articles and documents
First Example of a Pyrylium Salt Dimerisation in Solution
Markovitsi, Dimitra,Jallabert, Colette,Strzelecka, Helena,Veber, Michele
, p. 2819 - 2822 (1990)
A pyrylium salt is capable of forming dimers in non-polar solvents at room temperature.The dimer, corresponding to a head-to-tail configuration in which the monomer dipole moments are parallel, has been characterized by its electronic absorption spectra, fluorescence spectra and its fluorescence lifetime.The dimer-monomer equilibrium constant is found to be 2.7 * 105 dm3 mol-1.
Visible light-induced N-methyl activation of unsymmetric tertiary amines
Perumal, Gopi,Kandasamy, Mohanraj,Ganesan, Balaji,Govindan, Karthick,Sathya, Harsha,Hung, Min-Yuan,Chandru Senadi, Gopal,Wu, Ya-Ching,Lin, Wei-Yu
supporting information, (2021/01/09)
In the presence of methylene group, selective N-methyl activation of tertiary amines has been accomplished with the aid of visible light using organic photocatalyst under air. This protocol explores numerous aliphatic and aromatic substituted tetra-hydroquinoline analogues from various tertiary amines and maleimides. Furthermore, this approach was applied to activate the methyl group of N-methyl carbazole to generate the biologically active molecule.
Formal anti-Markovnikov hydroamination of terminal olefins
Bronner, Sarah M.,Grubbs, Robert H.
, p. 101 - 106 (2014/01/06)
A new strategy to access linear amines from terminal olefin precursors is reported. This two-step, one-pot hydroamination methodology employs sequential oxidation and reduction catalytic cycles. The formal hydroamination transformation proceeds with excellent regioselectivity, and only the anti-Markovnikov product is observed. Up to 70% yield can be obtained from styrenes or aliphatic olefins and either primary or secondary aromatic amines. Additionally, the scope is broad with respect to the olefin and accommodates a variety of functionalities; we demonstrate that amines with removable aryl protecting groups may be utilized to allow access to a more diverse array of hydroamination adducts.