Electric Literature of 108-47-4, Chemical engineers work across a number of sectors, processes differ within each of these areas, and are directly involved in the design, development, creation and manufacturing process of chemical products and materials. 108-47-4, Name is 2,4-Dimethylpyridine, molecular formula is C7H9N. In a Article，once mentioned of 108-47-4
Various N-<(2-haloaryl)methyl>pyridinium, N-(arylmethyl)-2-halopyridinium and N-(2-halobenzyl)isoquinolinium salts have been synthesized and their intramolecular photocyclization reactions studied.Upon irradiation the aqueous solution of N-<(2-haloaryl)methyl>pyridinium and N-arylmethyl-2-halopyridinium salts 1, 2 were cyclized to give isoindolium salts.In contrast to the pyridinium salts 1, 2, the aqueous solution of N-(2-halobenzyl)isoquinolinium salts 3 appear not to undergo photocyclization.N-Benzyl-2-chloropyridinium salts 1c is more reactive than N-(2-chlorobenzyl)pyridinium salt 1a in the photocyclization.N-(2-Chlorobenzyl)-2-chloropyridinium salt 1d is three times more reactive than 1c.A mechanism of ?-complex formation of the halogen moiety of the pyridinium ring with the phenyl ring is suggested for the reactive pyridinium salt.The triplet energy of the isoquinolinium salts 3 is too low to photocyclize.
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Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis