Non-aromatic heterocyclic compounds containing substituted benzylamino nitrogenThe present invention relates to novel substituted benzylamino nitrogen containing nonaromatic heterocycles and, specifically, to compounds of formula (I) wherein W, R<1>, R<2>, R<3> and A are as defined in the ...
The conditions for the C-N bond forming reaction (C-N coupling reaction) between α-bromocarboxylate and nitrogen-containing non-aromatic heterocyclic rings under heterogeneous copper(I) oxide catalysis are investigated in this paper. All the generated compounds were fully characterized by IR, NMR an...
The review deals with the metal-catalyzed synthetic methods used for the construction of 5-membered nitrogen-containing aromatic and nonaromatic heterocycl... G Varvounis,IE Gerontitis,V Gkalpinos - 《Chemistry of Heterocyclic Compounds》 被引量: 0发表: 2018年 ChemInform Abstract: Synthesis of Is...
The distortion in square planar complexes with chelated planar aromatic ligands such as 2,2′-bipyridine has been described by a number of authors; several different modes of distortion have been analyzed and reported, from the simple tetrahedral and square pyramidal distortions, related to the four...
(b) introduction of selected heterocycles; (c) replacing linker nitrogen atom with oxygen bridging the aromatic moieties; (d) introduction of more sp3 carbons to improve physico-chemical properties; (e) addition of bulk to the middle-linker part of the molecules to take advantage of hydrophobic ...
Consequently many investigators in search of suitable solvents have concentrated on aliphatic and aromatic nitrogen- and oxygen-containing compounds with some attention given to organic sulfur-, phosphorus- and arsenic-containing compounds. The results of this search have not been entirely satisfactory ...
(2C-4C)alkyl, aryl or aryl(1C-2C)alkyl; or R 1 and R 2 together with the nitrogen form an aromatic or non-aromatic heterocyclic ring structure, optionally mono- or poly-substituted with (1C-4C)alkyl, (2C-4C)alkenyl, hydroxy(1C-2C)alkyl, (1C-2C)alkoxy(1C-3C)alkyl or aryl...
Biodegradation of aromatic and heterocyclic compounds requires an oxidative ring cleavage enzymatic step. Extensive biochemical research has yielded mechanistic insights about catabolism of aromatic substrates; yet much less is known about the reaction mechanisms underlying the cleavage of heterocyclic compounds...
The calculated nucleus-independent chemical shift (NICS) values for these two compounds are negative, which indicates that the core rings of compounds 1 and 2 have a certain amount of aromaticity. However, deep electronic analysis reveals that neither of these two formal 4-electron four-membered ...
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