68141-13-9Relevant articles and documents
Mild environment-friendly oxidative debenzylation of N-benzylanilines using DMSO as an oxidant
Yoshinaga, Tatsuro,Iwata, Takayuki,Shindo, Mitsuru
, p. 191 - 194 (2020/02/25)
Oxidative debenzylation of N-benzyl aromatic amines using DMSO as a non-toxic oxidant and catalyzed by TsOH gave Nphenylimines, which were spontaneously hydrolyzed to form anilines and benzaldehydes in good yields. This reaction employs mild, metal-free conditions. The conditions are also suitable for the debenzylation of benzylphenylethers.
Highly Enantioselective Direct Synthesis of Endocyclic Vicinal Diamines through Chiral Ru(diamine)-Catalyzed Hydrogenation of 2,2′-Bisquinoline Derivatives
Ma, Wenpeng,Zhang, Jianwei,Xu, Cong,Chen, Fei,He, Yan-Mei,Fan, Qing-Hua
supporting information, p. 12891 - 12894 (2016/10/04)
An asymmetric hydrogenation of 2,2′-bisquinoline and bisquinoxaline derivatives, catalyzed by chiral cationic ruthenium diamine complexes, was developed. A broad range of chiral endocyclic vicinal diamines were obtained in high yields with excellent diastereo- and enantioselectivity (up to 93:7 dl/meso and >99 % ee). These chiral diamines could be easily transformed into a new class of chiral N-heterocyclic carbenes (NHCs), which are important but difficult to access.
Amino-substituted imidazo[1,2-a:3,4-a']diquinolin-15-ium salts compositions and method of use
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, (2008/06/13)
Amino-substituted imidazo[1,2-a:3,4-a']diquinolin-15-ium salts having the formula I: STR1 wherein R1 is hydrogen, lower alkyl, C4 -C6 cycloalkyl, di(lower alkyl)amino, 1-azetidinyl, 1-pyrrolidinyl, 1-piperidinyl, methyl-1-pyrrolidinyl, methyl-1-piperidinyl, 4-morpholinyl or 2,2-dimethylhydrazino; R2 is hydrogen, lower alkyl, lower alkylamino, di(lower alkyl)amino, C4 -C6 cycloalkylamino, lower alkoxy(lower alkyl)amino, 1-azetidinyl, 1-pyrrolidinyl, 1-piperidinyl, methyl-1-pyrrolidinyl, methyl-1-piperidinyl, hexahydro-1H-azepin-1-yl, 4-morpholinyl, benzylamino, N-methylbenzylamino or 2-phenylethylamino; R3 is hydrogen or methyl; X is an anion; with the proviso that at least one of R1 and R2 is other than hydrogen, lower alkyl or C4 -C6 cycloalkyl; and with the further proviso that when R2 is dimethylamino, at least one of R1 and R3 is other than hydrogen, and intermediates used in the preparation thereof are disclosed. The compounds of the invention are prepared by amination of the corresponding chloro or fluoro-substituted imidazo [1,2-a:3,4-a']diquinolin-15-ium salts; either the halo substituted intermediates or the amino substituted salts may be further treated, typically using ion exchange techniques to obtain a variety of physiologically acceptable amino-substituted [1,2-a:3,4-a']diquinolin-15-ium salts which exhibit antifungal activity.