Facile route for N1-aryl benzotriazoles from diazoamino arynes via CuI-mediated intramolecular N-arylation
摘要:
A facile and high-yielding protocol for diverse benzotriazoles through intramolecular N-arylation of different o-chloro-1,2,3-benzotriazenes using Cul/Cs2CO3 has been developed. (C) 2010 Elsevier Ltd. All rights reserved.
1,3-Diaryltriazenes: a new class of anorectic agents
作者:David T. Hill、Kerry G. Stanley、Janice E. Karoglan Williams、Bernard Loev、Phillip J. Fowler、James P. McCafferty、Edward Macko、Charles E. Berkoff、Christine B. Ladd
DOI:10.1021/jm00360a015
日期:1983.6
A series of substituted 1,3-diaryltriazenes has been synthesized and tested for anorectic activity. Several members of the series were effective; one compound, 1,3-bis[2-cyano-5-(trifluoromethyl)phenyl]triazene, was particularly active, causing weight loss in rats, dogs, and squirrel monkeys. It was devoid of overt central nervous system activity, and compared to previously reported biologically active
In the presence of Et3N, the reaction of 1, 3-bis[(2-chloro)benzene]triazene (HL) with CuCl or AgNO3 gives the triazenide complexes Cu2(L)2} (1) and Ag2(L)2} (2), respectively. The X-ray crystal structures of both complexes were obtained. The metal–metal distances (Cu···Cu and Ag···Ag) are 2.4974(5) and 2.7208(5) A, respectively.
A sugar-based photoresponsive supergelator, N-glycosylazobenzene that shows selective gelation of aromatic solvents is described. The partial trans-cis isomerization of the azobenzene moiety allows photoinduced chopping of the entangled gel fibers to short fibers, resulting in controlled fiber length and gel-sol transition. The gelator is useful for the selective removal of toxic aromatic solvents from water.
Synthesis and electro-catalytic properties of a dinuclear palladium(I) 1,3-bis[(2-chloro)benzene]triazenide complex
The reaction of 1,3-bis[(2-chloro)benzene]triazene (HL) and [Pd(CH3CN)(4)]Cl-2 gave a new dinuclear triazenido complex [Pd2L2] 1 (L = 1,3-bis[(2-chloro)benzene]triazene ion). Electrochemcial studies showed that complex 1 is capable of generating hydrogen from acetic acid in CH2Cl2. (C) 2013 Elsevier B.V. All rights reserved.
Niementowski, Chemisches Zentralblatt, 1902, p. II,938