Pyridinium N-heteroarylaminides: synthesis of N-heteroaryltetramines based on 1,6-bis(phenoxy)hexane and 1,3-bis(phenoxymethyl)benzene
摘要:
The synthesis of a set of new N-heteroaryltetramines is reported. A regioselective alkylation on the N-exo nitrogen of pyridinium N-(heteroaryl)aminide with the corresponding tetrabromo compounds, followed by a clean N-N bond reduction of the corresponding tetra-salts, allowed an easy and general method to obtain N, N', N"', A"" -tetrakis(2-heteroaryl) tetra mines. (c) 2007 Elsevier Ltd. All rights reserved.
compounds were characterized by IR, 1H, 11B and 13C NMR spectroscopy, and the crystal structure of closo-3 was analysed by X-ray diffraction. The carboranyl fragments are bonded through CH2 units to different organic moieties, and their influence on the photoluminescent properties of the final molecules has been studied. All the closo- and nido-carborane derivatives exhibit a blue emission under ultraviolet
The synthesis of a set of new N-heteroaryltetramines is reported. A regioselective alkylation on the N-exo nitrogen of pyridinium N-(heteroaryl)aminide with the corresponding tetrabromo compounds, followed by a clean N-N bond reduction of the corresponding tetra-salts, allowed an easy and general method to obtain N, N', N"', A"" -tetrakis(2-heteroaryl) tetra mines. (c) 2007 Elsevier Ltd. All rights reserved.