118987-66-9Relevant academic research and scientific papers
THE REACTION OF ORTHO-SUBSTITUTED AROMATIC AZIDES WITH BORON TRICHLORIDE OR TRIFLUORIDE
Spagnolo, Piero,Zanirato, Paolo
, p. 2615 - 2620 (1988)
The reactiont of boron trichloride or trifluoride with ortho-aryl, -diazoaryl, and -arylazoaryl phenyl azides in benzene at room temperature generally gives fused azoles in high yields.Treatment of 2-nitrophenyl azide with boron trichloride mainly affords chlorinated nitroanilines, whereas with boron trifluoride it gives N-o-nitrophenylaniline.In aromatic solvents at 60 deg C in the presence of boron trifluoride-diethyl ether, 2-azidobiphenyl forms carbazole and 2-(arylamino)biphenyls, the formation of which depends greatly upon the nucleophilicity of the solvent used; however, its pseudo-first-order decomposition rate is slightly greater in benzene than in toluene or m-xylene.Under the same conditions, phenyl azide forms diarylamines.The results suggest that singlet nitrenium ions, arising from the corresponding azidetrihalogenoborane complexes by loss of molecular nitrogen, are generally the reactive intermediates.
Materials for electronic devices
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Paragraph 0243; 0244; 0245; 0246; 0247, (2016/10/08)
The invention relates to compounds with benzindenofluorene base bodies and to the use thereof in electronic devices, in particular in organic electroluminescent devices.
