103021-71-2Relevant articles and documents
Nitrogen heterocyclic ring-containing organic electroluminescent compound as well as preparation method and application thereof
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Paragraph 0102; 0105; 0106, (2021/03/13)
The invention provides a nitrogen heterocyclic ring-containing organic electroluminescent compound, as well as a preparation method and application thereof. The nitrogen heterocyclic ring-containing organic electroluminescent compound has a structure as s
Competition in Intramolecular Arylation of Triphenylmethanols
Bolton, Roger,Mguni, Raphael S.,Williams, Gareth H.
, p. 405 - 408 (2007/10/02)
Six new unsymmetrically substituted derivatives of 2-aminotriphenylmethanol (1) have been synthesised.The direction of ring closure following diazotisation and loss of nitrogen is determined by the nature of the intermediates formed.Where aryl radical intermediates are formed, the selectivity parallels that found in intermolecular competition by phenyl radicals, whereas copper-catalysed decomposition of the diazonium ion leads to intermediates which seem, from their selectivity, to possess considerable cationic nature.The slower thermal decomposition of the diazonium ions unexpectedly shows very little selectivity, suggesting that electrostatic interactions predominate in determining a very short lifetime of the crucial intermediate.