862201-24-9Relevant academic research and scientific papers
A modular synthesis of unsymmetrical tetraarylazadipyrromethenes
Hall, Michael J.,McDonnell, Shane O.,Killoran, John,O'Shea, Donal F.
, p. 5571 - 5578 (2005)
A stepwise route to unsymmetrical tetraarylazadipyrromethenes by a condensation of 2,4-diaryl-5-nitroso-pyrroles with 2,4-diarylpyrroles is described. This modular building-block approach allows for the introduction of up to four different aryl substituents on the azadipyrromethene and is tolerant of a varied substituent set. An efficient synthesis of the 2,4-diarylpyrroles building blocks from 1,3-diaryl-4-nitro-butan-1-ones by nitro hydrolysis to a keto-aldehyde and subsequent ammonia condensation reaction has been achieved. The facile conversion of 2,4-diarylpyrroles into their α-nitroso analogues by their reaction with sodium nitrite generated the second building block required for the synthesis.
1,2,4-Triphenylpyrroles: Synthesis, Structure and Luminescence Properties
Ferreira, Joana R. M.,Guieu, Samuel,Nunes Da Silva, Raquel,Rocha, Jo?o,Silva, Artur M. S.
supporting information, p. 632 - 634 (2020/03/27)
Pyrroles are widely found in natural products and play an important role in biological processes. Certain pyrrole derivatives are fluorescent and may be used as molecular probes or biomarkers in the diagnosis of diseases, such as Alzheimer's or Parkinson'
