77979-00-1Relevant academic research and scientific papers
Pyrrolinones, IV Pyrrolin-2-ones with Electron Attracting Substituents in the &β-Positions
Dobeneck, Henning von,Brunner, Enno,Bunke, Holger,Metzner, Gerhard,Schmidt, Ruediger,et al.
, p. 410 - 424 (2007/10/02)
The pyrrolinones 3-7, synthesized from maleic acid derivatives and enamines and also their reaction products 8-24 are described.By comparison with the classic-type dipyrromethenes 26, 30 and 31 the dipyrromethenes 27 as well as 25, 28 and 29 are shown to exist as lactams (neo-type dipyrromethenes).In basic solution 27 exhibits a deep blue colour which is unusual for dipyrromethenes.
