93073-02-0Relevant academic research and scientific papers
Coumarin-pyrrolizinone synthetic method of compound
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Paragraph 0027; 0100; 0101; 0103; 0104, (2016/11/21)
The invention discloses a synthetic method of a coumarin-pyrrole compound. The synthetic method comprises the following step of: in a reactive solvent, with 4-amino coumarin compounds and disubstituted acetylene compounds as raw materials, under the catal
Palladium-catalyzed oxidative annulation via C-H/N-H functionalization: Access to substituted pyrroles
Peng, Shiyong,Wang, Lei,Huang, Jiayao,Sun, Shaofa,Guo, Haibing,Wang, Jian
, p. 2550 - 2557 (2013/10/21)
Pyrroles, ubiquitous bioactive heterocycles in nature, are readily prepared via a palladium-catalyzed oxidative annulation of cyclic trans-enamines to various internal alkynes in the absence of a directing group. Copyright
Synthesis of 3-Substituted 5(H)-Oxobenzopyranopyridines and 2,3-Diaryl-4(H)-oxobenzoypyrano-pyrroles
Joshi, S. D.,Sakhardande, V. D.,Seshadri, S.
, p. 206 - 208 (2007/10/02)
A novel synthesis of coumarins with a pyridine or pyrrole ring fused at 3,4-postion is described.It involves the reaction of 4-aminocoumarin (II) with substituted malonaldehydes and benzoins to afford 3-substituted 5(H)-oxobenzopyranopyridines (IV, VI) and 2,3-diaryl-4(H)-oxobenzoypyranopyrroles (VIII,IX), respectively.Th pyrrolocoumarins (VIII,IX) produce strongly fluorescent green solution in alklai but do not exhibit much fluorescence in neutral solution.
