30241-64-6Relevant academic research and scientific papers
Heterocyclic analogs of xanthiones: 5,6-fused 3-methyl-1-phenylpyrano[2,3- c]pyrazol-4(1H) thiones - Synthesis and NMR (1H, 13C, 15N) data
Huemer, Valerie,Eller, Gernot A.,Holzer, Wolfgang
, p. 476 - 482 (2010)
Various [5,6]pyrano[2,3-c]pyrazol-4(1H)-thiones were synthesized in high yields by treatment of the corresponding [5,6]pyrano[2,3-c]pyrazol-4(1H)-ones with Lawesson's reagent. Detailed NMR spectroscopic studies were undertaken of the title compounds. Comp
Copper-Catalyzed Tandem O-Arylation-Oxidative Cross Coupling: Synthesis of Chromone Fused Pyrazoles
Obulesu, Owk,Babu, K. Harish,Nanubolu, Jagadeesh Babu,Suresh, Surisetti
, p. 2926 - 2934 (2017/03/23)
Intermolecular tandem copper-catalyzed O-arylation-oxidative acylation (cross dehydrogenative coupling-CDC) has been developed under air as an oxidant. The reaction between 2,4-dihydro-3H-pyrazol-3-ones and ortho-halo aryl carboxaldehydes furnished the co
