Iodine/CuI-mediated alkyne–carbonyl metathesis reaction: synthesis of 1-aryl-1,2-dihydrochromeno[2,3-b]azepine-3,6-dione
摘要:
Iodine/cuprous iodide-mediated intramolecular alkyne carbonyl metathesis reaction has been developed using 2,-(N-aryl-N-propargyl)aminochromone-3-carbaldehyde as the substrate. It led to the synthesis of hitherto unreported chromeno[2,3-b]azepine-3,6-dione. The special features of this methodology are mild reaction conditions, 100% atom economy and use of inexpensive reagents. This is the first example of I-2/Cul-mediated alkyne carbonyl metathesis reaction. (C) 2013 Elsevier Ltd. All rights reserved.
Iodine/CuI-mediated alkyne–carbonyl metathesis reaction: synthesis of 1-aryl-1,2-dihydrochromeno[2,3-b]azepine-3,6-dione
摘要:
Iodine/cuprous iodide-mediated intramolecular alkyne carbonyl metathesis reaction has been developed using 2,-(N-aryl-N-propargyl)aminochromone-3-carbaldehyde as the substrate. It led to the synthesis of hitherto unreported chromeno[2,3-b]azepine-3,6-dione. The special features of this methodology are mild reaction conditions, 100% atom economy and use of inexpensive reagents. This is the first example of I-2/Cul-mediated alkyne carbonyl metathesis reaction. (C) 2013 Elsevier Ltd. All rights reserved.
An unambiguous synthesis of dichromeno[2,3-b;3′,2′-e]pyridine-12,14-diones has been developed under mild conditions and their optical properties have been evaluated by studying UV-vis absorption and photoluminescence (PL) spectroscopy, cyclic voltammetry (CV) measurements, DFT calculations and thermogravimetric analysis.
已开发了在温和条件下双色[2,3- b ; 3',2' - e ]吡啶-12,14-二酮的明确合成方法,并且通过研究紫外可见吸收和光致发光(PL)评估了它们的光学性质光谱,循环伏安(CV)测量,DFT计算和热重分析。