111154-10-0Relevant articles and documents
Phosphorescent Cyclometalated Platinum(II) Imidazolinylidene Complexes
Stipurin, Sergej,Strassner, Thomas
, p. 804 - 813 (2021/02/05)
We present the synthesis and characterization of six novel bidentate (Formula presented.) cyclometalated platinum(ii) complexes derived from saturated N-heterocyclic carbene precursors, namely 1-aryl-3-methyl-1H-4,5-dihydroimidazolium salts. The title compounds were then synthesized by a multi-step reaction, which includes an in situ generation of the silver carbene complex, followed by transmetalation to platinum and subsequent introduction of the β-diketonate ligand. Structural characterization by NMR experiments and solid-state structures prove the cyclometalation and the saturated backbone of the NHC motif. Photophysical and electrochemical properties of the platinum(ii) complexes were examined and studied in detail by DFT calculations. The title compounds are strongly emissive at room temperature in the sky-blue region of the visible spectrum and show quantum yields of up to 71 % in a PMMA matrix.
Metal-free Carbon Monoxide (CO) Capture and Utilization: Formylation of Amines
Noh, Hyeong-Wan,An, Youngjoon,Lee, Seulchan,Jung, Jaehoon,Son, Seung Uk,Jang, Hye-Young
, (2019/04/26)
The capture and utilization of CO by 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) were performed in the absence of transition-metal complexes. The reaction of TBD with CO afforded TBD-CO adducts, which were converted to formylated TBD (TBD-CHO). TBD-CO adducts may include an interaction of CO with positively charged species based on NMR and IR analysis. In the presence of amines, CO was transferred from TBD-CO to amines, producing formylated amines with good yields. The reaction mechanism involving TBD-CO adducts is presented based on theoretical calculations. (Figure presented.).
5-Lipoxygenase inhibitors: Synthesis and structure-activity relationships of a series of 1-aryl-2H,4H-tetrahydro-1,2,4-triazin-3-ones
Bhatia, Pramila A.,Brooks, Clint D. W.,Basha, Anwer,Ratajczyk, James D.,Gunn, Bruce P.,Bouska, Jennifer B.,Lanni, Carmine,Young, Patrick R.,Bell, Randy L.,Carter, George W.
, p. 3938 - 3950 (2007/10/03)
Synthetic routes were developed to access a variety of novel 1-aryl- 2H,4H-tetrahydro-1,2,4-triazin-3-one analogs which were evaluated as 5- lipoxygenase (5-LO) inhibitors. The parent structure, 1-phenylperhydro- 1,2,4-triazin-3-one (4), was found to be a