89691-10-1Relevant academic research and scientific papers
Synthesis, characterization and electroluminescence properties of new iridium complexes based on cyclic phenylvinylpyridine derivatives: Tuning of emission colour and efficiency by structural control
Takizawa, Shin-Ya,Sasaki, Yuka,Akhtaruzzaman,Echizen, Hidenori,Nishida, Jun-Ichi,Iwata, Takeshi,Tokito, Shizuo,Yamashita, Yoshiro
, p. 841 - 849 (2008/02/04)
A series of phosphorescent cyclometalated iridium(iii) complexes 4-6 with new ligands of bicyclic phenylvinylpyridines have been synthesized and systematically examined for their photophysical, electrochemical and electroluminescence (EL) properties. All
A facile synthesis of α,α′-bis(substituted-benzylidene)-cycloalkanones and substituted-benzylidene heteroaromatics: utility of NaOAc as a catalyst for aldol-type reaction
Motiur Rahman,Jeong, Byeong-Seon,Kim, Dong Hyeon,Park, Jung Ki,Lee, Eung Seok,Jahng, Yurngdong
, p. 2426 - 2431 (2007/10/03)
Utility of NaOAc in glacial HOAc as a catalyst for aldol-type condensation reactions was examined. Reactions of cycloalkanones and selected heteroaromatics with various aldehydes in the presence of NaOAc in glacial HOAc provided α,α′-bis(substituted-benzylidene)cycloalkanones and substituted-benzylidene heteroaromatics, respectively, in good yields.
Acylated, heteroaryl-condensed cycloalkenylamines and their use as pharmaceuticals
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Page/Page column 26, (2010/02/05)
The present invention relates to acylated, heteroaryl-condensed cycloalkenylamines of the formula I, in which A, R1, R2, R3, R4, R5 and n have the meanings indicated in the claims. The compounds of fo
A Light-Induced Unusual Synthesis of Substituted 3-Azaquinolizinones
Baum, Gerhard,Friderichs, Alois,Kuemmell, Andreas,Massa, Werner,Seitz, Gunther
, p. 411 - 416 (2007/10/02)
We describe the photochemical transformations of the cycloalkane-annulated pyridinium-N-aminides 8-10, which are conjugated with a benzylidene system.With 8, 1,3-electrocyclisation takes place leading to the cyclopenta-1,2-diazepine 25 via the diazanorcaradiene 12 which subsequently underwent valence tautomerisation.Contrary to 8, with 9 and 10, 1,5-electrocyclisation is dominating yielding 14 and 15 as nonisolable intermediates; these rearrange in a rationalized reaction sequence e.g. 29 -> 30a 30b -> 26 to give the novel 3-azaquinolizinones 26 and 27, respectively.The structure of 27 is proven by X-ray diffraction.
Polyaza Cavity Shaped Molecules. Annelated Derivatives of 2-(2'-Pyridyl)-1,8-naphthyridine and 2,2'-Bi-1,8-naphthyridine
Thummel, Randolph P.,Lefoulon, Francois,Cantu, David,Mahadevan, Ramanathan
, p. 2208 - 2212 (2007/10/02)
A two-step method is presented for the oxidation of the 2-methylene position of 2,3-cycloalkenopyridines.The pyridyl ketones thus obtained may be reacted with 2-aminonicotinaldehyde to yield 3,3'-annelated derivatives of 2-(2'-pyridyl)-1,8-naphthyridine.T
