Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Takeshi Komiyama"'
Publikováno v:
Chemistry Letters. 48:361-363
Aryl(triethyl)silanes were found to cross-couple with aryl chlorides by palladium/copper dual catalysis and XPhos as a crucial ligand. The catalyst system is applicable to a facile oligothiophene s...
Autor:
Tamejiro Hiyama, Takeshi Komiyama, Osamu Goto, Shu-ichi Uno, Hideyuki Ikehira, Yasunori Minami, Kenta Shimizu
Publikováno v:
Synlett. 28:2407-2410
Nickel-catalyzed N-arylation reaction of N-trimethylsilyl-carbazole using aryl bromides is found to proceed in the presence of sodium acetate, giving N-aryl-carbazoles in high yields. Under these conditions, N-trimethylsilyl-carbazole could react wit
Publikováno v:
Synlett. 28:1873-1884
The silicon-based cross-coupling reaction has attracted much attention over recent decades because there are many advantages in using organosilicon compounds. However, the use of reagents with a triorganosilyl group as a key function remains to be es
Publikováno v:
ACS Catalysis. 7:631-651
Organosilicon compounds act as a nucleophile upon activation by an appropriate base and behave in a manner similar to main-group organometallic reagents. In the last decades, structurally divergent organosilicon reagents are available and have become
Publikováno v:
Angewandte Chemie International Edition. 55:15787-15791
Aryl(triethyl)silanes are found to undergo cross-coupling with iodoarenes in the presence of catalytic amounts of CuBr2 and Ph-Davephos, as well as cesium fluoride as a stoichiometric base. Because the silicon reagents are readily accessible through
Publikováno v:
Chemistry Letters. 47:1048-1050
We report that simple aryl(trialkyl)silanes undergo cross-coupling reaction with alkyl (pseudo)halides in the presence of copper iodide/phenanthroline catalyst and cesium fluoride. Various aryl(trialkyl)silanes and alkyl electrophiles having iodine,
Autor:
Osamu Goto, Tamejiro Hiyama, Takeshi Komiyama, Hideyuki Ikehira, Yasunori Minami, Kenta Shimizu
Publikováno v:
Bulletin of the Chemical Society of Japan. 88:1437-1446
Carbon–nitrogen bond-forming cross-coupling reaction of haloarenes with N-trimethylsilyl (TMS)-substituted secondary and primary arylamines proceeded with the aid of a palladium catalyst and a fluo...
Publikováno v:
Angewandte Chemie (International ed. in English). 57(7)
Whereas aryl(trialkyl)silanes are considered to be ideal organometallic reagents for cross-coupling reactions owing to their stability, low toxicity, solubility, and easy accessibility, they are generally inert under typical cross-coupling conditions
Autor:
Takeshi Komiyama, Takatoshi Yagisawa, Hideki Oku, Kazuhiro Tanaka, Osamu Daikuhara, Tatsuhiro Mori, Satoshi Ide, Rie Tsudome
Publikováno v:
SPIE Proceedings.
Interconnects have been more important in high-performance computing systems and high-end servers beside its improvements in computing capability. Recently, active optical cables (AOCs) have started being used for this purpose instead of conventional
Publikováno v:
Chemistry Letters. 44:1065-1067
Straightforward C–H silylation of heteroarenes and alkenes was found to provide efficient access to organo-HOMSi reagents as stable silicon reagents for cross-coupling. Various heteroarenes and ter...