• Bulletin of the Korean Chemical Society
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• 제4권4호
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• pp.180-183
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• 1983

The reaction of $IrClH_2(CO)(Ph_3P)_2$ ($Ph_3P$=triphenylphosphine) with acrylonitrile (AN) produces a stoichiometric amount of propionitrile (PN) at $100^{\circ}C$ under nitrogen, which suggests that the catalytic hydrogenation of AN to PN with $IrCl(CO)(Ph_3P)_2$ proceeds through the hydride route where the formation of the dihydrido complex, $IrClH_2(CO)(Ph_3P)_2$ is the initial step. The rate of the hydrogenation of AN to PN with $IrCl(CO)(Ph_3P)_2$ is decreased by the presence of excess $Cl^-$ in the reaction system, which suggests that $Cl^-$ is the dissociating ligand in the catalytic cycle. It has been also found that the rate of the hydrogenation increases with inercase both in hydrogen pressure and in concentration of free $Ph_3P$, and with decrease in AN concentration in the reaction system.

• Bulletin of the Korean Chemical Society
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• 제18권3호
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• pp.324-327
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• 1997

Water soluble iridium complex, IrCl(CO)(TPPTS)2·χH2O (1) (TPPTS=m-trisulfonated triphenylphosphine) has been prepared from the reaction of a water soluble complex, IrCl(COD)(TPPTS)2·6H2O (COD=l,5-cyclooctadiene) with CO and unambiguously characterized by electronic absorption, 31P NMR, 13C NMR and IR spectral data. Complex 1 catalyzes the hydration of terminal alkynes to give ketones in aqueous solutions at room temperature. The rate of PhC≡CH hydration dramatically increases with addition of MeOH to the reaction mixture in H2O, which is understood in terms of i) the excellent miscibility between H2O and MeOH and ii) the assumed catalytic hydration pathway involving the initial formation of (alkyne)IrCl(CO)(TPPTS)2.

• Bulletin of the Korean Chemical Society
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• 제27권11호
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• pp.1907-1909
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• 2006

• Bulletin of the Korean Chemical Society
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• 제14권4호
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• pp.424-425
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• 1993

• Bulletin of the Korean Chemical Society
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• 제12권4호
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• pp.456-456
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• 1991

• 대한화학회지
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• 제27권5호
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• pp.368-375
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• 1983

5-아릴-1,3,4-옥시티아졸-2-온을 트리에틸포스파이트와 반응시키면 탈황반응에 의해 벤조니트릴과 에틸포스포로티오에이트가 66~94% 수득율로 얻어졌다. 다른 3가의 인화합물 즉, 트리메틸포스파이트, 트리에틸포스핀, 그리고 트리페닐포스핀들과도 같은 탈황반응이 관찰되었다. 그러나 트리페닐포스파이트와는 전혀 반응하지 않았다. 5-아릴-1,3,4-디티아졸-2-온을 트리페닐포스핀과 반응시키면 티오아실 이소시아네이트가 얻어졌다. 이것은 에테르에서 자체적으로 분해되어 벤조니트릴로 변하게 되나 클로로포름에서는 안정하다. 이 두 반응에서 관찰되는 탈황반응은 인이 고리속으로 들어가 고리를 늘인후 분자내에서의 자리옮김 반응에 의해 일어나는 것이라 생각된다. 클로로포름에서 안정한 티오아실 이소시아네이트는 이민과 1,4-고리화 첨가반응을 일으켜 티아다이아지논을 생성하였다.

• 대한화학회지
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• 제26권4호
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• pp.253-255
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• 1982

• Bulletin of the Korean Chemical Society
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• 제31권1호
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• pp.171-173
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• 2010

• Bulletin of the Korean Chemical Society
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• 제10권3호
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• pp.321-322
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• 1989

• Bulletin of the Korean Chemical Society
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• 제20권3호
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• pp.341-344
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• 1999

The hydrazones of 2-acetylfuran, 2-acetylthiophene, and 2-acetylpyrrole, were allowed to react with S-methylthioacetimidate hydroiodide (8) to give azinoureas 10, and the reaction of 10 with Appel's dehydration conditions (triphenylphosphine/carbon tetrachloride/triethylamine) led to the corresponding azinocarbodiimides 11, which underwent thermal rearrangement under the reaction conditions to give 1,1-diheteroaryl ethylenes 13.