• 제목/요약/키워드: phenylisocyanate

검색결과 17건 처리시간 0.023초

Trimethyl- 및 Triphenyl-metal(Ⅳ) methoxide와 phenylisocyanate의 반응 (Reactions of Trimethyl-and Triphenyl-Metal(Ⅳ) Methoxide with Phenylisocyanate)

  • 김갑주;서배석;이명재;박성우;이일규
    • 대한화학회지
    • /
    • 제31권1호
    • /
    • pp.79-83
    • /
    • 1987
  • Triphenylmetal(IVA) methoxide 또는 triphenylmetal(IVA) methoxide와 phenylisocyanate를 1 : 500mole비로 혼합하여 여러온도에서 반응시켰다. Methyltrimethylsilyl ether, methyltriphenylsilyl ether 및 triphenyltin methoxide는 100$^{\circ}C$에서도 phenylisocyanate의 cyclid dimer(N,N'-diphenyluretidine-2,4-dione)를 생성하였으나, 다른 화합물들은 주로 cyclic trimer(phenylisocyanate)만을 생성하였다. 또한 200$^{\circ}C$이상에서는 모든 화합물들이 상당량의 diphenylcarbodiimide를 생성하였다. 이와 같은 반응결과로부터 phenylisocyanate의 cyclic polymerization의 mechanism과 (p-d)$\pi$ overlap에 대한 금속의 치환기 효과를 고찰하였다.

  • PDF

Triethylgermyldiphenylphosphine과 Phenylisocyanate의 반응 (Reactions of Triethylgermyldiphenylphosphine with Phenylisocyanate)

  • 박성우;이일규
    • 대한화학회지
    • /
    • 제27권1호
    • /
    • pp.53-57
    • /
    • 1983
  • Triethylgermyldiphenylphosphine과 phenylisocyanate를 1:10 mole 비로 ampoule 속에서 혼합하여 여러 온도에서 반응시켰다. 그 결과 $0^{\circ}C$에서는 phenylisocyanate의 고리화 2합체인 N, N-diphenyluretidine-2,4-dione만이, $20^{\circ}C$에서는 phenylisocyanate의 고리화 3합체인 triphenylisocyanurate가 함께 생성되었으며, $50^{\circ}C$에서는 위의 생성물 이외에 diphenylcarbodiimide가 생성되었다. 또한 $100^{\circ}C$이상에서는 2합체는 생성되지 않고, diphenylcarbodiimide와 1,3,5-triphenyl-2,4,6-tris(phenylimino) hexahydro-1,3,5-triazine이 주로 생성되었다. 그리고 Triethylgermyldiphenylphosphine은 상기 고리 화합물들의 생성에 촉매로 작용하였다.

  • PDF

Trimethylsilylamine 및 Trimethylstannylamine 과 Phenylisocyanate 와의 반응 (The Reaction of Trimethylsilylamines and Trimethylstannylamines with Phenylisocyanate)

  • 김갑주;이일규
    • 대한화학회지
    • /
    • 제25권2호
    • /
    • pp.119-123
    • /
    • 1981
  • Trimethyldiethylaminosilane, trimethylanilinosilane, trimethyldiethylaminostannane 및 trimethylanilinostannane 을 phenylisocyanate와 20, 50, 100 및 $150^{circ}C$에서 각각 3일간 반응시켰다. 모든 경우, $100^{circ}C$ 이하에서는 triphenylisocyanurate만이, $150^{circ}C$ 이상에서는 triphenylisocyanurate와 함께 diphenylcarbodiimide도 상당량 생성되었다. 그 반응속도는 silane의 경우는 anilino 화합물이 diethylamino 화합물보다 빨랐으나, stannane의 경우에는 anilino 화합물이 diethylamino화합물보다 오히려 늦었다

  • PDF

Organosilyl 및 Organostannyl-Sulfide와 Isocyanate의 반응 (Reactions of Organosilyl and Organostannyl-Sulfides with Isocyanates)

  • 한송윤;이동율;이일규;백우현
    • 대한화학회지
    • /
    • 제17권3호
    • /
    • pp.188-192
    • /
    • 1973
  • Trimethylsilylethylsulfide, trimethylsilylphenylsulfide, triethylstannylethylsulfide 그리고 triethylstannylphenysulfide를 10일간 여러온도에서 isocyanate와 각각 반응시켰다. 이들 Si-S와 Sn-S결합 유기금속화합물들은 phenylisocyanate의 이량체, 삼량체, diphenylcarbodiimide 및 1,3,5-triphenyl-4-phenyliminohexahydro-1,3,5-triazine-2,6-dione의 생성 촉매로 작용하였다. 반면 이 화합물들은 ethylisocyanate로부터는 삼량체인 triethylisocyanurate만을 생성하였다.

  • PDF

HPLC-UV를 이용한 혈청 이세파마이신 정량: 약물동태학적 연구 (A Simple HPLC-UV Method for the Quantification of Isepamicin in Human Serum: Pharmacokinetic Applications)

  • 황은경;전성실;신영희
    • 약학회지
    • /
    • 제59권1호
    • /
    • pp.6-11
    • /
    • 2015
  • A simple HPLC-UV method was developed and validated for the quantification of human serum isepamicin using phenylisocyanate as a derivatization agent. The linear calibration curve was obtained in the concentration range of $1{\sim}100{\mu}g/ml$ and LLOQ of $1{\mu}g/ml$. This method was validated with selectivity, linearity, precision and accuracy, leading to successful application for estimating the pharmacokinetic parameters of isepamicin in Korean healthy subjects following IV infusion of 800 mg isepamicin. The mean $t_{1/2}$ of isepamicin was $1.55{\pm}0.08hr$.

트리메틸실릴디페닐포스핀과 이소시아네이트와의 반응 (Reactions of Trimethylsilyldiphenylphosphine with Isocyanates)

  • 한송윤;민태진;이동율;이일규
    • 대한화학회지
    • /
    • 제15권6호
    • /
    • pp.318-323
    • /
    • 1971
  • Reactions of trimethylsilyldiphenylphosphine with phenylisocyanate and ethylisocyanate were studied at various temperatures for 3 days. Trimethylsilyldiphenylphosphine gave cyclic dimer, cyclic trimer and diphenylcarbodiimide from phenylisocyanate, but gave cyclic trimer, triethylisocyanurate, only from ethylisocyanate. In these reactions, it is suggested that trimethylsilyldiphenylphosphine was used to be an effective catalyst for cyclization of isocyanates.

  • PDF