• Journal of the Korean Chemical Society
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• v.31 no.1
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• pp.79-83
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• 1987

Trimethyl-and triphenyl-metal (IVA) methoxides were reacted with phenylisocyanate at various temperatures. Even at 100$^{\circ}C$, methyltrimethylsilyl ether, methyltriphenylsilyl ether and triphenyltin methoxide produced the cyclic dimer of phenylisocyanate, N,N'-diphenyluretidine-2,4-dione. But the other compounds produced only the cyclic trimer of phenylisocyanate, phenylisocyanurate. And above 200$^{\circ}C$, considerable amounts of diphenylcarbodiimide was formed by all the organometallic compounds. From these results, the mechanism of cyclic polymerization of phenylisocyanate by the organometal catalysts, and the correlation of substituents with the reactivity were discussed.

• Journal of the Korean Chemical Society
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• v.27 no.1
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• pp.53-57
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• 1983

Triethylgermyldiphenylphosphine was reacted with phenylisocyanate at various temperatures for three days in sealed ampoules. At $0^{\circ}C$, only N, N-diphenyluretidine-2,4-dione, a cyclic dimer of phenylisocyanate (35%), was formed. But at $20^{\circ}C$, phenylisocyanutrate, a cyclic trimer of phenylisocyanate (30%), was formed along with the dimer. At $50^{\circ}C$, diphenylcarbodiimide (55%) was given together with the compounds described above. At the higher reaction temperatures than $100^{\circ}C$, instead of the dimer and trimer of phenylisocyanate, 1,3,5-triphenyl-2,4,6-tris(phenylimino) hexahydro-1,3,5-triazine, a cyclic trimer of diphenylcarbodiimide (30%) and diphenylcarbodiimide (70%) were mainly produced. Triethylgermyldiphenylphosphine appears to act as a catalyst for the formation of the above cyclic compounds.

• Journal of the Korean Chemical Society
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• v.23 no.2
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• pp.111-114
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• 1979

• Journal of the Society of Cosmetic Scientists of Korea
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• v.11 no.1
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• pp.66-74
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• 1985

• Journal of the Korean Chemical Society
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• v.25 no.2
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• pp.119-123
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• 1981

Trimethyldiethylaminosilane, trimethylanilinosilane, trimethyldiethylaminostannane and trimethylanilinostannane were reacted with phenylisocyanate at various temepturares. All the reactions below $100^{circ}C$ gave only triphenylisocyanurate, but above $150^{circ}C$, diphenylcarbodiimide also was produced considerably. The reaction rate of anilinosilane was faster than that of aminosilane, but in the case of stannanes, the amino compound was more reactive.

• Journal of the Korean Chemical Society
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• v.17 no.3
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• pp.188-192
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• 1973

Reactions of trimethylsilylethylsulfide, trimethylsilylphenylsulfide, triethylstannylethylsulfide, and triethylstannylphenylsulfide with isocyanates were studied at various temperatures for 10 days. These Si-S and Sn-S bond compounds catalyzed the production of the cyclic dimer and trimer of phenylisocyanate, diphenylcarbodiimide and 1,3,5-triphenyl-4-phenyliminohexahydro-1,3,5-triazine-2,6-dione in the reaction of phenylisocyanate. In contrast, these compounds gave only the cyclic trimer, triethylisocyanurate, from ethylisocyanate.

• Journal of the Korean Chemical Society
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• v.32 no.6
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• pp.613-616
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• 1988

• Journal of the Korean Chemical Society
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• v.29 no.4
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• pp.459-461
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• 1985

• YAKHAK HOEJI
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• v.59 no.1
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• pp.6-11
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• 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 $1.55{\pm}0.08hr$.

• Journal of the Korean Chemical Society
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• v.15 no.6
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• pp.318-323
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• 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.