http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Mn(III)-, Fe(III)-porphyrin 유도체를 촉매제로 한 시클로올레핀 화합물의 산화반응
나훈길,박유철 한국유화학회 1998 한국응용과학기술학회지 Vol.15 No.2
The catalytic oxidations of several cycloolefins in CH2Cl2 were been investigated using Mn(III)-, Fe(III)-porphyrin complexes as a catalyst and sodium hypochlorite as a terminal oxidant. Porphyrins were (p-CH3O)TTP, (p-CH3)TTP, TPP, (p-F)TPP, (p-Cl)TPP and (F20)TPP (TPP = tetraphenylporphyrin), and olefins were cyclopentene, cyclohexene and cycloheptene. The substrate conversion yield was discussed according to the substituent effects of metalloporphyrin. The conversion yield of substrate by changing the substituent of TPP increased in the order of p-CH3O 〈 p-CH3 〈 H 〈 p-F 〈 p-Cl, which was consistent with the sequence of 4Σ values of TPP. The conversion of cycloalkene followed the order of C5 < C6 < C7.
Al(lll)-Porphyrin착물에 의한 올레핀 산화반응 메카니즘 연구
나훈길,한만소,Na, Hun-Gil,Han, Man-So 대한화학회 2006 대한화학회지 Vol.50 No.1
착물을 촉매제로 하여 용매인 CH2Cl2와 산화제 NaClO를 사용하여 올레핀 산화반응의 메카니즘 연구를 하였다. 이들 반응에서 포르피린의 치환기는 TPP(5,10,15,20-Tetraphenylporphyrin)와 (p-X)TPP(X=CH3O, CH3, F, Cl)를, 올레핀은 styrene과 (p-X)styrene (X=CH3O, CH3, Cl, Br)을 사용하였다. 일반 효소반응에서 잘 알려진 Michaelis-Menten식에 따라 Km과 Vmax 값을 구하였다. Michaelis-Menten 식의 속도 파라미터를 포르피린 치환기에 따라 측정하고, 이들 파라미터와 치환기상수 간의 상관성을 조사함으로써 올레핀 산화반응의 중간체 M-oxo-olefin의 형성 과정과 분해 과정이 촉매활성이나 속도 결정 단계의 변화에 미치는 영향을 분석 하고자 하였다. studies of olefin oxidation using Al(III)-porphyrin complexes as catalyst are investigated in CH2Cl2, in which NaClO is used as terminal oxidant. Porphyrins are TPP(5,10,15,20-Tetraphenylporphyrin) and (p-X)TPP(X=CH3O, CH3, F, Cl). Olefins are styrene and (p-X)styrene (X=CH3O, CH3, Cl, Br). The values of Km and Vmax are calculated from the Michaelis-Menten equation. According to the substituents of substrate and catalyst, kinetic parameters will be measured. Investigating the correlation between the Michaelis-Menten rate parameters and the substituent constants, we were able to analyze the influence on the changes of catalytic activity or the rate determining step during the process of the formation and the dissociation of the M-oxo-olefin.
올레핀 산화 반응에서 Ga(Ⅲ)-porphyrin의 촉매적 활성에 미치는 cocatalyst 효과
나훈길,방가영,조은영 대진대학교 2000 大眞論叢 Vol.8 No.-
The catalytic oxidations of styrene in CH₂Cl₂ have been investigated using Ga(Ⅲ)porphyrin as catalyst and sodium hypochlorite as terminal oxidant. Porphyrin was TPP, (p- CH₃O)TPP, (0- CH₃O)TPP (TPP= tetraphenylporphyrin). Steric and electronic influence of various substituted pyridine(cocatalyst) support the hypothesis of the coordination of pyridine in the Ga(Ⅲ)TPPC1 catalyzed with NaC1O.
Metalloporphyrin을 촉매제로 한 올레핀 화합물의 산화반응
나훈길,한만소 대진대학교 1996 大眞論叢 Vol.4 No.-
The catalytic oxidations of several olefins in CH₂Cl₂ have been investigated using Mn(Ⅲ)-porphyrin complexes as catalyst and sodium hypochlorite as terminal oxidant. Porphyrins were (p-CH₃O)TPP, (p-CH₃) TPP, TPP, (p-F)TPP, (p-Cl)TPP and (F_(20))TPP (TPP=tetraphenylporphyrin), and olefins were cyclopentence, cyclohexene, cycloheptene, cyclopentance, cyclohexane, cycloheptane. The substrate conversion yield was discussed according to the substituent effects of metalloporphyrin. The conversion yield of substrate by changing the substituent of TPP increased in the order of p-CH₃O < p-CH₃ < H < p-F < p-Cl, which was consistent with the sequence of 4σ values of TPP. The conversion of cycloalkene and cycloalkane followed the order of C_(5)<C_(6)<C_(7)
Al(Ⅲ)-porphyrin착물에 의한 고리성 올레핀의 산화반응
나훈길 대진대학교 2001 大眞論叢 Vol.9 No.-
In this study, the catalytic activities of several metalloporphyrins are reported for the oxidation of cycloalkenes in the presence of sodium hypochlorite as terminal oxidant. In addition to that, the electronic and steric effects of substrates and porphyrins on the catalytic activity of metalloporphyrin containing the non-redox metal ion such as Al(Ⅲ) was discussed. The porphyrins were tetraphenylporphyrin(TPP) and substituted porphyrins, (p-X)TPP (X = CH₃O, CH₃, H, F, Cl) and tetrakis(pentafluorophenyl)porphyrin (F_(20)TPP).
Mn(Ⅲ)-, In(Ⅲ)-porphyrin의 촉매적 활성에 미치는 cocatalyst 효과
나훈길 대진대학교 1998 大眞論叢 Vol.6 No.-
The catalytic oxidations of styrene, cyclohexene in CH₂Cl₂ have been investigated using Mn(Ⅲ)-, In(Ⅲ)-porphyrin as catalyst and sodium hypochlorite as terminal oxidant. Porphyrin was (F_(20)) TPP (TPP = tetraphenylporphyrin). Steric and electronic influence of various substituted pyridine(cocatalyst) support the hypothesis of the coordination of pyridine in the Mn(Ⅲ)-, In(Ⅲ)(F_(20)) TPPCl catalyzed with NaOCl.
In(Ⅲ)-, Tl(Ⅲ)-porphyrin을 촉매제로 한 시클로알칸의 히드록시화 반응
나훈길(Hun Gil Na) 한국유화학회 2000 한국응용과학기술학회지 Vol.17 No.1
The catalytic hydroxylation of several cycloalkanes in dichloromethane have been investigated using In(Ⅲ)-, Tl(Ⅲ)-porphyrin complexes as a catalyst and NaClO, NaClO₂, H₂O₂ as a terminal oxidant. Porphyrins were TPP and (F₂₀)TPP (TPP = tetraphenylporphyrin) and substrates were cyclopentane, cyclohexane, cycloheptane and cyclooctane. The substrate conversion yield was discussed according to the substituent effect and hinderance effect of metalloporphyrin and the radius effect of non-redox metal ion. The conversion yield of cycloalkane followed the order of C₅ < C₆ < C₇ = C₈. In this experimental condition NaClO₂ was rather efficient terminal oxidant than NaClO and H₂O₂.
Ga(III)-, In(III)-, TI(III)-porphyrin 유도체를 촉매제로 한 고리성 올레핀의 산화반응
나훈길(Na HunGil) 한국유화학회 2004 한국응용과학기술학회지 Vol.21 No.1
The catalytic oxidation reaction of several cycloolefins in CH2Cl2 have been investigated using non-redox metalloporphyrin(M = Ga(III), In(III) and TI(III) complexes as a catalyst and sodium hypochlorite as a terminal oxidant. Porphyrins were (p-CH3O)TPP, (p-CH_3)TPP, TPP, (p-F)TPP, (p-Cl)TPP and (F{20})TPP (TPP=5,10,15,20-tetraphenyl-21H,23H-porphyrin) and olefins were cyclopentene, cyclohexene, cycloheptene and cyclooctene, The substrate conversion yield(%) was investigated according to the radius effect of non-redox metal ion, substituent effect and hindrance effect of metalloporphyrin. The conversion yield of cycloolefin was in the following order : C5 < C6 < C7 =C8.
Mn(III)-porphyrin에 의한 Styrene 유도체의 산화반응 메카니즘 연구
나훈길(Na HunGil) 한국유화학회 2002 한국응용과학기술학회지 Vol.19 No.3
The catalytic activities of several metalloporphyrin, wherein the porphyrins are TPP(5,lO,l5,20-Tetraphenyl-21H,23H-porphyrin) and (p-X)TPP (X=CH3O, CH3, F, Cl), are reported for the oxidation of styrene and it s derivatives. The electronic effects of substrates and porphyrins on the catalytic activity of metalloporphyrin containing the transition metal ion such as Mn(III) was discussed. Investigating the correlation between the Michaelis-Menten s rate parameters and the substituent constants, we are going to analyze the influences on the changes of catalytic activity or rate determining step during the processes of the formation and the dissociation of the M-oxo-olefin.