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고무용 azo 계 착색제에 관한 연구 : H - 산의 Coupling 반응에 관한 속도론적 고찰 Kinetics of the Coupling reaction of H - acid
박흥조 한국고무학회 1977 엘라스토머 및 콤포지트 Vol.12 No.1
The kinetics of azo-coupling reaction of N-acetyl-H-acid (1-acetamino-8-hydroxynaphthalene-3, 6-disulfonic acid) with several heterocyclic diazonium compounds such as diazotiged 3-aminopyridine, 3-aminoquinoline, 8-aminoquinoline and aniline was studied. It was found that reactions proceeded at remarkably different rate. Reaction rate was in increasing order; 3-aminopyridine, 3-aminoqninoline, 8-aminoquinoline and aniline. And the activation energies were 9.62, 10.10, 10.39, 10.70 Kcal/mole, respectively. Especially, the rate constant of 3-aminopyridine was 100 times larger than that of benzene diazonium compound even in strong acidity. Hammett plot was also made of the rate constants obtained against the heterocyclic substituent constants reported in the literature. A good linear relationship was obtained and the reaction constant of N-acetyl H-acid was calculated to be 3.14.
Phenanthrol 유도체의 Azo-coupling 반응에 關한 硏究
朴興助 忠州大學校 1981 한국교통대학교 논문집 Vol.14 No.2
The Orientation in the reaction of 1-phenanthrol and 4-phenanthrol with benzene diazonium salt have been investigated in warious organic solvents. It has been found that the ortho ; para ratios in protic solvents were smaller than those in aprotic solvents. The results of solvent effects in this reaction were interpreted to be the influence on the reactivities of the phenanthrol derivertives by solvation difference toward the phenanthrolate ion theory.
콜라겐 산분해물의 환원반응과 아미노 알콜 N-아실화 유도체의 합성에 관한 연구
박흥조 忠州大學校 2004 한국교통대학교 논문집 Vol.39 No.2
In this study we obtained various mixed amino acids by acid cleavation of AT collagen. We synthesized aminoalchol by the reduction of mixed amino acids into LAH and N-acyl derivatives and its ester compounds of aminoalchol are synthesized and used as raw materials for cosmetics. As a characterization the traditional skin contact test was carried out and observed that more than 90% of the test were resonably safe.
Azocoupling 反應에 關한 硏究 : Heterocyclic diazonium 화합물의 N-acetyle-H-acid 와의 Coupling
朴興助 忠州大學校 1977 한국교통대학교 논문집 Vol.10 No.2
검수 수정 The kinetics of azo-coupling reaction of N-acetyl-H-acid (1-acetamino-8-hydroxynaphtal-ene-3,6-disulfonic acid) with several heterocyclic diazonium compounds such as diazotized 3-aminopyridine, 3-aminoquinoline, 8-amino-quinoline and aniline was studied. It was found that reactions proceeded at remarkbly different rate. Reaction rate was in incressing order ; 3-aminopyrine, 3-aminoquinoline, 8-aminoquinoline and aniline. and the activation energy was calculated 9.62, 10.10, 10.39, 10.70 ㎉/mole. Especially, the rate contant of N-acetyl - H - acid was calculated to be 3.14.
축부제의 2-amino-2'-hydroxy-1. 1'-binaphthy1 화합물의 부제합성에 관한 연구
朴興助 忠州大學校 1995 한국교통대학교 논문집 Vol.30 No.2
By cross-couping, optical active 2-amino-2'-hydroxy-1, 1'-binaphthyl(AHBN) was preparde on 2-naphthol and 2-naphthylamine under controlled conditions, using a various optical active amins-CuCl₂complex in 2-propanol. It was found that this reaction can produce both enantiomers in case of active 1-naphthylamin and 1-phenylethmine, absolute configuration was R for. total chemical yield was 86% above, especially optical selectivity of AHBN is excellent more 1-phenyl ethyl amine than 1-naphthylethylmine and others active aliphatic amine.
朴興助 충주대학교 1979 한국교통대학교 논문집 Vol.12 No.1
Study on the coupling reaction of several diajonium salts with 2-methyl pyrrole 2-methyl -N-methyl pyrrole. In the case of 2-methyl pyrrole, it was found, from the dependence of the apparent first order reaction rate constant(??) on the pH values, hat the undissociated 2-methyl pyrrole reacted with diajonium salts in the pH rang from 4.7 to 8.2. The reactivity of the pyrrole anion was higher by a factor of 8 powers of ten than that of the undissociated pyrrole.
NADH 모델 화합물을 이용한 Cinamaldehyde의 선택적 환원 반응에 관한 연구
朴興助 충주대 산업과학기술연구소 1999 産業科學論文集 Vol.7 No.2
The selective olefin reduction reaction of α, β -unsatuated carbonyl compound under Hantzch ester derivatives or Rhodium complex compound has been studied with various method. In this investig ation , the model compound, 3,5- dicarboethoxy-2, 6-dimethyl-1, 4-dihydro pyridine (HTE), as Hantzsch ester and tris(triphenyl phosphine) palladium(Pd(PPh3)3) as co-catalyst was synthesized. The selective reduction of cinamaldehyde under HTE and acetic acid derivatives was not observed except trifluoroacetic acid(CF3COOH), which may be due to fluoride effect. In case of using Pd(PPh3)3 in order to enhance trifluoroacetic acid effect, the reaction yield is increased two times.
Acryl섬유와 염기성 염료와의 염색반응속도에 관한 연구
朴興助 忠州大學校 1987 한국교통대학교 논문집 Vol.20 No.2
The effect of physical properties which is second order transition temperature and number of anionic groups of DR, ER and CR acryl fibers on the dyeing kinetice was studied. We found that dyeing rate constants on the cationic dye with various acryl fibers depend more on the second order transition temperature than on the number of anionic groups, lower treansition temperature and higher contents of anionic groups increased the dyeing rate. On the other hand, activation energy by Arrhenius law increased from a lower to a higher level in the order ER, DR and ER Acryl fibers.
Pyrroles 화합물의 azo-coupling 반응에 관한 연구
박흥조 忠州大學校 1982 한국교통대학교 논문집 Vol.15 No.2
The kinetices of azo-coupling reaction for pyrrole compound with several substitution benzene diazonium salt have been studied. In the case pyrrole it was found, from the apparent first order rate constant an various PH range, that the undissociated pyrrole reacted with diazonium salts in the PH range from 4.7 to 8.2. The reactivity of the pyrrole anion was higher by a factor of 8 powers of ten than that of the undissociate pyrrole. Especially, the rate constant of pyrrole with substitution benzene diazonium salt was about 10 times larger then that of benzene diazonium salt with β-naphthol as a coupling component.
Acryl 섬유의 염색반응에 미치는 수용성 유기용매 효과에 관한 연구
朴興助 忠州大學校 1987 한국교통대학교 논문집 Vol.21 No.-
To establish the dyeing condition of fiber (DR,CR) with disperse dye in water so-luble organic Solvent such as benzoyl alcohol (BA)was studied. Accordance with results, when the conditions of dye bath is 60℃ above and 0.18 mole/ℓ BA in water, dye concentration on DR and CR wat rapidly increase. On the other hand, the elevation of ? value caused by the addition of BA can be related to plas-ticising effect of used fibers.