• Bulletin of the Korean Chemical Society
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• 제23권7호
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• pp.1029-1030
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• 2002

• 한국환경보건학회지
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• 제7권2호
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• pp.113-117
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• 1981

Twelve benzothiazolyl and 6-substituted benzothiazoly phenyl and chlorophenyl ureas have been newly synthesized by reacting 2-amino benzothiazole and 2-amino-6-substituted benzothazole with three or four phenyl and chlorophenyl isocyanate, respectively. The structures of these compounds were determined by measurement of the molecular weights and elementary analysis as well as IR spectrophotometry. The compounds generally exhibited antibacterial activity against Staphylococcus aureus and Escherichia coli in the concentration of $50\mu g/ml$. The compounds containing chloro group exhibited stronger antibacterial activity than those containing methyl group against Eschichia coli. The difference in the antibacterial activity according to the substituted group (phenyl, o-, m-, and p-chlorophenyl) was also noted. The compounds containing o-chlorophenyl group, on the whole, exhibited more potent growth-inhibitory activity againsts staphylococcus aureus.

• 대한약학회:학술대회논문집
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• 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
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• pp.179.2-179.2
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• 2002

• Bulletin of the Korean Chemical Society
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• 제31권5호
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• pp.1135-1142
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• 2010

A series of N(2)-benzothiazolyl substituted tetrahydroindazoles has been synthesized via cyclic ${\beta}$ keto esters. Optimum reaction condition was found as acidic toluene and effect of higher acidity towards substituted hydrazines in situ was described. Synthesized compounds have been achieved as single isomer and characterized by using 1D and 2D NMR spectral reports. Antimicrobial screening was carried out for the synthesized compounds along with a series of N(2)-pyridyl tetrahydroindazoles.1 The results of the in vitro antimicrobial screening studies revealed that compounds 13, 16 against Staphylococcus aureus, 11 against Escherichia coli, 10-12, 16 against Pseudomonas aeruginosa and 12 against Klebsiella pneumoniae recorded almost two-fold better activity compared to the standard drug used.

• 약학회지
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• 제15권3_4호
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• pp.83-86
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• 1971

Nine novel compounds, namely, 2-(p-aminobenzenesulfonamideo)-6-sulfamylbenzothiozle, 2-benzamido-6-sulfamylbenzothiazole, 2-(p-toluenesulfonamide)-6-sulfamylbenzothiazole, 2-(3,5-dinitrobenzamido)-6-sulfamylbenzothiazole, 2-benzamido-6-nitrobenzothiazole, 2-(p-toluene-sulfonamido)-6-nitrobenzothiazole, 2-(3,5-dinitrobenzamido)-6-nitrobenzothiazole, 2-(p-toluenesulfonamido)-6-chlorobenzothiazole, 2-(3,5-dinitrobenzamido)-6-chlorobenzothiazole were synthesized and evaluated for their in vitro antimicrobial activity against Staphylococcus aureus wood 46, $\betha$-Streptococcus S86, Escherichia coli and antitubercular activity against Mycobacterium tuberculosis H$_{37}$ /Rv. 2-(p-Toluenesulfonamido)-6-chlorobenzothiazole showed antimicrobial activity at 25 $\mu$g/ml against $\betha$-Streptococcus S/86, 2-(3,5-Dinitrobenzamido)-6-sulfamylbenzothiazole was active at 5 $\mu$g/ml and 2-(3,5-dinitrobenzamido)-6-nitrobenzothiazole was consderably active at 1$\mu$g/ml against Mycobacterium tuberculosis H$_{37}$Rv.

• 약학회지
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• 제17권1호
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• pp.17-20
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• 1973

Six novel compounds of N,N-dimethyl-N'-(6-substituted-2-benzothiazolyl) formamidines nad six novel compounds of N, N-dimethyl-N'-(substituted-phenyl)formamidines were synthesized. They were evaluated fro their bactericidal activities aginst Salmonella typhoso, Escherichia coli, Vibrio cholera, Staphyloccus aureus, Sarcina lutea and for their fungicidal activities against Saccharomyces cereviseae, Candida albicans. It was found that these compounds were considerably more active than phenol, especially against Vibrio cholera, and N, N-dimethy-N'-(4-methyl-phenyl_formamkidine, N, N-dimethyl-N'-(2-methyl-4-bromo-phenyl)formanidine showed most potent bactericidal activities.

• Bulletin of the Korean Chemical Society
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• 제34권2호
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• pp.367-373
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• 2013

The ruthenium(II) ferrocenyl heterocyclic thiosemicarbazone complexes of the type $[RuCl(CO)(EPh_3)]_2L$ (where E = P/As; L = binucleating monobasic tridendate thiosemicarbazone ligand) have been investigated. Strutural features were determined by analytical and spectral techniques. Binding of these complexes with CT-DNA by absorption spectral study indicates that the ruthenium(II) complexes form adducts with DNA and has intrinsic binding constant in the range of $3.3{\times}10^4-1.2{\times}10^5M^{-1}$. The complexes exhibit a remarkable DNA cleavage activity with CT-DNA in the presence of hydrogen oxide and the cleavage activity depends on dosage.

• Korean Chemical Engineering Research
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• 제47권4호
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• pp.403-409
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• 2009

1906년 George Oenslager에 의해 처음으로 아닐린계 유기 가황 촉진제를 발견한 이 후 현재 많은 종류의 유기 가황 촉진제가 알려져 있으며 이들 유기 가황 촉진제를 그 특성에 맞도록 병용하면 더욱 효과적이고 이것을 2종 혹은 3종을 병용하면 또 다른 효과를 나타낸다. 최근 고무 산업의 많은 분야에서 생산성 향상 및 제조환경 개선 요구에 부응하기위하여 사출 기법이 도입되고 있으며 이를 위해서 고속 가류형 고무 컴파운드의 개발이 요구되고 있다. 따라서 적절한 가류 시간 확보를 위하여 다양한 종류의 촉진제에 대한 연구, 컴파운드의 적절한 저장 안정 기간 확보에 대한 연구, pellet 형상 제조 시 자중에 의한 autoadhesion 감소에 대한 연구가 활발히 진행되고 있다. 본 연구에서는 NR/BR compounds에 MBTS(2,2' Dithiobisbenzothiazole), TMTM(Tetramethylthiuram Monosulfide), ZDMC(Zinc dimethyldithiocarbamate), CBS(N-Cyclohexyl benzothiazolyl-2-sulfenamide), DPG(Diphenylguanidine)를 각각 병용하여 가황 고무의 가황 특성 및 기계적 물성을 비교 분석하였다. 촉진제 병용에 따른 NR/BR compounds를 평가한 결과 MBTS 1.5 phr, TMTM 0.5 phr, DPG 0.15 phr을 사용한 경우 가장 우수한 가황 특성($t_{90}$: 235 sec, $T_{max}$: 5.77 Nm)을 나타내었으며 100, 300% 모듈러스 및 인열 강도 값이 각각 2.180, 5.656 MPa, 59.58 kgf/cm으로 가장 우수한 결과를 나타내었다.

• 한국염색가공학회지
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• 제22권2호
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• pp.83-87
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• 2010

Crystal structure of coumarin 6 has been solved by X-ray diffraction. The crystals are triclinic, space group P-1, with a=8.823(2) ${\AA}$, b=8.898(2) ${\AA}$, c=11.025(9) ${\AA}$, ${\alpha}$=86.41(3)$^{\circ}$, ${\beta}$=85.39(3)$^{\circ}$, ${\gamma}$=76.23(3)$^{\circ}$, Mr=350.42, V=837.1(3) ${\AA}^3$, Z=2 and R=0.0516. The molecules are packed parallel to each other by weaker ${\pi}{\cdots}{\pi}$ and C-H${\cdots}{\pi}$ interactions. The detailed geometry of C-H${\cdots}{\pi}$ interactions were discussed. The hydrogen bonds and non-traditional C-H${\cdots}O$ interactions join the no-parallel molecules together. All the molecules packed wall-like with the molecular brick.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2006년도 학술대회 및 기술세미나 논문집 디스플레이 광소자
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• pp.81-82
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• 2006

Doping is a well-known method for improving electroluminescent (EL) efficiency of organic light emitting diodes. In our study, doping with 2 materials simultaneously, we could achieve improved EL efficiency. The emission layer was tris-(8-hydroxyquinoline)aluminum, and the 2 dopants were N,N'-dimethyl-quinacridone (DMQA) and 10-(2-Benzothiazolyl)-2, 3, 6, 7-tetrahydro-1,1,7,7,-tetramethyl 1-1H, 5H, 11H-[1] benzopyrano [6,7,8-ij]quinolizin-11-one (C-545T). The EL intensity of co-doped device was nearly flat, it shows that co-doping technique could be a effective way to improve the EL efficiency. EL efficiency of Single-doped device based on DMQA and C-S45T were ~6.47Cd/A and ~7.45Cd/A, respectively. Co-doped device showed higher EL efficiency of ~8.30Cd/A.