• Title, Summary, Keyword: 디페닐아민

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Organotitanium Chemistry (Ⅲ). The Reactions of Titanium Tetrachloride with Piperidine and Diphenylamine (유기티탄 화학 (제3보). 사염화티탄과 피페리딘 및 디페닐아민과의 반응)

  • Young Sun Uh;Hoosung Lee;Youn soo Sohn
    • Journal of the Korean Chemical Society
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    • v.18 no.6
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    • pp.408-414
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    • 1974
  • The direct reactions of titanium tetrachloride with piperidine and diphenylamine in dichloromethane have been studied by examining the isolated reaction products. In the reaction with piperidine, titanium tetrachloride undergoes both addition and substitution reactions as in the following: $TiCl_4+C_5H_{10}NH{\to}TiCl_4{\cdot}C_5H_{10}NH$$TiCl_4+C_5H_{10}{\to}TiCl_3{\cdot}NC_5H_{10}+HCl$ The addition reaction is relatively fast and completed in minutes whereas the substitution reaction is very slow. The both reaction products coprecipitated with piperidine hydrochloride formed during the substitution reaction were isolated and characterized. The reaction with diphenylamine resembles to the above reaction but the addition compound could be obtained in pure crystal form.

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The Crystal and Molecular Structure of the 4-Chloro-4'-Methoxy-2-NitroDi phenylamino $(C_{13}H_{11}N_2O_3CL)$ (4-크로로-4'-메톡시-2-니트로디페닐아민의 X-선 결정 및 분자구조 결정)

  • Nam, Gung-Hae;Yu, Jae-Hyeok;Lee, Hyeon-Mi
    • Korean Journal of Crystallography
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    • v.2 no.2
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    • pp.28-31
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    • 1991
  • 4-크로로-4'-메톡시-2-니트로디페닐아민, (C12H11N2O3CL, FW=278.70)의 단것세포 상수는 a=8,169(3), b=8.883(1), c=9.150(1) h, α =82. 98(1), β=104.80(2), y=101.43(2)", V=627.3 A3, F(000)=288.0, Dc=1.48g/cm3, u=3.06cm-1, 7=295" K, 공간군 Pi, 번호 2, 삼사 정계 이며, Z=2이다. λ (Mo-Ka)=0.7107A을 사용 하여 수집한 독립적인 회절 반점 1541개로 구조분 석한 최종 신뢰도 값은 각각 R=0.032, Rw=0.033 이며, S=0.46이다. 본 화합물은 암모니아의 두개 의 수소 대신에 4-크로로-페닐기와 4-메톡시-페닐기로 치환된 물질로써, 질소와 두 페닐기 사이의 각과 결합거리 들은 각각 125.42", 1.362 및 1.428 A 인바 수소와 함께 SP2_혼성결합을 하고있다. 질소를 포함한 두 면간 각은 63.29"이다. 분자간 어 떠 한 수소결합을 하고 지지 않다.

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The Recycling of Wastewater of Disperse Dyes (분산염료 염색폐액의 재활용)

  • 한지애;정재윤
    • Proceedings of the Korean Fiber Society Conference
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    • pp.151-154
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    • 2002
  • 분산염료는 1923년경 공업화된 이후 분산상태로 아세테이트 섬유 및 폴리에스테르 섬유 등의 소수성 섬유의 염색에 이용되고 있다. 이후 폴리에스터 섬유의 급격한 신장과 소비자 수요의 증가에 따라 분산염료는 총염료생산량의 50% 이상을 차지하고 있다[1]. 분산염료는 구조적으로 크게 안트라퀴논, 메틴, 니트로디페닐아민, 아조계로 구분된다. 그리고 구조에 친수성기를 가지고 있지 않으므로 물을 사용하여 행해지는 염색과정에서 균일하게 분산되지 않는 특성을 가지고 있다. (중략)

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Safety Assesment of Pesticides Treated on Garlic to Control Black Rot during the Storage (마늘 저장 중 부패병 방제를 위하여 처리한 농약의 경시적 농약 잔류량 평가)

  • You, Oh-Jong;Jin, Yong-Duk;Hwang, Se-Gu;Lee, Yong-Hoon;Ihm, Yang-Bin;Kim, Jin-Bae;Kwon, Oh-Kyung;Kyung, Kee-Sung;Kim, Jang-Eok
    • The Korean Journal of Pesticide Science
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    • v.13 no.3
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    • pp.148-158
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    • 2009
  • We tested and selected some agrochemicals reducing the occurrence of major pests and diseases during garlic storage. Tebuconazole, diphenylamine and prochloraz as fungicides and dimethate as a insecticide were sprayed or drenched before harvest. And the harvested garlic was dipped in each of the agrochemicals. The residues of pesticides in garlic bulbs treated were analyzed every month from harvesting time for 6 months. In case of Danyang garlic, which was treated with pesticides before and after harvesting, the residues of diphenylamine, tebuconazole, prochloraz, and dimethoate ranged from 0.008 to 0.28, from 0.03 to 0.32, from 0.02 to 0.12, and from 0.02 to 0.25 mg/kg, respectively. In case of Uiseong garlic, the residues of diphenylamine, tebuconazole, prochloraz and dimethoate ranged from 0.008 to 0.09, from 0.08 to 0.45, from 0.02 to 0.57, and from 0.04 to 0.38 mg/kg, respectively. And, in case of Namdo garlic, the residues of diphenylamine, tebuconazole, prochloraz, and dimethoate ranged from 0.008 to 0.52, from 0.07 to 1.67, from 0.02 to 0.17, and from 0.03 to 0.73 mg/kg, respectively. Some of the garlic samples treated with tebuconazole exceeded its maximum residue limits (MRLs) of 0.1 mg/kg set by Korea Food Drug Administration (KFDA), but dimethoate was detected below its MRL of 1.0 mg/kg. In case of diphenylamine and prochloraz, their MRLs for garlic were not set. Adapting their MRLs, 5.0 mg/kg of diphenylamine for apple and pear and 0.5 mg/kg of prochloraz for strawberry and grape, residue levels of diphenylamine and procloraz were below than their MRLs, with the exception of samples two times treated with procloraz in Namdo garlic. These results indicate that dimethoate can be used as an agrochemical to control the postharvest disease in garlic in only MRL aspect.