• 제목/요약/키워드: Anisole

검색결과 39건 처리시간 0.025초

아니솔의 연소특성치의 측정에 의한 MSDS의 적정성 (Appropriateness of MSDS by Means of the Measurement of Combustible Properties of Anisole)

  • 하동명
    • 한국화재소방학회논문지
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    • 제29권2호
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    • pp.20-24
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    • 2015
  • 아니솔의 안전한 취급을 위해, 폭발한계는 문헌을 통해 고찰하였고, 인화점과 발화지연시간에 의한 발화온도를 측정하였다. 그 결과, 밀폐식 장치에 의한 아니솔의 하부인화점은 $39^{\circ}C$$42^{\circ}C$로 측정되었으며, 개방식에서는 $50^{\circ}C$$54^{\circ}C$로 측정되었다. ASTM E659 장치를 사용하여 자연발화온도와 발화지연시간을 측정하였고, 아니솔의 최소자연발화온도는 $390^{\circ}C$로 측정되었다. 측정된 하부인화점에 의한 폭발하한계는 1.07 Vol%로 계산되었다.

Synthesis of 4-Hydroxycoumarion Derivatives-1: An Efficient Synthesis of Flocoumafen

  • Park, Oee-Sook;Jang, Bong-Suek
    • Archives of Pharmacal Research
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    • 제18권4호
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    • pp.277-281
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    • 1995
  • An anticoagulant, 4-hydroxy-3-[1, 2, 3, 4-tetrahydro-3-[4-(4-trifluoromethylbenzyloxy)phenyll-1 -naphthyl]coumarin (Flocoumafen) was synthesized in 8 steps starting from phenylacetyl shloride and anisole. The key step in the synthesis involves the reaction of 3-(4-methoxyphenyl)-1-teralol with 4-hydroxycoumarin to give 4-hydroxy-3 [1, 2, 3, 4-tetrahydro-3-[4-emthoxyphenyl]-1-naphthyl]coumarin.

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Triisopropylsilyl pentacene organic thin-film transistors by ink-jet printing method

  • Park, Young-Hwan;Kang, Jung-Won;Kim, Yong-Hoon;Han, Jeong-In
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
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    • pp.1135-1138
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    • 2006
  • By ink-jet printing method, organic thin-film transistors (OTFTs) having soluble 6,13-bis (triisopropylsilylethynyl) pentacene (TIPS pentacene) as an active material were fabricated. The TIPS pentacene solution was made with chlorobenzene and anisole. The solutions were printed on poly (4-vinylphenol) (PVP) dielectric layers and source/drain electrodes by piezo-type heads for bottom contact OTFTs. The dielectric layers had untreated or HMDS-treated conditions. The chlorobenzene device showed the highest field effect mobility of $0.016\;cm^2/Vs$ and the anisole HMDS-treated device shows the highest $I_{on}/I_{off}$ ratio of $10^5$.

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Catalysis by the Fe(Ⅲ) Complex of N-Dodecyl-3,4-dihydroxybenzamide in the Hydroxylation of Anisole with Hydrogen peroxide$^*$

  • Suh, Jung-Hun;Nahm, Kee-Pyung
    • Bulletin of the Korean Chemical Society
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    • 제6권3호
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    • pp.138-140
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    • 1985
  • Hydroxylation of anisole with $H_2O_2$ was investigated by employing Fe(III) ion and N-dodecyl-3,4-dihydroxybenzamide (DDHB) as a catalyst. The study was aimed at obtaining an insoluble catalyst with a long catalytic life, in view of the inactivation of the catechol portion of the catalyst during the reaction. The rate of decomposition of $H_2O_2$ under various conditions indicated that the reaction proceeds through the catalytic participation of $Fe(III){\cdot}DDHB$. Yield of the hydroxylation products under various conditions revealed that $Fe(III){\cdot}DDHB$ is not inactivated during the reaction.

Nucleophilic Addition of Phosphate to Coordinated (Arene)manganes Tricarbonyl Cations

  • Chung, Young-Keun;Bae, Hye-Kyung;Jung, Il-Nam
    • Bulletin of the Korean Chemical Society
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    • 제9권6호
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    • pp.349-352
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    • 1988
  • [(Benzene)Mn$(CO)_3$]$^+$ reacts with NaP(O) (OR)$_2$ (R = Me, Et, Ph) to give the phosphonate compound 1. Compound 1 reacts with R'Li (R = Me, Ph, $^nBu, ^tBu$) to yield the isomerized compound 2 and the alkylated compound 3. [(Toluene)Mn$(CO)_3$]$^+$ reacts with NaP(O)$(OMe)_2$ to give the phosphonate complexes 1-A and 1-B. Treatment of 1-A with $^tBuLi$ in THF affords complexes 3-A and 3-B with the later major. With 1-B only the complex 3-C is formed. [(Anisole)Mn$(CO)_3$]$^+$ reacts with NaP(O)$(OMe)_2$ to give the phosphate complex 1-C, which on treatment with $^tBuLi$ and then $H_2O$ yields compound 3-D. After demetallation of compound 3-D, meta-tertbutyl-anisole is obtained in a reasonable yield.

Effect of Antioxidant Preservative on Cold Protection Ability of Low Grade Riverine Buffalo (Bubalus bubalis) Bull Spermatozoa

  • Pankaj, Prabhat Kumar;Raina, V.S.;Roy, B.;Mohanty, T.K.;Mishra, A.
    • Asian-Australasian Journal of Animal Sciences
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    • 제22권5호
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    • pp.626-635
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    • 2009
  • An experiment was conducted to investigate the effect of Butylated Hydroxy Anisole (BHA), Butylated Hydroxy Toluene (BHT), Pentoxifylline (PTX), Theophylline (TPY) and Theobromine (TBR) on cold protection ability of Murrah buffalo semen at room ($22-25^{\circ}C$) and refrigerated temperature ($4-7^{\circ}C$). Each semen sample was divided into six parts of equal volume and sperm concentration; the first was kept as a control and the remaining five were treated with BHA, BHT, PTX, TPY or TBR. Sperm motility, abnormal spermatozoa, live-dead count, hypo-osmotic swelling and acrosomal integrity were studied at room and refrigerated temperature for various incubation periods viz.; 0, 4, 8, 12 and 24 h at room and 0, 12, 24, 36, 48, 60 and 72 h at refrigerated temperature. Significant improvement in sperm motility, live-dead count, hypo-osmotic swelling and acrosomal integrity were observed in BHT, PTX and TPY fortified extender at room and refrigerated temperature for various incubation periods. From the present study it could be concluded that cold protection ability of buffalo semen can be improved through the addition of BHT followed by PTX and TPY.

할로겐 치환아니솔유도체의 핵자기공명스펙트라에 관한 연구 (A Study on the Nuclear Magnetic Resonance Spectra of Halogen Substituted Anisole Derivatives)

  • 김유선
    • 대한화학회지
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    • 제21권2호
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    • pp.94-101
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    • 1977
  • 2,4-치환 또는 2,4,6-치환아니솔유도체들의 핵자기공명스펙트라를 조사하여 벤젠고리 수소의 화학적 이동 값을 검토하였다. 그 결과 2-치환기에 인접된 고리 수소의 화학적이동 값이 그 치환기의 안가려막기효과(Deshielding effect)에 의하여서 영향을 받고 있으며 그 정도가 치환기이 Van der Waals 반경에 비례하여 증가함을 관찰하였다. 이들 관찰결과를 종합 고찰하여서 2-치환기가 인접된 고리 수소의 반응성에 입체적인 방해효과를 미치고 있는 한가지 근거로서 해석하고자 하였다. 핵자기 공명스펙트라에서 얻은 자료를 제시 하였으며, 그 결과를 이 관점에서 논의하였다.

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Polymerization of Anisole Derivatives Containing Allyl or Chloromethyl Group Through Aromatic Electrophilic Substitution Reaction

  • 장지영;박필정;한만정
    • Bulletin of the Korean Chemical Society
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    • 제18권12호
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    • pp.1288-1291
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    • 1997
  • 4-Allylanisole was polymerized with AlCl3 as a catalyst. The polymerization was carried out in nitroethane at various temperatures with changing the ratio of the initiator to the monomer concentration. The weight averge molecular weights measured by gel permeation chromatography in chloroform with polystyrene standards were between 1,500 and 4,700. 1H NMR spectroscopy showed that the polymerization proceeded through a stepwise aromatic electrophilic substitution reaction along with a minor chain-reaction, resulting in a branched polymer. 4-Chloromethylanisole was also polymerized with AlCl3 in nitroethane through an aromatic electrophilic substitution reaction to give a high molecular weight polymer (Mw=88,000).