• 제목/요약/키워드: triazine

검색결과 154건 처리시간 0.032초

새로운 Cyanomethyl-1,3,5-triazine 유도체들의 합성 (Synthesis of New Cyanomethyl-1,3,5-triazine Derivatives)

  • 김정환;김은주
    • 대한화학회지
    • /
    • 제40권11호
    • /
    • pp.681-685
    • /
    • 1996
  • 6-Cyanomethyl-1, 3, 5-triazine의 2번과 4번 위치에 amino, n-propylamino, isopropylamino, 및 anilino기가 도입된 새로운 유도체 4들의 합성은 6-chloro-1, 3, 5-triazine 유도체 2'들과 3들을 tert-butyl cyanoacetate로 반응시켜 얻었으며, 6-chloro-1, 3, 5-triazine의 2번과 4번 위치에 amino, n-propylamino, isopropylamino, 및 anilino기가 도입된 유도체 2'들과 3들은 2, 4, 6-trichloro-1, 3, 5-triazine 및 4, 6-dichloro-1, 3, 5-triazine 유도체 2들과 amine 유도체들로부터 합성되었다.

  • PDF

s-Triazine의 Ring Transfromation에 의한 Pyrimidopyrimidine의 합성 (Synthesis of Pyrimidopyrimidine by Ring Transformation of s-Triazine)

  • 정원근;김상기;천문우;김득준
    • 약학회지
    • /
    • 제28권2호
    • /
    • pp.97-100
    • /
    • 1984
  • We have investigated the feasibility of using cyclic ambident nucleophiles in s-triazine ring transformation reaction and found that they can replace the $N_{1}-C_{2-N_{3}$ fragment of s-triazine directly in basic conditions, yielding the corresponding bicyclic products. In this paper, we described the reaction and mechanistic aspects of s-triazine to pyrimidopyrimidine transformation by 6-aminouracil derivatives. This type of ring transformation is supposed to be first attempt that deals with the successful s-triazine to bicyclic heterocycle transformation.

  • PDF

Synthesis of New Pyrazolo[5,1-c]triazine, Triazolo[5,1-c]triazine, Triazino[4,3-b]indazole and Benzimidazo[2,1-c]triazine Derivatives Incorporating Chromen-2-one Moiety

  • Khalil, Mohamed A.;Sayed, Samia M.;Raslan, Mohamed A.
    • 대한화학회지
    • /
    • 제57권5호
    • /
    • pp.612-617
    • /
    • 2013
  • The versatile, hitherto unreported 3-(4-(2-phenyldiazenyl)-2-oxo-2H-chromen-3-yl)-3-oxopropanenitrile 3 was prepared by two convenient routes: either by the reaction of ethyl 4-(2-phenyldiazenyl)-2-oxo-2H-chromen-3-carboxylate 2 with acetonitrile in the presence of sodium hydride or by treatment of 4-(2-phenyldiazenyl)-3-(2-bromoacetyl)-2H-chromen-2- one 5 with potassium cyanide. Reaction of 3 with heterocyclic diazonium salts 6, 7, 14 and 17 furnished the corresponding hydrazones 8, 9, 15 and 18. The latter hydrazones underwent intramolecular cyclization into the corresponding pyrazolo[5,1- c]-1,2,4-triazine 10, 1,2,4-triazolo[5,1-c]-1,2,4-triazine 11, 1,2,4-triazino[4,3-b]indazole 16 and imidazo[2,1-c]-1,2,4-triazine 19 derivatives, respectively upon refluxing in pyridine.

1,2,4-Triazine III : 1,2,4-Triazine 유도체의 Methiodide 염 합성과 이들 염의 고리 축소화반응에 의한 1,2,4-Triazole 유도체 합성 (1,2,4-Triazine III : Synthesis of 1-Methyl-1,2,4-triazinium Iodides and Their Ring Contraction Reaction to 1-Methyl-1,2,4-triazoles)

  • 이재근;유향선
    • 대한화학회지
    • /
    • 제33권4호
    • /
    • pp.419-425
    • /
    • 1989
  • 1,2,4-Triazine 유도체들을 acetone 용매하에서 methyl iodide와 반응시켜 다양한 1-methyl-1,2,4-triazinium iodide 염을 합성하였다. 또한 이들 염을 10% NaOH 수용액 내에서 $K_3Fe(CN)_6$로 산화시킨 결과 고리 축소화반응이 일어나 1-methyl-1,2,4-triazole 유도체를 주로 얻을 수 있었으나 $C_6$에 치환기가 없을 경우는 미량이긴 하지만 1,6-dihydro-6-oxo-1,2,4-triazine 유도체도 동시에 얻을 수 있었다. 고리 축소화반응은 $OH^-$에 의해 먼저 pseudo base를 형성하고 이 Pseudo base가 1-methyl-1,2,4-triazole과 1,6-dihydro-6-oxo-1,2,4-triazine으로 진행됨을 확인할 수 있었고 또한 1,2,4-triazine의 3개의 질소원자 중 $N_1$ 원자에 quaternization됨을 확인할 수 있었다.

  • PDF

합성한 광학플라스틱 재료인 Poly(triazine bissulfide)s 유도체에 대한 연구 (Study on Poly(triazine bissulfide)s Derivatives being the Synthesized Optical Plastic Material)

  • 이용희;이동환;김재종;하태욱;차정원
    • 한국안광학회지
    • /
    • 제9권2호
    • /
    • pp.481-489
    • /
    • 2004
  • Poly(triazine bissulfide)s는 상간이동촉매하에서 bis(4-chloro-3-nitrophenyl)sulfone와 6-dibutylamino-1,3,5-triazine-2,4-dithiol로도 합성하였으며, 또한 m-dibromide xylene와 p-dibromide xylene으로 cetyltrimethyl ammonium bromide와 함께 $70^{\circ}C$에서 24시간 동안 6-dibutylamino-1,3,5-triazine-2,4-dithiol로 반응시켜서도 합성하였다. 캐스트필름을 만들기 위해서 합성한 이들에 대한 용해도, 열적 성질, 평균분자량 등에 대해서 좋은 결과를 얻었다. 이러한 결과는 기능성 광학플라스틱 재료인 고분자물질을 합성하는데 있어서 중요한 것임을 보여주는 것이다. 최대대수정도는 $50{\sim}60^{\circ}C$이상에서 0.57~1.40dl/g의 값을 보였다.

  • PDF

s-Triazine의 Ring Transformation에 의한 5-FU의 합성 (Synthesis of 5-Fluorouracil by Ring Transformation of s-Triazine)

  • 정원근;정진현
    • 약학회지
    • /
    • 제26권1호
    • /
    • pp.25-27
    • /
    • 1982
  • We had reported that s-triazine can readily be converted into the corresponding 5-substituted pyrimide. In order to develop new synthetic method of 5-fluorouracil, we tried to replace eliminating fragment, 1, 3-dimethylurea, by fluoroacetamide, which was expected to undergo nucleophilic attack by proton extraction of both .alpha.-hydrogen and aminohydrogen by lithium diisopropylamide (LDA). We found that 5-fluorouracil could be transformed from s-triazine under strong base condition like LDA as well as other 5-substituted pyrimidines.

  • PDF

광학재료로서 triazine기를 갖는 플라스틱 고분자에 대한 연구 (Study about Plastic Polymer bearing Triazine Group as Optical Material)

  • 이용희;김재종;서명교;이영세
    • 한국산업융합학회 논문집
    • /
    • 제6권3호
    • /
    • pp.171-176
    • /
    • 2003
  • The poly(triazine bissulfide) synthesized from 6-dibutylamino-1,3,5-triazine-2,4-dithiol with bis(4-chloro-3-nitrophenyl) sulfone in the presence of the phase transfer catalyst, the maximum algebra viscosity (0.57 dL/g) is stable at reaction temperature of $60^{\circ}C$ overall. We could not acquire the good result about solubility, thermal property, and molecular weight to make cast film, we made base for the synthesis of functionalization polymer material.

  • PDF