摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词

4-(4-methylphenyl)-1,2,4-triazolidine-3,5-dione | 79491-05-7

中文名称
——
中文别名
——
英文名称
4-(4-methylphenyl)-1,2,4-triazolidine-3,5-dione
英文别名
4-(4-methylphenyl)urazole;4-(p-methylphenyl)urazole;4-p-Tolylurazol;4-p-tolyl-[1,2,4]triazolidine-3,5-dione;4-p-Tolyl-[1,2,4]triazolidin-3,5-dion
4-(4-methylphenyl)-1,2,4-triazolidine-3,5-dione化学式
CAS
79491-05-7
化学式
C9H9N3O2
mdl
——
分子量
191.189
InChiKey
HHMLQRYQRQDWTA-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 熔点:
    243-244 °C
  • 密度:
    1.315±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    1.1
  • 重原子数:
    14
  • 可旋转键数:
    1
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    0.11
  • 拓扑面积:
    61.4
  • 氢给体数:
    2
  • 氢受体数:
    2

安全信息

  • 危险性防范说明:
    P261,P280,P305+P351+P338,P304+P340
  • 危险性描述:
    H302
  • 储存条件:
    2-8°C,干燥

SDS

SDS:b1c5625d14a873a0e7a9a7db162a140b
查看

反应信息

  • 作为反应物:
    参考文献:
    名称:
    乌拉唑的望远镜氧化和环加成获得二氮杂环丁烯
    摘要:
    我们以前访问二氮杂环丁烯支架的方法不允许修改源自 1,2,4-三唑啉-3,5-二酮成分的取代基。我们已经规避了这一挑战,并扩大了对脚手架额外结构多样性的访问。伸缩的乌拉唑氧化和路易斯酸催化的环化提供了 R 3取代的二氮杂环丁烯。次氯酸钙介导的乌拉唑氧化,随后 MgCl 2催化所得三唑啉二酮与硫代炔烃的环化促进了二氮杂环丁烯的形成,该二氮杂环丁烯在源自三唑啉二酮组分的R 3位置带有取代。
    DOI:
    10.1021/acs.joc.2c00280
  • 作为产物:
    描述:
    参考文献:
    名称:
    从苯胺中新型高效合成 4-取代 1,2,4-三唑烷-3,5-二酮
    摘要:
    摘要 开发了一种以苯胺为原料制备 1,2,4-三唑烷二酮 (urazole) 的 4-取代苯基衍生物的简单有效的三步合成方法。在该方法中,苯胺衍生物与氯甲酸 4-硝基苯基酯反应生成相应的氨基甲酸酯衍生物。在第二步中,通过与氨基甲酸乙酯反应,由这些氨基甲酸酯制备氨基脲衍生物。相应氨基脲的环化反应以高产率提供了 1,2,4-三唑烷二酮。
    DOI:
    10.1080/00397910701316862
点击查看最新优质反应信息

文献信息

  • A Novel One-Pot Synthesis of 4-Substituted 1,2,4-Triazolidine-3,5-diones
    作者:Shadpour Mallakpour、Zahra Rafiee
    DOI:10.1055/s-2007-977413
    日期:——
    A simple and one-pot pathway for the preparation of 4-substituted phenyl derivatives of triazolidindiones (urazoles), ­starting from aniline derivatives is reported. In these methods aniline derivatives were reacted with ethyl chloroformate, to give the corresponding carbamate derivatives. In the second step ­semicarbazide derivatives were prepared from these carbamates by reaction with ethyl carbazide. The cyclization reactions of the ­corresponding semicarbazides furnished triazolidindiones. All reactions were performed in one vessel without the isolation of reaction intermediates, such as carbamates and semicarbazides, and the final products were isolated in good yields.
    报道了一种简单的单锅路径,用于从苯胺生物制备4-取代苯基的三氮唑二酮(尿唑)衍生物。在这些方法中,苯胺生物氯乙酸乙酯反应,生成相应的羰基酯衍生物。在第二步,通过与乙腙反应,从这些羰基酯中制备出生物。相应的的环化反应生成三氮唑二酮。所有反应均在一个反应器中进行,无需分离反应中间体(如羰基酯和),最终产物的收率良好。
  • Construction of Polyheterocyclic Benzopyran Library with Diverse Core Skeletons through Diversity-Oriented Synthesis Pathway: Part II
    作者:Mingyan Zhu、Byung Joon Lim、Minseob Koh、Seung Bum Park
    DOI:10.1021/co2001907
    日期:2012.2.13
    diversity-oriented synthesis of polyheterocyclic small-molecule library with privileged benzopyran substructure. To ensure the synthetic efficiency, we utilized the solid-phase parallel platform and the fluorous-tag-based solution-phase parallel platform to construct a 284-member polyheterocyclic library with six distinct core skeletons with an average purity of 87% on a scale of 5–10 mg. This library was designed
    正如我们以前的报告(的延续J.梳子。化学。2010,12(548-558),我们完成了具有特权的苯并喃亚结构的多杂环小分子文库的面向多样性的合成。为确保合成效率,我们利用固相平行平台和基于标签的溶液相平行平台,构建了一个由284个成员组成的具有6个不同核心骨架的多杂环文库,其平均纯度为87%。 5-10毫克。该库旨在最大程度地提高三维空间中离散核心骨架的骨架多样性,并使用四种不同的苯并喃基原料和各种结构单元来实现组合多样性。加上我们报道的苯并喃基文库,
  • On the mechanism of the cycloaddition of 1,2,4-triazoline-3,5-diones with bicycloalkenes leading to rearranged urazoles
    作者:Waldemar Adam、Nestor Carballeira
    DOI:10.1021/ja00322a023
    日期:1984.5
    Mise en evidence de l'intervention d'un ion aziridinium dans la formation du cycle urazole transpose au cours de la cycloaddition des triazolinediones avec le benzonorbornadiene, les norbornenes et des bicycloalcenes apparentes
    Mise en evidence de l'intervention d'un ion aziridinium dans la形成 du cycle urazole transpose au cours de la cycloaddition des triazolinediones avec le benzonorbornadiene, les norbornenes et des bicycloalcenes尖
  • Tyrosine Bioconjugation through Aqueous Ene-Like Reactions
    申请人:Barbas, III Carlos F.
    公开号:US20120289682A1
    公开(公告)日:2012-11-15
    A new and versatile class of cyclic diazodicarboxamides that reacts efficiently and selectively with phenols and the phenolic side chain of tyrosine through an Ene-like reaction is reported. This mild aqueous tyrosine ligation reaction works over a broad pH range and expands the repertoire of aqueous chemistries available for small molecule, peptide, and protein modification. The tyrosine ligation reactions are shown to be compatible with the labeling of native enzymes and antibodies in buffered aqueous solution. This reaction provides a novel synthetic approach to bispecific antibodies. This reaction will find broad utility in peptide and protein chemistry and in the chemistry of phenol-containing compounds.
    报道了一种新型多功能环状二氮基二羧酰胺类化合物,通过Ene反应与苯酚酪氨酸的苯基侧链高效选择性反应。这种温和的酪氨酸连接反应适用于广泛的pH范围,并扩展了小分子、肽和蛋白质修饰的化学反应库。该酪氨酸连接反应可与缓冲溶液中的天然酶和抗体标记兼容。该反应提供了一种新的双特异性抗体合成方法。该反应将在肽和蛋白质化学以及含化合物的化学中发挥广泛的实用价值。
  • Novel Strategy for Non-Aqueous Bioconjugation of Substituted Phenyl-1,2,4-triazole-3,5-dione Analogues
    作者:Hugh G. Hiscocks、Alison T. Ung、Giancarlo Pascali
    DOI:10.3390/molecules27196667
    日期:——

    A novel 4-[4-(pentafluoro-λ⁶-sulfanyl)phenyl]-1,2,4-triazole-3,5-dione (5a) was synthesised as a potential [18F]radio-prosthetic group for radiolabelling peptides and proteins via selective bioconjugation with the phenolic side chains of tyrosine residues. Preliminary conjugation tests revealed the rapid hydrolysis of 5a under semi-aqueous conditions; these results led to further investigation into the electronic substituent effects of PTAD derivatives and corresponding hydrolytic stabilities. Five derivatives of 5a with para substituents of varying electron donating and withdrawing effects were synthesised for the investigation. The bioconjugation of these derivatives with model tyrosine was monitored in both aqueous and organic media in the presence of a variety of catalysts. From these investigations, we have found HFIP to be an effective catalyst when used in tandem with DCM as a solvent to give PTAD-tyrosine conjugate products (6a–f) in satisfactory to good yields (54–79%), whereas analogous reactions performed in acetonitrile were unsuccessful. The discovery of this system has allowed for the successful conjugation of electron-deficient PTAD derivatives to tyrosine, which would otherwise be unachievable under aqueous reaction conditions. The inclusion of these electron-deficient, fluorinated PTAD derivatives for use in the PTAD-tyrosine conjugation will hopefully broaden their applicability within fields such as 19F-MRI and PET imaging.

    一种新型的4-[4-(全氟-λ⁶-醇基)苯基]-1,2,4-三唑-3,5-二酮(5a)被合成为一种潜在的[18F]放射性假体基团,通过与酪氨酸残基的侧链选择性生物共轭,用于标记肽和蛋白质。初步的共轭试验揭示了在半条件下5a的快速解,这些结果导致进一步研究PTAD衍生物的电子取代效应和相应的解稳定性。合成了五种带有不同电子给予和提取效应的对位取代基的5a衍生物进行研究。这些衍生物与模型酪氨酸和有机介质中在各种催化剂的存在下进行生物共轭反应的监测。从这些研究中,我们发现在DCM作为溶剂的情况下,HFIP作为有效的催化剂可以使PTAD-酪氨酸共轭产物(6a-f)以令人满意到良好的收率(54-79%)得到形成,而在乙腈中进行的类似反应则失败了。这个体系的发现使得电子不足的PTAD衍生物成功地与酪氨酸共轭,否则在反应条件下将无法实现。这些电子不足的、化的PTAD衍生物的加入,将有望扩大它们在19F-MRI和PET成像等领域的应用。
查看更多