4,5-二甲基-2-硝基苯酚 | 18087-10-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 中文名称: 4,5-二甲基-2-硝基苯酚
• 英文名称: 4,5-dimethyl-2-nitrophenol
• 英文别名: 2-nitro-4,5-dimethylphenol；4,5-dimethyl-2-nitro-phenol；5-Nitro-4-hydroxy-o-xylol；5-Nitro-4-oxy-1.2-dimethyl-benzol；6-Nitro-asymm.-o-xylenol
• CAS: 18087-10-0
• 化学式: C₈H₉NO₃
• mdl: MFCD15527214
• 分子量: 167.164
• InChiKey: KGDIYDUZVHFMHQ-UHFFFAOYSA-N

物化性质

• 熔点：
  87 °C
• 沸点：
  281.6±35.0 °C(Predicted)
• 密度：
  1.263±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  12
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  66
• 氢给体数：
  1
• 氢受体数：
  3

安全信息

• 海关编码：
  2908999090

反应信息

• 作为反应物：
  描述：

  4,5-二甲基-2-硝基苯酚 在 palladium on activated charcoal 氢氧化钾 、 氢气 作用下， 以 乙醇 为溶剂， 反应 32.0h， 生成 5,6-dimethyl-3H-benzooxazole-2-thione
  参考文献：
  名称：

  Benzoxazole Derivatives as Novel 5-HT₃ Receptor Partial Agonists in the Gut

  摘要：

  A series of benzoxazoles with a nitrogen-containing heterocyclic substituent at the 2-position was prepared and evaluated for 5-HT3 partial agonist activity on isolated guinea pig ileum. The nature of the substituent at the 5-position of the benzoxazole ring affected the potency for the 5-HT3 receptor, and the 5-chloro derivatives showed increased potency and lowered intrinsic activity. 5-Chloro-7-methyl-2-(4-methyl-1-homopiperazinyl)benzoxazole (6v) exhibited a high binding affinity in the same range as that of the 5-HT3 antagonist granisetron, and its intrinsic activity was 12% of that of 5-HT. Compound 6v inhibited 5-HT-evoked diarrhea but did not prolong the transition time of glass beads in the normal distal colon even at a dose of 100 times the ED50 for diarrhea inhibition in mice. Compounds of this type are expected to be effective for the treatment of irritable bowel syndrome without the side effect of constipation.

  DOI：

  10.1021/jm9801004
• 作为产物：
  描述：

  3,4-二甲基苯酚 在 三甲基氯硅烷 、 copper(ll) sulfate pentahydrate 、 硝酸胍 作用下， 以 乙腈 为溶剂， 以43%的产率得到4,5-二甲基-2-硝基苯酚
  参考文献：
  名称：

  硝酸胍对富电子芳烃的无酸铜催化亲电硝化反应

  摘要：

  报道了一种实用的铜催化富电子芳烃与三甲基氯硅烷和硝酸胍的硝化反应。在无酸、开瓶和操作简单的条件下，在环境温度下以中等至优异的产率 (32–99%) 生成各种硝化产物。

  DOI：

  10.1021/acs.joc.1c03020

文献信息

• [EN] ISOINDOLINE COMPOUNDS FOR USE IN THE TREATMENT OF CANCER<br/>[FR] COMPOSÉS D'ISOINDOLINE UTILISABLES DANS LE CADRE DU TRAITEMENT DU CANCER
  申请人：CELGENE CORP

  公开号：WO2010053732A1

  公开（公告）日：2010-05-14

  Provided herein are isoindoline compounds such as those of formula (I), pharmaceutical compositions comprising one or more of such compounds, and methods of their use for treating, preventing, or managing various diseases. Formula (I)

  本文提供了诸如式(I)所示的异吲哚类化合物，包括含有一种或多种此类化合物的药物组合物，以及它们用于治疗、预防或管理各种疾病的方法。Formula (I)
• Piperazine derivatives and process for the preparation thereof
  申请人：Samjin Pharmaceutical Co., Ltd.

  公开号：US06028195A1

  公开（公告）日：2000-02-22

  The present invention relates to novel compound having strong antimumor activities of the general formula(I) ##STR1## wherein R.sub.1 and R.sub.2 are independently hydrogen, substituted or unsubstituted C.sub.1 -C.sub.8 alkyl, substituted or unsubstituted C.sub.3 -C.sub.6 cycloalkyl, substituted or unsubstituted C.sub.2 -C.sub.8 unsaturated alkyl, ketone, substituted or unsubstituted aryl, substituted or unsubstituted C.sub.1 -C.sub.4 alkoxy, substituted or unsubstituted arylhydroxy, substituted or unsubstituted amino, C.sub.1 -C.sub.4 lower ester, C.sub.1 -C.sub.4 lower thioester, thiol, substituted or unsubstituted carboxyl, epoxy, substituted or unsubstituted C.sub.1 -C.sub.4 lower thioalkoxy; or R.sub.1 and R.sub.2 are fused to form C.sub.3 -C.sub.4 saturated or unsaturated chain; R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 are independently hydrogen, halogen, hydroxy, nitro, C.sub.1 -C.sub.4 lower ester, C.sub.1 -C.sub.4 lower alkyl, C.sub.1 -C.sub.4 lower thioalkyl, substituted or unsubstituted C.sub.3 -C.sub.6 cycloalkyl, C.sub.1 -C.sub.4 lower alkoxy, C.sub.1 -C.sub.4 lower thioalkoxy, substituted or unsubstituted aryl, substituted or unsubstituted lower arylalkoxy, substituted or unsubstituted lower alkylamino, or lower alkyl substituted or unsubstituted carbamate; or among R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7, two adjacent groups are bonded with each other to form 1,2-phenylene or 2,3-naphthylene; X is oxygen, sulfur, or substituted or unsubstituted imino; Y is bonded at the 3-position or 4-position of the aromatic ring part wherein Y is oxygen or --NR.sub.8 -- (wherein, R.sub.8 is the same with the above-mentioned R.sub.3.); Z is hydroxy, C.sub.1 -C.sub.4 lower alkoxy, C.sub.1 -C.sub.4 lower thioalkoxy, substituted or unsubstituted aryloxy, C.sub.1 -C.sub.4 lower alkylamino, substituted or unsubstituted cycloamino containing 1-5 nitrogen atoms; A is nitrogen or --CH.dbd.; its pharmaceutically acceptable acid addition salts and process for the preparation thereof.

  本发明涉及一种具有强抗肿瘤活性的新化合物，其通式为(I)： 其中R.sub.1和R.sub.2分别独立地为氢、取代或未取代的C.sub.1-C.sub.8烷基、取代或未取代的C.sub.3-C.sub.6环烷基、取代或未取代的C.sub.2-C.sub.8不饱和烷基、酮、取代或未取代的芳基、取代或未取代的C.sub.1-C.sub.4烷氧基、取代或未取代的芳基羟基、取代或未取代的氨基、C.sub.1-C.sub.4较低酯基、C.sub.1-C.sub.4较低硫酯基、硫醇、取代或未取代的羧基、环氧基、取代或未取代的C.sub.1-C.sub.4较低硫代烷氧基；或者R.sub.1和R.sub.2融合形成C.sub.3-C.sub.4饱和或不饱和链；R.sub.3、R.sub.4、R.sub.5、R.sub.6和R.sub.7独立地为氢、卤素、羟基、硝基、C.sub.1-C.sub.4较低酯基、C.sub.1-C.sub.4较低烷基、C.sub.1-C.sub.4较低硫代烷基、取代或未取代的C.sub.3-C.sub.6环烷基、C.sub.1-C.sub.4较低烷氧基、C.sub.1-C.sub.4较低硫代烷氧基、取代或未取代的芳基、取代或未取代的较低芳基氧基、取代或未取代的较低烷基氨基，或较低烷基取代或未取代的碳酸酯基；或在R.sub.3、R.sub.4、R.sub.5、R.sub.6和R.sub.7中，两个相邻的基团彼此连接形成1,2-苯基或2,3-萘基；X为氧、硫或取代或未取代的亚胺基；Y连接在芳香环部分的3-位或4-位，其中Y为氧或--NR.sub.8--（其中，R.sub.8与上述的R.sub.3相同）；Z为羟基、C.sub.1-C.sub.4较低烷氧基、C.sub.1-C.sub.4较低硫代烷氧基、取代或未取代的芳氧基、C.sub.1-C.sub.4较低烷基氨基、含有1-5个氮原子的取代或未取代的环氨基；A为氮或--CH.dbd.；其药学上可接受的酸盐和其制备方法。
• 3-hydroxy anthanilic acid derivatives
  申请人：The University of Maryland

  公开号：US05661183A1

  公开（公告）日：1997-08-26

  The present invention relates to novel derivatives of 3-hydroxyanthranilic acid, 3-HANA of general formula (I), wherein R.sup.1 and R.sup.2 are the same or different and selected from H and alkyl; X is selected from alkylthio, arylthio, aryloxy, halogen and cyano; R.sup.3, R.sup.4 are the same or different and selected from halogen, methyl, fluoroalkyl, cyano and Z-R.sup.5 wherein Z is selected from CH.sub.n, NH.sub.m, O, S, SO.sub.2 and CO wherein n=1 or 2; m=0 or 1 and R.sup.5 is selected from alkyl, aryl and fluoroalkyl; or R.sup.3 and R.sup.4 together form a saturated or unsaturated ring system Y-V-Z wherein Y and Z, independently of each other, are as defined for Z above and V is selected from C.sub.1 -C.sub.3 alkylene or alkenylene, --N.dbd., --N.dbd.N-- and (a), wherein R.sub.7 .dbd.H or alkyl; or a pharmaceutically acceptable salt thereof, methods and intermediates for their preparation, novel pharmaceutical compositions and the use thereof for inhibiting the enzyme 3-hydroxy-anthranilate oxygenase, 3-HAO, responsible for the production of the endogenous neurotoxin quinolinic acid, QUIN.

  本发明涉及一种新颖的3-羟基蒽醌酸衍生物，通式（I）的3-HANA，其中R.sup.1和R.sup.2相同或不同，并且选择自H和烷基；X选择自烷硫基，芳硫基，芳氧基，卤素和氰基；R.sup.3，R.sup.4相同或不同，并选择自卤素，甲基，氟烷基，氰基和Z-R.sup.5，其中Z选择自CH.sub.n，NH.sub.m，O，S，SO.sub.2和CO，其中n=1或2；m=0或1，R.sup.5选择自烷基，芳基和氟烷基；或R.sup.3和R.sup.4一起形成饱和或不饱和环系Y-V-Z，其中Y和Z独立于彼此，并如上所定义，V选择自C.sub.1-C.sub.3 烷基或烯基，--N.dbd.，--N.dbd.N--和（a），其中R.sub.7.dbd.H或烷基；或其药学上可接受的盐，其制备方法和中间体，新颖的药物组合物及其用于抑制酶3-羟基蒽醌酸氧化酶，3-HAO，负责产生内源性神经毒素喹啉酸QUIN。
• [EN] AMIDINE COMPOUNDS AND USE THEREOF FOR PLANT DISEASE CONTROL<br/>[FR] COMPOSÉS AMIDINE ET LEUR UTILISATION POUR LUTTER CONTRE DES MALADIES DE PLANTES
  申请人：SUMITOMO CHEMICAL CO

  公开号：WO2012090969A1

  公开（公告）日：2012-07-05

  An amidine compound represented by formula (1): wherein R1 represent a C1-C11 fluoroalkyl group, a C3-C11 fluoroalkenyl group or a C3-C11 fluoroalkynyl group; R2 represent a C1-C3 alkyl group; R3 represent a C1-C3 alkyl group; R4 represent a C3-C6 cycloalkyl group or a C1-C6 alkyl group optionally having one or more halogens and R5 represent a C3-C6 cycloalkyl group or a C1-C6 alkyl group optionally having one or more halogens, said compound having excellent plant disease controlling effect.

  由以下公式（1）表示的一种胍化合物：其中R1代表C1-C11氟烷基，C3-C11氟烯基或C3-C11氟炔基；R2代表C1-C3烷基；R3代表C1-C3烷基；R4代表C3-C6环烷基或C1-C6烷基，可选地具有一个或多个卤素，R5代表C3-C6环烷基或C1-C6烷基，可选地具有一个或多个卤素，该化合物具有优良的植物病害控制效果。
• Room-Temperature, Water-Promoted, Radical-Coupling Reactions of Phenols with tert-Butyl Nitrite
  作者：Wen-Ting Wei、Hongze Liang、Wen-Ming Zhu、Weida Liang、Yi Wu、Hui-Yan Huang、Yi-Ling Huang、Junfei Luo

  DOI：10.1055/s-0036-1589038

  日期：2017.10

  A radical–radical cross-coupling reaction of phenols with tert-butyl nitrite has been developed with the use of water as an additive. This method allows the construction of C–N bonds under an air atmosphere at room temperature, providing the ortho-nitrated phenol derivative in moderate to good yields.

  使用水作为添加剂开发了苯酚与亚硝酸叔丁酯的自由基交叉偶联反应。该方法允许在室温下在空气气氛下构建 C-N 键，以中等至良好的产率提供邻硝基苯酚衍生物。