1-氯-1,1-二氟-2,4-戊二酮 | 2375-76-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 1-氯-1,1-二氟-2,4-戊二酮
• 英文名称: 1-chloro-1,1-difluoropentane-2,4-dione
• 英文别名: 1-chloro-1,1-difluoro-2,4-pentadione；monochlorodifluoroacetylacetone；1-chloro-1,1-difluoro-pentane-2,4-dione；1-chloro-1,1-difluoro-2,4-pentanedione
• CAS: 2375-76-0
• 化学式: C₅H₅ClF₂O₂
• mdl: MFCD00041520
• 分子量: 170.543
• InChiKey: ZPBKLXPYUKILDE-UHFFFAOYSA-N

物化性质

• 沸点：
  141°C
• 密度：
  1.336±0.06 g/cm3(Predicted)
• 闪点：
  141°C
• 稳定性/保质期：
  避免让氧化物接触。

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  10
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  34.1
• 氢给体数：
  0
• 氢受体数：
  4

安全信息

• 危险等级：
  3
• 危险品标志：
  F
• 危险类别码：
  R10,R36/37/38
• 危险品运输编号：
  1993
• 海关编码：
  2914700090
• 包装等级：
  III
• 危险类别：
  3
• 安全说明：
  S16,S23,S24/25
• 储存条件：
  将容器密封后，放入一个紧密封装的容器中，并存放在阴凉、干燥的地方。

反应信息

• 作为反应物：
  描述：

  1-氯-1,1-二氟-2,4-戊二酮 在 溶剂黄146 、 肼 作用下， 反应 2.0h， 以73%的产率得到3-(chlorodifluoromethyl)-5-methyl-1H-pyrazole
  参考文献：
  名称：

  A general strategy for the synthesis of difluoromethyl-containing pyrazoles, pyridines and pyrimidines

  摘要：

  Difluoromethyl-containing heteroannulated pyridines, pyrimidines and pyrazoles are prepared by a two step method. The regioselective cyclizations of electron-excessive aminoheterocycles, hydrazines and amidines with CF2Cl-substituted 1,3-dicarbonyl compounds provide the corresponding CF2Cl-substituted heterocycles. Subsequent radical reactions with trimethylstannane or allyltrimethylstannane gave difluoromethyl-containing heteroannulated pyridines, pyrimidines and pyrazoles, respectively. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2011.05.085
• 作为产物：
  描述：

  2-氯-2,2-二氟乙酸甲酯 、 丙酮 在 sodium hydride 作用下， 以 乙醚 为溶剂， 反应 14.17h， 生成 1-氯-1,1-二氟-2,4-戊二酮
  参考文献：
  名称：

  A general strategy for the synthesis of difluoromethyl-containing pyrazoles, pyridines and pyrimidines

  摘要：

  Difluoromethyl-containing heteroannulated pyridines, pyrimidines and pyrazoles are prepared by a two step method. The regioselective cyclizations of electron-excessive aminoheterocycles, hydrazines and amidines with CF2Cl-substituted 1,3-dicarbonyl compounds provide the corresponding CF2Cl-substituted heterocycles. Subsequent radical reactions with trimethylstannane or allyltrimethylstannane gave difluoromethyl-containing heteroannulated pyridines, pyrimidines and pyrazoles, respectively. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2011.05.085

文献信息

• Deazapurine Analogues Bearing a 1<i>H</i>-Pyrazolo[3,4-<i>b</i>]pyridin-3(2<i>H</i>)-one Core: Synthesis and Biological Activity
  作者：Linda Supe、Saira Afzal、Abid Mahmood、Syeda Abida Ejaz、Martin Hein、Viktor O. Iaroshenko、Alexander Villinger、Joanna Lecka、Jean Sévigny、Jamshed Iqbal、Peter Langer

  DOI：10.1002/ejoc.201800163

  日期：2018.6.7

  new methodology for the synthesis of fluorinated and non‐fluorinated 1H‐pyrazolo[3,4‐b]pyridin‐3‐ones was developed. The reactions proceed by cyclization of electron‐rich 3‐amino‐1H‐pyrazol‐5(4H)‐ones with 1,3‐diketones and the products were obtained in good to excellent yields and with excellent regioselectivity. The products, which can be regarded as deazapurine analogues, were tested for the alkaline

  为氟化和非氟化的1的合成的新方法ħ -吡唑并[3,4- b ]吡啶-3-酮被开发。反应是通过将富含电子的3-氨基-1 H-吡唑-5（4 H）-1与1,3-二酮环化而进行的，所获得的产物具有良好的产率和极好的区域选择性。该产品可被视为脱氮嘌呤类似物，已测试了碱性磷酸酶（h- TNAP和h- IAP）和核苷酸焦磷酸酶/磷酸二酯酶（h- NPP1和h‐NPP3）抑制曲线。大多数衍生物对组织非特异性和肠道碱性磷酸酶和核苷酸焦磷酸酶（NPP1和NPP3）酶表现出选择性和有效的抑制作用。通过分子对接分析研究了最有效抑制剂的可能结合方式。
• 4,5-disubstituted pyrimidine derivatives and herbicides
  申请人：Nissan Chemical Industries, Ltd.

  公开号：US05716904A1

  公开（公告）日：1998-02-10

  A novel 4,5-disubstituted pyrimidine derivative of the formula (I): ##STR1## wherein R1 is CF.sub.2 X (X is Cl or Br), R.sub.2 is a C.sub.1 -C.sub.8 alkyl group, a C.sub.3 -C.sub.8 cycloalkyl group, etc., R3 is a halogen atom, SH, NH.sub.2, etc., and R4 is a hydrogen atom, a halogen atom, a C.sub.1 -C.sub.6 alkyl group, etc., is a herbicide having excellent activities.

  一种新颖的4,5-二取代嘧啶衍生物，化学式为（I）：##STR1## 其中R1为CF.sub.2X（X为Cl或Br），R2为C.sub.1-C.sub.8烷基，C.sub.3-C.sub.8环烷基等，R3为卤素原子，SH，NH.sub.2等，R4为氢原子，卤素原子，C.sub.1-C.sub.6烷基等，是一种具有优异活性的除草剂。
• Design and Synthesis of Polycyclic Imidazole‐Containing N‐ Heterocycles based on CH Activation/Cyclization Reactions
  作者：Viktor O. Iaroshenko、Dmytro Ostrovskyi、Mariia Miliutina、Aneela Maalik、Alexander Villinger、Andrei Tolmachev、Dmitriy M. Volochnyuk、Peter Langer

  DOI：10.1002/adsc.201200221

  日期：2012.9.17

  A new strategy for the synthesis of polycyclic imidazole‐containing N‐heterocycles, based on the two general synthetic ways, namely the Pd(II)‐catalyzed intramolecular arylation via CH/CHal and CH/CH coupling reactions, was developed. The method proposed here enables the synthesis of many fused N‐heterocycles containing purine, 1‐deazapurines and benzimidazole structural units.

  基于两种通用的合成方法，即通过CH / CHal和CH / CH偶联反应，Pd（II）催化的分子内芳基化反应，开发了一种合成多环咪唑N-杂环的新策略。本文提出的方法能够合成许多含有嘌呤，1-去氮杂嘌呤和苯并咪唑结构单元的稠合N-杂环。
• Synthesis of Fluorinated Purine and 1-Deazapurine Glycosides as Potential Inhibitors of Adenosine Deaminase
  作者：Viktor O. Iaroshenko、Dmytro Ostrovskyi、Andranik Petrosyan、Satenik Mkrtchyan、Alexander Villinger、Peter Langer

  DOI：10.1021/jo102579g

  日期：2011.4.15

  The synthesis of 2- and 6-trifluoromethylated purines and 1-deazapurines was performed by formal [3 + 3]-cyclization reactions of 5-aminoimidazoles with a set of trifluoromethyl-substituted 1,3-CCC- and 1,3-CNC-dielectrophiles. The corresponding fluorinated nucleosides were synthesized by glycosylation of 9-unsubstituted purines and 1-deazapurines with peracetylated β-ribose, β-glucose, and rhamnose

  2-和6-三氟甲基化嘌呤和1-deazapurines的合成是通过5-氨基咪唑与一组三氟甲基取代的1,3-CCC-和1,3-CNC-进行正式的[3 + 3]环化反应进行的介电体。相应的氟化核苷是通过9个未取代的嘌呤和1-deazapurines与过乙酰化的β-核糖，β-葡萄糖和鼠李糖进行糖基化合成的，然后进行脱保护。这些支架可以被认为是腺苷脱氨酶（ADA）和肌苷单磷酸脱氢酶（IMPDH）酶的潜在抑制剂。
• Pyrimidine derivatives, herbicides and plant growth regulators
  申请人：Nissan Chemical Industries, Ltd.

  公开号：US05773388A1

  公开（公告）日：1998-06-30

  Novel pyrimidine derivatives of the formula (I): ##STR1## wherein R1 is a C.sub.1 -C.sub.6 haloalkyl group, a C.sub.1 -C.sub.6 alkyl group, a C.sub.3 -C.sub.6 cycloalkyl group or the like, R2 is a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group, a C.sub.3 -C.sub.6 cycloalkyl group or the like, and X is a carbonyl group or --C(R3)OH (wherein R3 is a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group or the like).

  化合物的化学式为(I)，其中R1为C1-C6卤代烷基、C1-C6烷基、C3-C6环烷基或类似基团，R2为氢原子、C1-C6烷基、C3-C6环烷基或类似基团，X为羰基或--C(R3)OH（其中R3为氢原子、C1-C6烷基或类似基团）。

表征谱图