methyl 2-(difluoromethyl)nicotinate | 1355729-93-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: methyl 2-(difluoromethyl)nicotinate
• 英文别名: methyl 2-(difluoromethyl)pyridine-3-carboxylate；Methyl 2-(difluoromethyl)nicotinate
• CAS: 1355729-93-9
• 化学式: C₈H₇F₂NO₂
• 分子量: 187.146
• InChiKey: DCURSZBFFZNIBK-UHFFFAOYSA-N

物化性质

• 沸点：
  236.3±40.0 °C(Predicted)
• 密度：
  1.260±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  39.2
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  methyl 2-(difluoromethyl)nicotinate 在 二异丁基氢化铝 作用下， 以 四氢呋喃 为溶剂， 反应 16.0h， 以89.6%的产率得到[2-(difluoromethyl)pyridin-3-yl]methanol
  参考文献：
  名称：

  [EN] PYRIDAZINONES AND METHODS OF USE THEREOF
  [FR] PYRIDAZINONES ET LEURS PROCÉDÉS D'UTILISATION

  摘要：

  公开号：

  WO2019055966A3
• 作为产物：
  描述：

  3-溴吡啶-2-甲醛 在 四(三苯基膦)钯 、 二乙胺基三氟化硫 作用下， 以 二氯甲烷 为溶剂， -10.0~120.0 ℃ 、1.01 MPa 条件下， 反应 2.0h， 生成 methyl 2-(difluoromethyl)nicotinate
  参考文献：
  名称：

  [EN] PYRIDAZINONES AND METHODS OF USE THEREOF
  [FR] PYRIDAZINONES ET LEURS PROCÉDÉS D'UTILISATION

  摘要：

  公开号：

  WO2019055966A3

文献信息

• [EN] DIFLUOROMETHYLATION OF UNSATURATED COMPOUNDS<br/>[FR] DIFLUOROMÉTHYLATION DE COMPOSÉS INSATURÉS
  申请人：SCRIPPS RESEARCH INST

  公开号：WO2013082028A1

  公开（公告）日：2013-06-06

  A reagent for carrying out a difluoromethylation reaction of unsaturated compounds and ring-nitrogen-containing aromatic compounds, a zinc difluoro-methanesulfinate, as well as a method for making the reagent and a method for its use are disclosed.

  一种用于执行不饱和化合物和含环氮芳香化合物的二氟甲基化反应的试剂，以及一种锌二氟甲磺酸酯，以及制造该试剂的方法及其用途。
• Difluoromethylation Of Unsaturated Compounds
  申请人：The Scripps Research Institute

  公开号：US20150011760A1

  公开（公告）日：2015-01-08

  A reagent for carrying out a difluoromethylation reaction of unsaturated compounds and ring-nitrogen-containing aromatic compounds, a zinc difluoro-methanesulfinate, as well as a method for making the reagent and a method for its use are disclosed.

  本发明公开了一种用于进行不饱和化合物和环氮含芳香化合物的二氟甲基化反应的试剂，即锌二氟甲基磺酰亚胺，以及制备该试剂的方法和使用该试剂的方法。
• [Ph ₄ P] ⁺ [Cu(CF ₂ H) ₂ ] ⁻ : A Powerful Difluoromethylating Reagent Inspired by Mechanistic Investigation
  作者：Haiwei Zhao、Xuebing B. Leng、Wei Zhang、Qilong Shen

  DOI：10.1002/anie.202210151

  日期：2022.10.17

  A powerful difluoromethylating reagent [Ph4P]+[Cu(CF2H)2]− that was able to difluoromethylate a variety of aryl and alkyl electrophiles was developed. In the presence of an oxidant, complex 2 also reacted with various lithium nbutyl arylboronic acid pinacol esters, alkyne and heteroarene. Moreover, complex 2 could transmetalate the difluoromethyl reagent to other metals such as [Ph4P]+[Cu(Cl2)]− and

  开发了一种强大的二氟甲基化试剂 [Ph 4 P] + [Cu(CF 2 H) 2 ] −，它能够二氟甲基化各种芳基和烷基亲电子试剂。在氧化剂存在下，络合物2还与各种锂正丁基芳基硼酸频哪醇酯、炔烃和杂芳烃反应。此外，络合物2可以将二氟甲基试剂金属转移到其他金属，例如 [Ph 4 P] + [Cu(Cl 2 )] -和 [(DPPF)Pd(Cl) 2 ]。
• A New Reagent for Direct Difluoromethylation
  作者：Yuta Fujiwara、Janice A. Dixon、Rodrigo A. Rodriguez、Ryan D. Baxter、Darryl D. Dixon、Michael R. Collins、Donna G. Blackmond、Phil S. Baran

  DOI：10.1021/ja211422g

  日期：2012.1.25

  Molecular scaffolds containing alkylfluorine substituents are desired in many areas of chemical research from materials to pharmaceuticals. Herein, we report the invention of a new reagent (Zn(SO2CF2H)(2), DFMS) for the innate difluoromethylation of organic substrates via a radical process. This mild, operationally simple, chemoselective, and scalable difluoromethylation method is compatible with a range of nitrogen-containing heteroarene substrates of varying complexity as well as select classes of conjugated pi-systems and thiols. Regiochemical comparisons suggest that the CF2H radical generated from the new reagent possesses nucleophilic character.
• Sodium difluoromethanesulfinate—A difluoromethylating agent toward protonated heterocyclic bases
  作者：M. A. Lytkina、E. V. Eliseenkov、V. P. Boyarskii、A. A. Petrov

  DOI：10.1134/s1070428017040066

  日期：2017.4

  Free radical difluoromethylation of protonated heteroaromatic bases was accomplished using sodium difluoromethanesulfinate in combination with tert-butyl hydroperoxide in a two-phase system (methylene chloride-water) at room temperature. The difluoromethylation products of methyl pyridine-4-carboxylate, pyridine-4-carbonitrile, and 2-amino-1,3,4-thiadiazole were isolated on a preparative scale.