2,2-difluoro-1-(3,5-dimethoxyphenyl)ethanone

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2,2-difluoro-1-(3,5-dimethoxyphenyl)ethanone
• 英文别名: 1-(3,5-dimethoxyphenyl)-2,2-difluoroethanone；1-(3,5-dimethoxyphenyl)-2,2-difluoroethan-1-one；1-(3,5-Dimethoxyphenyl)-2,2-difluoroethan-1-one
• 化学式: C₁₀H₁₀F₂O₃
• 分子量: 216.184
• InChiKey: PCHGCQAGYZWEEX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  15
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  1-(3,5-dimethoxyphenyl)-2,2,2-trifluoroethan-1-one 在 bis{rhodium[3,3'-(1,3-phenylene)bis(2,2-dimethylpropanoic acid)]} 、 水 、 N,N-二异丙基乙胺 作用下， 以 氯仿 、 乙酸乙酯 为溶剂， 反应 30.0h， 生成 2,2-difluoro-1-(3,5-dimethoxyphenyl)ethanone
  参考文献：
  名称：

  氟代烷基酮渐进式（氘代）加氢脱氟的卡宾策略

  摘要：

  报道了一种用于氟代烷基酮顺序（氘代）加氢脱氟的卡宾策略。该方法允许从芳基和烷基取代的全氟烷基酮以高产率可控制备二氟烷基酮和单氟烷基酮，并具有优异的官能团耐受性。

  DOI：

  10.1002/anie.202116190

文献信息

• Synthesis of Difluoromethyl Ketones from Weinreb Amides, and Tandem Addition/Cyclization of <i>o</i> -Alkynylaryl Weinreb Amides
  作者：Jongkonporn Phetcharawetch、Nolan M. Betterley、Darunee Soorukram、Manat Pohmakotr、Vichai Reutrakul、Chutima Kuhakarn

  DOI：10.1002/ejoc.201701322

  日期：2017.12.15

  [Difluoro(phenylsulfanyl)methyl]trimethylsilane (PhSCF2SiMe3) underwent a fluoride-induced nucleophilic addition to the carbonyl group of Weinreb amides to provide the corresponding difluoro(phenylsulfanyl)methyl ketones. These were converted into difluoromethyl ketones through selective reductive cleavage of the phenylsulfanyl group. The reaction of o-alkynyl Weinreb amides derived from benzoic acid derivatives resulted

  [二氟（苯硫基）甲基]三甲基硅烷（PhSCF2SiMe3）与Weinreb酰胺的羰基发生氟化物诱导的亲核加成反应，得到相应的二氟（苯硫基）甲基酮。它们通过苯硫基的选择性还原裂解转化为二氟甲基酮。衍生自苯甲酸衍生物的邻炔基 Weinreb 酰胺的反应导致通过 5-exo-dig 环化形成环化产物。
• In Situ Generated Fluorinated Iminium Salts for Difluoromethylation and Difluoroacetylation
  作者：Etienne Schmitt、Baptiste Rugeri、Armen Panossian、Jean-Pierre Vors、Sergii Pazenok、Frédéric R. Leroux

  DOI：10.1021/acs.orglett.5b02184

  日期：2015.9.18

  The use of TFEDMA, a fluoroalkyl amino reagent, for the difluoromethylation and difluoroacylation of arenes, heteroarenes, and C-H acidic compounds is reported. This approach allows for an efficient access to difluoromethylated products of high added value in good to excellent yields and with scale-up possibilities.
• Palladium-catalyzed fluoroacylation of (Hetero)arylboronic acid with fluorothioacetates at ambient temperature
  作者：Xing Yi、Ya-Fang Cao、Xing Wang、Hui Xu、Shu-Rong Ban、Hui-Xiong Dai

  DOI：10.1016/j.tetlet.2020.151780

  日期：2020.4

  A palladium-catalyzed fluoroacylation of (hetero)aryl boronic acid with the fluorothioacetates is described at ambient temperature. A variety of aryl, and heteroaryl boronic acids are compatible in the reaction, affording the corresponding fluoroalkyl ketones in moderate to good yields. Further late-stage di-, and trifluoroacylation of drug molecule clofibrate and estrone demonstrated the synthetic practicability of this protocol.2009 Elsevier Ltd. All rights reserved. (C) 2020 Elsevier Ltd. All rights reserved.