7,7-difluoro-1-phenylbicyclo[4.1.0]heptane | 1241957-39-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 7,7-difluoro-1-phenylbicyclo[4.1.0]heptane
• 英文别名: (7,7-difluorobicyclo[4.1.0]hept-1-yl)benzene
• CAS: 1241957-39-0
• 化学式: C₁₃H₁₄F₂
• 分子量: 208.251
• InChiKey: FTKDGROQWHTWOM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  15
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.54
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  7,7-difluoro-1-phenylbicyclo[4.1.0]heptane 生成 phenylcycloheptane
  参考文献：
  名称：

  ISOGAI, KOJI;SAKAI, JUN-ICHI;KOSUGI, KATSUHIKO, BULL. CHEM. SOC. JAP., 1986, 59, N 5, 1349-1353

  摘要：

  DOI：
• 作为产物：
  描述：

  氟磺酰基二氟乙酸甲酯 、 1-苯基-1-环已烯 在 三甲基氯硅烷 、 二乙二醇二甲醚 、 potassium iodide 作用下， 以 1,4-二氧六环 为溶剂， 反应 48.0h， 以98%的产率得到7,7-difluoro-1-phenylbicyclo[4.1.0]heptane
  参考文献：
  名称：

  Methyl 2,2-Difluoro-2-(fluorosulfonyl)acetate, a Difluorocarbene Reagent with Reactivity Comparable to That of Trimethylsilyl 2,2-Difluoro-2-(fluorosulfonyl)acetate (TFDA)

  摘要：

  Under specific high concentration, high temperature conditions, methyl 2,2-difluoro-2-(fluorosulfonyl)acetate (MDFA) has been found to act as a very efficient source of difluorocarbene, exhibiting carbene reactivity characteristics comparable to those exhibited by trimethylsilyl 2,2-difluoro-2-(fluorosulfonyl)acetate (TFDA). For example, in reaction with highly unreactive n-butyl acrylate and using only 2 equiv of MDFA, a yield of 76% of difluorocyclopropane product was obtained after 2 days.

  DOI：

  10.1021/jo300876z

文献信息

• METHOD FOR PRODUCING DIFLUOROCYCLOPROPANE COMPOUND
  申请人：Amii Hideki

  公开号：US20120277458A1

  公开（公告）日：2012-11-01

  Provided is a method for producing a difluorocyclopropane compound under milder reaction conditions and with high selectivity and high yield. The method for producing a difluorocyclopropane compound of the present invention is characterized by using sodium bromodifluoroacetate as a difluorocyclopropanation agent. With the disclosed method, a difluorocyclopropane compound can be produced under milder reaction conditions and with a higher conversion rate and a higher yield compared to conventional art. Further, by-products can be reduced significantly, thus allowing waste to be greatly reduced. Accordingly, the production method of the present invention is easy to implement industrially (can be employed on an industrial scale) and is thus extremely practical and useful.

  提供了一种在较温和的反应条件下、具有高选择性和高产率的制备二氟环丙烷化合物的方法。本发明的制备二氟环丙烷化合物的方法的特点是使用溴二氟乙酸钠作为二氟环丙烷化试剂。通过所披露的方法，与传统技术相比，可以在较温和的反应条件下生产二氟环丙烷化合物，并且具有更高的转化率和更高的产率。此外，副产物可以显著减少，从而大大减少废物。因此，本发明的生产方法易于在工业上实施（可在工业规模上应用），因此极其实用和有用。
• Difluorocarbene Addition to Alkenes and Alkynes in Continuous Flow
  作者：Pauline Rullière、Patrick Cyr、André B. Charette

  DOI：10.1021/acs.orglett.6b00573

  日期：2016.5.6

  The first in-flow difluorocarbene generation and addition to alkenes and alkynes is reported. The application of continuous flow technology allowed for the controlled generation of difluorocarbene from TMSCF3 and a catalytic quantity of NaI. The in situ generated electrophilic carbene reacts smoothly with a broad range of alkenes and alkynes, allowing the synthesis of the corresponding difluorocyclopropanes

  据报道，第一批流入的二氟卡宾产生并添加到烯烃和炔烃中。连续流技术的应用使得可控制地从TMSCF 3生成二氟卡宾和催化量的NaI。该原位生成的电子发生反应卡宾顺利与广泛的烯烃和炔烃的，从而允许对应的difluorocyclopropanes和difluorocyclopropenes的合成。在高反应浓度下，反应会在10分钟的停留时间内完成。以1 mmol / min的生产流速，连续流化学法能够以绿色，原子经济和安全的方式扩大该过程的规模。
• Synthesis of gem-Difluorinated Cyclopropanes and Cyclopropenes: Trifluoromethyltrimethylsilane as a Difluorocarbene Source
  作者：Fei Wang、Tao Luo、Jinbo Hu、Ying Wang、Hema S. Krishnan、Parag V. Jog、Somesh K. Ganesh、G. K. Surya Prakash、George A. Olah

  DOI：10.1002/anie.201101691

  日期：2011.7.25

  Highly versatile: The Ruppert–Prakash reagent (Me3SiCF3) can be an efficient source of difluorocarbene. By varying the nonmetallic initiator that is used (F− at lower temperatures and I− at higher temperatures), a range of structurally diverse alkenes and alkynes can be converted into the corresponding gem‐difluorinated cyclopropanes and cyclopropenes in good yields (see scheme).

  用途广泛：Ruppert–Prakash试剂（Me 3 SiCF 3）可以是二氟卡宾的有效来源。通过改变所使用的非金属引发剂（F -在较低温度和我-在更高的温度），范围结构多样的烯烃和炔烃的可转化成相应的宝石-difluorinated以良好产率和环丙烷环丙烯（参见方案）。
• Pd/IPr^BIDEA-Catalyzed Hydrodefluorination of <i>gem</i>-Difluorocyclopropanes: Regioselective Synthesis of Terminal Fluoroalkenes
  作者：Huijun Qian、Zachary P. Cheng、Yani Luo、Leiyang Lv、Shuming Chen、Zhiping Li

  DOI：10.1021/jacs.3c07992

  日期：2024.1.10

  Developing new strategies to enable chemo- and regioselective reductions is an important topic in chemical research. Herein, an efficient and regioselective Pd/IPrBIDEA-catalyzed ring-opening hydrodefluorination of gem-difluorocyclopropanes to access terminal fluoroalkenes is developed. The success of this transformation was attributed to the use of 3,3-dimethylallyl Bpin as a novel hydride donor.

  开发新策略以实现化学和区域选择性还原是化学研究中的一个重要课题。在此，开发了一种高效且区域选择性的 Pd/IPr BIDEA催化的偕二氟环丙烷的开环加氢脱氟反应以得到末端氟代烯烃。这一转化的成功归功于使用 3,3-二甲基烯丙基 Bpin 作为新型氢化物供体。 DFT 计算表明，通过 9 元环状过渡态进行直接 3,4'-氢化物转移更为有利，再加上反应的不可逆性，使得对热力学稳定性较差的末端烯烃异构体具有不同寻常的选择性。该反应模式也适用于各种区域选择性烯丙基和炔丙基还原。
• Methyl 2,2-Difluoro-2-(fluorosulfonyl)acetate, a Difluorocarbene Reagent with Reactivity Comparable to That of Trimethylsilyl 2,2-Difluoro-2-(fluorosulfonyl)acetate (TFDA)
  作者：Steffen Eusterwiemann、Henry Martinez、William R. Dolbier

  DOI：10.1021/jo300876z

  日期：2012.6.15

  Under specific high concentration, high temperature conditions, methyl 2,2-difluoro-2-(fluorosulfonyl)acetate (MDFA) has been found to act as a very efficient source of difluorocarbene, exhibiting carbene reactivity characteristics comparable to those exhibited by trimethylsilyl 2,2-difluoro-2-(fluorosulfonyl)acetate (TFDA). For example, in reaction with highly unreactive n-butyl acrylate and using only 2 equiv of MDFA, a yield of 76% of difluorocyclopropane product was obtained after 2 days.