1,5-bis(4-fluorophenyl)penta-1,4-diyn-3-one | 1430234-44-8

• 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: 1,5-bis(4-fluorophenyl)penta-1,4-diyn-3-one
• 英文别名: 1,5-Bis(4-fluorophenyl)penta-1,4-diyn-3-one
• CAS: 1430234-44-8
• 化学式: C₁₇H₈F₂O
• 分子量: 266.247
• InChiKey: ZKUKIKWLUMLWLX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.7
• 重原子数：
  20
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  1,5-bis(4-fluorophenyl)penta-1,4-diyn-3-one 在 1,1'-双(二苯基膦)二茂铁 、 chloro(1,5-cyclooctadiene)rhodium(I) dimer 、 氯苯 作用下， 反应 24.5h， 以73%的产率得到1-氟-4-[4-(4-氟苯基)丁-1,3-二炔基]苯
  参考文献：
  名称：

  Rh(I)-Catalyzed Decarbonylation of Diynones via C–C Activation: Orthogonal Synthesis of Conjugated Diynes

  摘要：

  Utilization of C-C bond activation as a unique mode of reactivity for constructing C-C bonds provides new strategies for preparing important organic molecules. Development of a Rh(I)-catalyzed C-C activation of diynones to synthesize symmetrical and unsymmetrical conjugated diynes through decarbonylation is reported. This C-C cleavage strategy takes advantage of the innate reactivity of conjugated ynones without relying on any ring strain or auxiliary directing group. This alkynation method also has orthogonal properties compared to typical cross-coupling reactions.

  DOI：

  10.1021/ol400815y
• 作为产物：
  描述：

  1-(2,2-二溴乙烯基)-4-氟苯 在 manganese(IV) oxide 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 3.25h， 生成 1,5-bis(4-fluorophenyl)penta-1,4-diyn-3-one
  参考文献：
  名称：

  Rh(I)-Catalyzed Decarbonylation of Diynones via C–C Activation: Orthogonal Synthesis of Conjugated Diynes

  摘要：

  Utilization of C-C bond activation as a unique mode of reactivity for constructing C-C bonds provides new strategies for preparing important organic molecules. Development of a Rh(I)-catalyzed C-C activation of diynones to synthesize symmetrical and unsymmetrical conjugated diynes through decarbonylation is reported. This C-C cleavage strategy takes advantage of the innate reactivity of conjugated ynones without relying on any ring strain or auxiliary directing group. This alkynation method also has orthogonal properties compared to typical cross-coupling reactions.

  DOI：

  10.1021/ol400815y

文献信息

• Regiodivergent Hydration–Cyclization of Diynones under Gold Catalysis
  作者：Marta Solas、Miguel A. Muñoz、Samuel Suárez-Pantiga、Roberto Sanz

  DOI：10.1021/acs.orglett.0c02892

  日期：2020.10.2

  Skipped diynones, efficiently prepared from biomass-derived ethyl lactate, undergo a tandem hydration–oxacyclization reaction under gold(I) catalysis. Reaction conditions have been developed for a switchable process that allows selective access to 4-pyrones or 3(2H)-furanones from the same starting diynones. Further application of this methodology in the total synthesis of polyporapyranone B was demonstrated

  由生物质衍生的乳酸乙酯有效制备的已跳过的二炔酮，在金（I）催化下经历了串联水合-氧环化反应。已经开发了用于可切换过程的反应条件，该过程允许从相同的起始二炔酮选择性地获得4-吡喃酮或3（2 H）-呋喃酮。证明了该方法在聚吡喃酮B的全合成中的进一步应用。
• An Unexpected Domino Reaction of β-Keto Sulfones with Acetylene Ketones Promoted by Base: Facile Synthesis of 3(2<i>H</i> )-Furanones and Sulfonylbenzenes
  作者：Wei Tong、Qian-Yu Li、Yan-Li Xu、Heng-Shan Wang、Yan-Yan Chen、Ying-Ming Pan

  DOI：10.1002/adsc.201700830

  日期：2017.11.23

  An unexpected domino reaction of β‐keto sulfones with acetylene ketones has been developed. The domino reaction of β‐keto sulfones with diynones proceeded smoothly in the presence of 30 mol% K2CO3 without other additives, and afforded the novel 3(2H)‐furanone derivatives. On replacing the diynones with terminal alkyne ketones, the reaction regioselectivity was changed and sulfonylbenzenes were obtained

  β-酮砜与乙炔酮发生了意想不到的多米诺反应。在没有其他添加剂的情况下，在30 mol％K 2 CO 3的存在下，β-酮砜与二炔酮的多米诺反应顺利进行，得到了新颖的3（2 H）-呋喃酮衍生物。用末端炔烃酮取代二炔酮后，反应区域选择性改变，并通过苯环化获得磺酰苯，收率很高。
• Transition Metal-Free Synthesis of 3-Alkynylpyrrole-2-carboxylates<i>via</i>Michael Addition/Intramolecular Cyclodehydration
  作者：Qing-hu Teng、Yan-li Xu、Ying Liang、Heng-shan Wang、Ying-chun Wang、Ying-ming Pan

  DOI：10.1002/adsc.201501073

  日期：2016.6.16

  the synthesis of 3‐alkynylpyrrole‐2‐carboxylates from diynones and glycine esters or 2‐aminoacetophenone hydrochloride has been developed. This transformation provides a large range of substituted pyrroles in good to excellent yields with the elimination of water as the only by‐product. The detailed mechanistic studies elucidated that this transformation involves a Michael addition/intramolecular cyclodehydration

  已开发出一种无过渡金属的高效方法，该方法可从二炔酮和甘氨酸酯或2-氨基苯乙酮盐酸盐合成3-炔基吡咯-2-羧酸酯。这种转变提供了多种取代的吡咯，其收率高至优异，同时消除了水作为唯一的副产物。详细的机械研究表明，这种转变涉及迈克尔加成/分子内环脱水过程。
• Brønsted Acid Catalyzed and NIS-Promoted Cyclization of Diynones: Selective Synthesis of 4-Pyrone, 4-Pyridone, and 3-Pyrrolone Derivatives
  作者：Yi-Feng Qiu、Fang Yang、Zi-Hang Qiu、Mei-Jin Zhong、Li-Jing Wang、Yu-Ying Ye、Bo Song、Yong-Min Liang

  DOI：10.1021/jo402055a

  日期：2013.12.6

  Brønsted acid catalyzed tandem cyclization was found to be highly effective for the preparation of a series of polysubstituted 4-pyrones from diynones (yield up to 99%). 4-Pyridone and 3-pyrrolone derivatives were also selectively synthesized by employing NIS and/or Brønsted acid. NIS as an electrophilic reagent could promote these reactions efficiently and rapidly under very mild reaction conditions

  发现布朗斯台德酸催化的串联环化对于从二炔酮制备一系列多取代的4-吡喃酮非常有效（收率高达99％）。还通过使用NIS和/或布朗斯台德酸选择性地合成了4-吡啶酮和3-吡咯烷酮衍生物。NIS作为亲电子试剂可以在非常温和的反应条件下有效而迅速地促进这些反应。
• Phosphine-Catalyzed Synthesis of 3-Allyl-4-pyrones by the Tandem Reaction of Diynones and Allylic Alcohols
  作者：Ya-Fang Ye、Wan-Wan Yang、Jing-Wen Zhang、Ji-Ya Fu、Jun-Yan Zhu、Yan-Bo Wang

  DOI：10.1021/acs.joc.1c01340

  日期：2021.11.5

  A simple and effective tandem reaction of diynones and allylic alcohols was developed to afford functionalized 3-allyl-4-pyrones in moderate to excellent yields. This protocol underwent a Michael addition─Claisen rearrangement─O-cyclization process, which exhibited broad substrate tolerance, high regioselectivity, and atom economy under a metal-free condition. Moreover, functional transformation of

  开发了一种简单有效的二炔酮和烯丙醇的串联反应，以中等至优异的产率提供官能化的 3-allyl-4-pyrones。该协议经历了迈克尔加成─克莱森重排─O-环化过程，在无金属条件下表现出广泛的底物耐受性、高区域选择性和原子经济性。此外，还进一步研究了产品的功能转化。