4-(trifluormethanesulfonyloxy)benzaldehyde | 17763-69-8

• 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: 4-(trifluormethanesulfonyloxy)benzaldehyde
• 英文别名: 4-formylphenyl trifluoromethanesulfonate；4-formylphenyl triflate；4-phenylcarbaldehyde trifluoromethanesulfonate；4-trifluoromethanesulfonyloxybenzaldehyde；p-formylphenyl triflate；4-(Trifluoromethanesulfonyloxy)benzaldehyde；(4-formylphenyl) trifluoromethanesulfonate
• CAS: 17763-69-8
• 化学式: C₈H₅F₃O₄S
• 分子量: 254.187
• InChiKey: ALUJNTGOUFHAEF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  68.8
• 氢给体数：
  0
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  4-(trifluormethanesulfonyloxy)benzaldehyde 在 caesium carbonate 作用下， 以 甲苯 为溶剂， 反应 15.0h， 以86%的产率得到对羟基苯甲醛
  参考文献：
  名称：

  Cesium carbonate mediated aryl triflate esters’ deprotection

  摘要：

  A variety of diversely substituted aryl triflate esters were efficiently deprotected to the parent phenols by exposure to cesium carbonate in toluene. This procedure proved highly compatible with existing functional groups. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2013.10.087
• 作为产物：
  描述：

  4-(hydroxymethyl)phenyl trifluoromethanesulfonate 在 重铬酸吡啶 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 以83%的产率得到4-(trifluormethanesulfonyloxy)benzaldehyde
  参考文献：
  名称：

  A polystyrene-supported triflating reagent for the synthesis of aryl triflates

  摘要：

  An insoluble polystyrene-supported triflating reagent has been prepared by suspension co-polymerization of N-(4-vinylphenyl)trifluoromethanesulphonimide, styrene and the JandaJel((R)) cross-linker. This reagent, in the presence of triethylamine, allows for the efficient synthesis of aryl triflates from a wide range of phenols in a process that permits the desired product to be isolated from the reaction mixture in essentially pure form via several filtration and concentration operations. Adding to the utility of this reagent is its ability to be easily recovered, regenerated and reused. Both soluble and insoluble bifunctional polymers containing trialkylamine moieties in addition to triflimide groups were also prepared and examined as triflating reagents. Unfortunately these reagents afforded only modest yields of the desired products in representative reactions. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.10.108

文献信息

• Room Temperature Carbonylation of (Hetero) Aryl Pentafluorobenzenesulfonates and Triflates using Palladium-Cobalt Bimetallic Catalyst: Dual Role of Cobalt Carbonyl
  作者：Jayan T. Joseph、Ayyiliath M. Sajith、Revanna C. Ningegowda、Sheena Shashikanth

  DOI：10.1002/adsc.201600736

  日期：2017.2.2

  method for the carbonylation of (hetero) aryl pentafluorobenzenesulfonates and triflates under exceptionally mild conditions using palladium/dicobalt octacarbonyl [Pd/Co2(CO)8] has been developed. Besides acting as carbon monoxide (CO) source, Co2(CO)8 enhances the reaction rate by accelerating the CO insertion through an in situ generated bimetallic palladium cobalt tetracarbonyl [Pd‐Co(CO)4] complex

  已经开发了一种在异常温和的条件下使用钯/二钴八羰基[Pd / Co 2（CO）8 ]对（杂）芳基五氟苯磺酸盐和三氟甲磺酸酯进行羰基化的有效方法。除了充当一氧化碳（CO）源外，Co 2（CO）8还可以通过原位生成的双金属钯四羰基钴[Pd-Co（CO）4）加速CO的插入，从而提高反应速率。] 复杂的。在优化的反应条件下，各种活化和失活的，以及位阻和杂芳族底物的羰基化反应在室温下均能有效进行。生物学上相关的异古瓦汀和拉扎贝米中间体的高化学选择性和改进的合成方法突出了其作为有价值的合成方法的范围。该协议的通用性进一步扩展到其他亲电试剂（溴化物，氯化物和甲苯磺酸盐）。
• Synthesis of Aldehydes by Organocatalytic Formylation Reactions of Boronic Acids with Glyoxylic Acid
  作者：He Huang、Chenguang Yu、Xiangmin Li、Yongqiang Zhang、Yueteng Zhang、Xiaobei Chen、Patrick S. Mariano、Hexin Xie、Wei Wang

  DOI：10.1002/anie.201703127

  日期：2017.7.3

  Reported herein is a conceptually novel organocatalytic strategy for the formylation of boronic acids. New reactivity is engineered into the α‐amino‐acid‐forming Petasis reaction occurring between aryl boronic acids, amines, and glyoxylic acids to prepare aldehydes. The operational simplicity of the process and its ability to generate structurally diverse and valued aryl, heteroaryl, and α,β‐unsaturated

  本文报道了用于硼酸甲酰化的概念上新颖的有机催化策略。在芳基硼酸，胺和乙醛酸之间发生的α-氨基酸形成Petasis反应中引入了新的反应性，以制备醛。该方法的操作简便性及其生成结构多样且有价值的包含多种官能团的芳基，杂芳基和α，β-不饱和醛的能力证明了这种新合成策略的实用性。
• Efficient cross-coupling of aryl/alkenyl triflates with acyclic secondary alkylboronic acids
  作者：Tengda Si、Bowen Li、Wenrui Xiong、Bin Xu、Wenjun Tang

  DOI：10.1039/c7ob02531a

  日期：——

  Aryl–secondary alkyl cross-coupling with aryl sulfonate esters as coupling partners remains a significant challenge. Efficient cross-coupling between aryl/alkenyl triflates and acyclic secondary alkylboronic acids is realized for the first time to provide a series of sterically congested acyclic secondary alkyl arenes/olefins in good to excellent yields. The employment of sterically bulky P,PO ligand L1/L2 is

  芳基-仲烷基与芳基磺酸酯作为偶联伙伴的交叉偶联仍然是一个巨大的挑战。首次实现了芳基/烯基三氟甲磺酸酯与无环仲烷基硼酸之间的有效交叉偶联，从而以良好或优异的收率提供了一系列空间上拥挤的无环仲烷基芳烃/烯烃。使用空间庞大的P，P O配体L1 / L2对于高收率和选择性至关重要。该方法实现了男性避孕药和PAF拮抗剂棉酚的关键中间体的简明和4步合成。
• A Practical in situ Generation of the Schwartz Reagent. Reduction of Tertiary Amides to Aldehydes and Hydrozirconation
  作者：Yigang Zhao、Victor Snieckus

  DOI：10.1021/ol403183a

  日期：2014.1.17

  A new, highly efficient in situ protocol (Cp2ZrCl2/LiAlH(OBu-t)3) is described for the generation of the Schwartz reagent which provides a convenient method for the amide to aldehyde reduction and the regioselective hydrozirconation–iodination of alkynes and alkenes. Highlighted are chemoselective reductions of benzamides derived by directed ortho metalation (DoM) chemistry, allowing the synthesis

  描述了一种新的高效原位实验方案（Cp 2 ZrCl 2 / LiAlH（OBu- t）3），用于产生Schwartz试剂，该试剂为酰胺到醛的还原以及炔烃的区域选择性加氢锆化加碘提供了便利的方法。和烯烃。突出显示的是通过定向邻位金属化（D o M）化学反应生成的苯甲酰胺的化学选择性还原，可合成有价值的1,2,3-取代的苯甲醛。单步三组分过程在非常短的反应时间内进行，显示出极好的官能团相容性，并使用廉价且长期保存的稳定还原剂。
• Terminal‐Selective Functionalization of Alkyl Chains by Regioconvergent Cross‐Coupling
  作者：Stéphanie Dupuy、Ke‐Feng Zhang、Anne‐Sophie Goutierre、Olivier Baudoin

  DOI：10.1002/anie.201608535

  日期：2016.11.14

  zinc bromides and regioconvergent Negishi coupling with aryl or alkenyl triflates. The use of a suitable phosphine ligand favoring Pd migration enabled the selective formation of the linear cross‐coupling product. Subsequently, mixtures of secondary alkyl bromides were prepared from linear alkanes by standard bromination, and regioconvergent cross‐coupling then provided access to the corresponding linear

  碳氢化合物仍然是功能化有机分子的最重要前体，在新型CH键功能化方法的发现中引起了人们的兴趣。我们在这里描述了一种新的步骤经济的方法，该方法使C-C键能够在直链烷烃的末端位置进行构建。首先，我们表明仲烷基溴化物可以原位转化为烷基溴化锌和与会聚芳基或烯基三氟甲磺酸酯的区域收敛的Negishi。使用合适的膦配体促进Pd迁移，可以选择性形成线性交叉偶联产物。随后，通过标准溴化反应，由直链烷烃制备仲烷基溴化物的混合物，然后通过区域会聚交叉偶联，仅需两个步骤即可获得相应的线性芳基化产物。