1-(2-溴-3-甲基苯基)乙酮 | 944268-58-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 1-(2-溴-3-甲基苯基)乙酮
• 中文别名: 2-溴-3-甲基苯乙酮
• 英文名称: 1-(2-bromo-3-methylphenyl)ethanone
• CAS: 944268-58-0
• 化学式: C₉H₉BrO
• 分子量: 213.074
• InChiKey: KFBAJJMHDBXFIB-UHFFFAOYSA-N

物化性质

• 沸点：
  273.8±28.0 °C(Predicted)
• 密度：
  1.388±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  11
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

安全信息

• 海关编码：
  2914700090
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335

反应信息

• 作为反应物：
  描述：

  1-(2-溴-3-甲基苯基)乙酮 在 正丁基锂 、 (Ra)-4-hydroxy-2,6-bis(2,4,6-triisopropylphenyl)-5,5’,6,6’,7,7’,8,8’-octahydrodinaphtho[1,3,2]dioxaphosphepine 4-oxide 、 C₁₅H₁₉F₄N₂⁽¹⁺⁾*Cl^(1-)*Br₂ 、 potassium tert-butylate 、 potassium carbonate 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 反应 23.5h， 生成 (S)-3-(bromomethyl)-1,3-dihydro-3,7-dimethyl-1,1-diphenylbenzo[c][1,2]oxasilole
  参考文献：
  名称：

  Enantioselective Bromo-oxycyclization of Silanol

  摘要：

  Relying on the nucleophilicity of silanol for building up silicon-incorporated scaffold with an enantiopure tetrasubstituted carbon center remains elusive. In this report, asymmetric bromo-oxycyclization of olefinic silanol by using chiral anionic phase-transfer catalyst is described. This protocol provided a facile entry to a wide arrangement of enantiopure benzoxasilole in moderate to excellent enantioselectivities depending on the unique reactivity of bromine/N-benzyl-DABCO complex.

  DOI：

  10.1021/acs.orglett.5b03303
• 作为产物：
  描述：

  2-溴-3-甲基苯甲酸 在 氯化亚砜 、 三乙胺 、 magnesium chloride 作用下， 以 乙腈 为溶剂， 反应 7.5h， 生成 1-(2-溴-3-甲基苯基)乙酮
  参考文献：
  名称：

  [EN] INHIBITORS OF VIRAL REPLICATION, THEIR PROCESS OF PREPARATION AND THEIR THERAPEUTICAL USES
  [FR] INHIBITEURS DE RÉPLICATION VIRALE, LEUR PROCÉDÉ DE PRÉPARATION ET LEURS UTILISATIONS THÉRAPEUTIQUES

  摘要：

  本发明涉及化合物，及其在治疗或预防病毒性疾病，包括HIV方面的应用。

  公开号：

  WO2012140243A1

文献信息

• [EN] 2-PHENYL OR 2-HETARYL IMIDAZOL[1,2-a]PYRIDINE DERIVATIVES<br/>[FR] DÉRIVÉS DE 2-PHÉNYL- OU 2-HÉTARYL-IMIDAZOL[1,2-A]PYRIDINE
  申请人：HOFFMANN LA ROCHE

  公开号：WO2014177458A1

  公开（公告）日：2014-11-06

  The invention relates to compounds of formulas I and II, formula I or formula II wherein R1 is hydrogen, lower alkyl, lower alkoxy, halogen, S-lower alkyl, lower alkoxy substituted by halogen, di-lower alkyl amino, C(O)O-lower alkyl, lower alkyl substituted by hydroxy or hydroxy; R2 is hydrogen, lower alkyl, halogen, lower alkoxy, S-lower alkyl, lower alkoxy substituted by halogen, O(CH2)2-lower alkoxy substituted by halogen, di-lower alkyl amino, alkyl amino, NH-lower alkyl substituted by halogen, N(lower alkyl)-benzyl, lower alkyl substituted by hydroxy, heterocycloalkyl optionally substituted by halogen, CH2-lower alkoxy, CH2-lower alkoxy substituted by halogen or hydroxy; or R1 and R2 form together with the carbon atoms to which they are attached a ring containing -OCH2CH2O-, OCH2O-, OCH2CH2CH2O- or -NHC(O)CH2O-; R3 is hydrogen or lower alkoxy; R4 is hydrogen or lower alkyl; R5 is lower alkyl, cycloalkyl, lower alkyl substituted by hydroxy or lower alkyl substituted by halogen; or R4 and R5 form together with the nitrogen atom to which they are attached a ring containing -CH2CH2CHRCH2CH2-, -CH2CHRCH2CH2-, -CH2CH2OCH2CH2-, -CH2CH2NR'CH2CH2-, CH2CHR- or -CH2CH2CH2-; wherein R is hydrogen, halogen, lower alkyl, lower alkoxy or lower alkyl substituted by halogen; R' is lower alkyl substituted by halogen; Ra is hydrogen or H; Rb is hydrogen, hydroxy or 3H; R6 is hydrogen, halogen or lower alkyl; HetAr is selected from the group consisting of thiophenyl, furanyl, thiozolyl, benzofuranyl, pyrazolyl, benzoimidazolyl or pyridinyl; n is 1 or 2; or to a pharmaceutically acceptable acid addition salt, to a racemic mixture or to its corresponding enantiomer and/or optical isomers thereof. The present compounds are suitable as imaging tool, which will improve diagnosis by identifying potential patients with excess of tau aggregates in the brain, which may be likely to develop Alzheimer's disease.

  本发明涉及式I和式II的化合物，式I或式II中，R1为氢、低级烷基、低级烷氧基、卤素、S-低级烷基、卤素取代的低级烷氧基、二-低级烷基氨基、C(O)O-低级烷基、羟基取代的低级烷基或羟基；R2为氢、低级烷基、卤素、低级烷氧基、S-低级烷基、卤素取代的低级烷氧基、O(CH2)2-卤素取代的低级烷氧基、二-低级烷基氨基、烷基氨基、NH-卤素取代的低级烷基、N(低级烷基)-苄基、羟基取代的低级烷基、任选卤素取代的杂环烷基、CH2-低级烷氧基、CH2-卤素或羟基取代的低级烷氧基；或者R1和R2与其所连接的碳原子一起形成含有-OCH2CH2O-、OCH2O-、OCH2CH2CH2O-或-NHC(O)CH2O-的环；R3为氢或低级烷氧基；R4为氢或低级烷基；R5为低级烷基、环烷基、羟基取代的低级烷基或卤素取代的低级烷基；或者R4和R5与其所连接的氮原子一起形成含有-CH2CH2CHRCH2CH2-、-CH2CHRCH2CH2-、-CH2CH2OCH2CH2-、-CH2CH2NR'CH2CH2-、CH2CHR-或-CH2CH2CH2-的环；其中R为氢、卤素、低级烷基、低级烷氧基或卤素取代的低级烷基；R'为卤素取代的低级烷基；Ra为氢或H；Rb为氢、羟基或3H；R6为氢、卤素或低级烷基；HetAr选自噻吩基、呋喃基、噻唑基、苯并呋喃基、吡唑基、苯并咪唑基或吡啶基；n为1或2；或为药学上可接受的酸加成盐、外消旋混合物或其相应的对映体和/或光学异构体。本发明的化合物适合作为成像工具，通过识别大脑中tau聚集体过量的潜在患者，将有助于改善诊断，这些患者可能发展为阿尔茨海默病。
• Annulative Morita–Baylis–Hillman reaction to synthesise chiral dibenzocycloheptanes
  作者：Atanu Mondal、Shivangi、Pinku Tung、Siddhant V. Wagulde、S. S. V. Ramasastry

  DOI：10.1039/d1cc02765d

  日期：——

  We describe the first metal-free and organocatalytic strategy to access highly functionalised dibenzocycloheptanes via a phosphine-promoted annulative Morita–Baylis–Hillman (MBH) reaction. The method is manipulated to access to chiral dibenzocycloheptanes as well. This work represents a rare entry for the construction of seven-membered carbocycles via the MBH route. The realisation of several bioactive

  我们描述了第一个无金属和有机催化策略，通过膦促进的 Morita-Baylis-Hillman (MBH) 反应获得高度官能化的二苯并环庚烷。该方法也用于获得手性二苯并环庚烷。这项工作代表了通过MBH 路线构建七元碳环的罕见入口。具有二苯并环庚烷核心的几种生物活性分子的实现使其成为一种有吸引力的策略。
• AROMATIC COMPOUNDS
  申请人：Merck Patent GmbH

  公开号：US20200039903A1

  公开（公告）日：2020-02-06

  The present invention relates to aromatic compounds suitable for preparation of asymmetric polydentate ligands. The present invention further describes a process for preparing asymmetric polydentate ligands and metal complexes comprising these ligands which are suitable for use as emitters in organic electroluminescent devices.

  本发明涉及适用于制备不对称多齿配体的芳香化合物。本发明进一步描述了一种制备不对称多齿配体和包括这些配体的金属络合物的方法，这些金属络合物适用于作为有机电致发光器件中的发射体。
• Palladium-Catalyzed Sequential Vinyl C–H Activation/Dual Decarboxylation: Regioselective Synthesis of Phenanthrenes and Cyclohepta[1,2,3-de]naphthalenes
  作者：Guomin Jiang、Hao Ye、Lei Shi、Hong Dai、Xin-Xing Wu

  DOI：10.1021/acs.orglett.1c03517

  日期：2021.12.17

  The application of a C(vinyl), C(aryl)-palladacycle from vinyl-containing substrates is challenging due to the interference of a reactive double bond in palladium catalysis. This Letter describes a [4 + 2] or [4 + 3] cyclization based on a C(vinyl), C(aryl)-palladacycle by employing α-oxocarboxylic acids as the insertion units under a palladium/air system. The reaction proceeded through the key vinyl

  由于钯催化中反应性双键的干扰，从含乙烯基底物中应用 C(乙烯基)、C(芳基)-钯环具有挑战性。这封信描述了基于 C（乙烯基）、C（芳基）-钯环的 [4 + 2] 或 [4 + 3] 环化反应，在钯/空气系统下使用 α-氧代羧酸作为插入单元。该反应通过关键的乙烯基 C-H 活化和双脱羧序列进行，以良好的产率区域选择性地形成菲和环庚 [1,2,3-de] 萘。克级合成和合成功能材料分子突出了该协议的合成多功能性。
• Enantioselective Dearomative [3 + 2] Umpolung Annulation of <i>N</i>-Heteroarenes with Alkynes
  作者：Peng Yang、Qiang Wang、Bing-Hui Cui、Xiao-Dong Zhang、Hang Liu、Yue-Yuan Zhang、Jia-Liang Liu、Wen-Yu Huang、Ren-Xiao Liang、Yi-Xia Jia

  DOI：10.1021/jacs.1c11092

  日期：2022.1.26

  Enantioselective [3 + 2] annulation of N-heteroarenes with alkynes has been developed via a cobalt-catalyzed dearomative umpolung strategy in the presence of chiral ligand and reducing reagent. A variety of electron-deficient N-heteroarenes, including quinolines, isoquinolines, quinoxaline, and pyridines, and internal or terminal alkynes are employed in this reaction, showing a broad substrate scope

  在手性配体和还原剂存在下，通过钴催化的脱芳环化策略开发了N-杂芳烃与炔烃的对映选择性[3 + 2] 环化。该反应使用了多种缺电子的N-杂芳烃，包括喹啉、异喹啉、喹喔啉和吡啶，以及内部或末端炔烃，显示出广泛的底物范围和良好的官能度耐受性。还开发了用炔烃环化富电子吲哚。该协议提供了对具有出色对映选择性的各种N-螺杂环分子的直接访问（76 个示例，高达 99% ee）。