(4-bromo-3-methoxyphenoxy)(tert-butyl)dimethylsilane | 137396-02-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: (4-bromo-3-methoxyphenoxy)(tert-butyl)dimethylsilane
• 英文别名: (4-bromo-3-methoxyphenoxy)-tert-butyl-dimethylsilane
• CAS: 137396-02-2
• 化学式: C₁₃H₂₁BrO₂Si
• 分子量: 317.298
• InChiKey: ZEUFEQLEXFCKJR-UHFFFAOYSA-N

物化性质

• 沸点：
  301.8±32.0 °C(Predicted)
• 密度：
  1.166±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.84
• 重原子数：
  17
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.54
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (4-bromo-3-methoxyphenoxy)(tert-butyl)dimethylsilane 在 1,1'-双(二苯基膦)二茂铁 、 四(三苯基膦)钯 、 1,1'-双(二苯膦基)二茂铁二氯化钯(II)二氯甲烷复合物 、 potassium acetate 、 碳酸氢钠 、 三乙胺 作用下， 以 1,4-二氧六环 、 二氯甲烷 、 水 为溶剂， 生成 3-methoxy-4-(6-(methyl(2,2,6,6-tetramethylpiperidin-4-yl)amino)pyridazin-3-yl)phenyl trifluoromethanesulfonate
  参考文献：
  名称：

  [EN] 1,4-DISUBSTITUTED PYRIDAZINE ANALOGS AND METHODS FOR TREATING SMN-DEFICIENCY-RELATED CONDITIONS
  [FR] ANALOGUES DE PYRIDAZINE 1,4-DISUBSTITUÉE ET PROCÉDÉS DE TRAITEMENT DE TROUBLES LIÉS À UNE DÉFICIENCE EN SMN

  摘要：

  本发明提供了一种公式(I)的化合物或其药用可接受的盐；一种制造本发明化合物的方法及其治疗用途。本发明进一步提供了一种药物活性剂的组合物和一种药物组合物。

  公开号：

  WO2014028459A1
• 作为产物：
  描述：

  4-bromo-3-hydroxy-phenyl 4-methyl-benzenesulfonate 在 氢氧化钾 、 sodium hydride 作用下， 以 乙醇 、 水 、 丙酮 为溶剂， 反应 21.0h， 生成 (4-bromo-3-methoxyphenoxy)(tert-butyl)dimethylsilane
  参考文献：
  名称：

  Substrate regulation of product distribution in the reactions of arylchromium carbene complexes with alkynes

  摘要：

  The reactions of arylcarbene complexes with alkynes were examined for six of the nine possible substitution patterns for mono- and dioxygenated aryl substituents of the carbene carbon. The product distributions were found to be highly dependent on a number of factors, including solvent, temperature, concentration of alkyne, and the nature of the aryl substituent. The product distributions were determined in nearly all cases for phenol and indene products and in some cases for furans, cyclobutenones, and cyclopentenediones, which were minor products in these reactions. The product distribution for the reaction of each arylcarbene complex was determined as a function of both temperature and alkyne concentration, since the combined product distribution profiles provided a much more sensitive measure of the relative influences of the aryl substituents on the reaction outcome. Furthermore, this distribution profile was determined for the reactions with 3-hexyne and I-pentyne for each carbene complex. A series of monosubstituted arylcarbene complexes were examined to identify the effects of oxygen substituents at various positions on the aryl ring. The m-methoxy group has no effect on the product distribution, whereas the o-methoxy group influences the distribution by its ability to chelate to the metal center and the p-methoxy group influences the distribution by its ability to donate electrons by resonance. The product distributions from the reactions of the 2,3-, 2,4-, and 2,5-dimethoxy complexes followed the profile expected from the simple sum of the profiles of the monomethoxyl complexes. In all cases where an effect was observed, higher concentrations of alkyne led to a higher selectivity for phenol over indene products. The dependence of the product distribution on the concentration of the alkyne substrate is suggested to be due to a process in which a second molecule of alkyne coordinates to the metal center and determines the chemical outcome of an intermediate that has covalently incorporated the first alkyne. It is further suggested that the special ability of an alkyne to display this effect is related to the ability of an alkyne to readily switch from a 2 to a 4 e- donor. This phenomenon of substrate regulation of product distribution is termed the allochemical effect, and a mechanistic explanation is developed that features this proposed process and that is refined to accommodate the observed effects of solvent, temperature, chelation, and steric and electronic effects that have been observed for the reaction of carbene complexes and alkynes.

  DOI：

  10.1021/ja00024a040

文献信息

• THIADIAZOLE ANALOGS THEREOF AND METHODS FOR TREATING SMN-DEFICIENCY-RELATED-CONDITIONS
  申请人：AXFORD Jake

  公开号：US20140206661A1

  公开（公告）日：2014-07-24

  The present invention provides a compound of Formula (X) or a pharmaceutically acceptable salt thereof; a method for manufacturing the compounds of the invention, and its therapeutic uses. The present invention further provides a combination of pharmacologically active agents and a pharmaceutical composition.

  本发明提供了一种公式（X）的化合物或其药用盐；一种制造本发明化合物的方法及其治疗用途。本发明进一步提供了一种药物活性剂的组合物和一种药物组合物。
• Synthesis of highly substituted fluorenones via metal-free TBHP-promoted oxidative cyclization of 2-(aminomethyl)biphenyls. Application to the total synthesis of nobilone
  作者：Ilya A P Jourjine、Lukas Zeisel、Jürgen Krauß、Franz Bracher

  DOI：10.3762/bjoc.17.181

  日期：——

  Highly substituted fluorenones are readily prepared in mostly fair to good yields via metal- and additive-free TBHP-promoted cross-dehydrogenative coupling (CDC) of readily accessible N-methyl-2-(aminomethyl)biphenyls and 2-(aminomethyl)biphenyls. This methodology is compatible with numerous functional groups (methoxy, cyano, nitro, chloro, and SEM and TBS-protective groups for phenols) and was further

  通过不含金属和添加剂的 TBHP 促进的易于获得的N-甲基-2-(氨甲基)联苯和 2-(氨甲基)联苯的交叉脱氢偶联 (CDC)，可以轻松制备高度取代的芴酮，收率基本上相当到良好。该方法与多种官能团（甲氧基、氰基、硝基、氯以及苯酚的 SEM 和 TBS 保护基团）兼容，并进一步用于天然产物诺比隆的首次全合成。
• Regiodivergent Halogenation of Vinylogous Esters: One-Pot, Transition-Metal-Free Access to Differentiated Haloresorcinols
  作者：Xiaohong Chen、Jenny S. Martinez、Justin T. Mohr

  DOI：10.1021/ol503561x

  日期：2015.1.16

  vinylogous esters and sulfonyl halide halogen donors. Either the 4- or 6-haloresorcinol isomer is accessible from a common precursor. In contrast to conventional oxidants for arene halogenation, mild sulfonyl halides allow broad functional group compatibility. The strategy inherently differentiates the two resorcinol oxygen atoms and enhances the potential for complex molecule synthesis.

  我们报告了一种高效的方法，用于使用容易获得的乙烯基酯和磺酰卤卤素供体进行卤代间苯二酚衍生物的区域发散合成。4-或6-卤代间苯二酚异构体可从常见的前体获得。与用于芳烃卤化的常规氧化剂相比，温和的磺酰卤具有广泛的官能团相容性。该策略固有地区分了两个间苯二酚氧原子，并增强了复杂分子合成的潜力。
• Practical regioselective halogenation of vinylogous esters: synthesis of differentiated mono-haloresorcinols and polyhalogenated resorcinols
  作者：Xiaohong Chen、Xiaoguang Liu、Jenny S. Martinez、Justin T. Mohr

  DOI：10.1016/j.tet.2016.02.006

  日期：2016.6

  A practical and efficient method for the direct, regioselective conversion of vinylogous esters to haloresorcinols is reported. Control of the reaction conditions enables synthesis of either the 4- or 6-haloresorcinol isomers from a common precursor with excellent regiocontrol and high yield. The generality and functional group tolerance of this novel protocol is demonstrated. The utility of this methodology

  报道了一种实用有效的方法，用于将乙烯基酯直接，区域选择性地转化为卤代间苯二酚。控制反应条件使得能够从普通前体中以优异的区域控制和高产率合成4-或6-卤代间苯二酚异构体。证明了这种新颖的协议的普遍性和官能团耐受性。还报道了该方法用于获得多卤代间苯二酚的实用性。这些方法为进一步的合成应用创建了有用的功能化构建基块。
• Shuttling Catalyst: Facilitating C−C Bond Formation via Cross‐Couplings with a Thermoresponsive Polymeric Ligand
  作者：Erfei Wang、Jiawei Zhang、Zhuoran Zhong、Kaixuan Chen、Mao Chen

  DOI：10.1002/ijch.201900143

  日期：2020.3

  A poly(ethylene glycol) (PEG) linked ortho‐MeO‐phenyldicyclohexylphosphine (MeO‐WePhos) ligand has been synthesized to promote Pd‐catalyzed carbon‐carbon bond formation by cross‐couplings including Sonogashira, Heck, Hiyama and Stille reactions, providing corresponding (hetero)aryl substituted alkynes, alkenes and bi(hetero)aryls in good to excellent isolated yields with low Pd loadings. Facilitated

  聚（乙二醇）（PEG）连接邻位合成了MeO-苯基二环己基膦（MeO-WePhos）配体，以通过Sonogashira，Heck，Hiyama和Stille反应等交叉偶联促进Pd催化的碳-碳键形成，提供相应的（杂）芳基取代的炔烃，烯烃和双（低钯负载量的杂芳基化合物具有良好的分离效果。由于聚合单膦配体的临界溶液温度特性较低，因此金属络合物可以在温度调节下迅速在有机相和水相之间穿梭，从而通过简单的相分离即可实现高效的催化剂回收。配体的化学结构由基质辅助激光解吸/电离飞行时间质谱，核磁共振谱和尺寸排阻色谱法测定。值得注意的是 电感耦合等离子体原子发射光谱法测量表明，经过6个循环的催化剂循环实验后，98％的Pd被保留在水相中。鉴于过渡金属催化的共价键形成的深远影响和对可持续化学的日益增长的需求，这项工作提供了另一种方法与聚合物穿梭催化剂进行交叉偶联。