5,5-dibromomethylthiophene-2-carboxylic acid methyl ester | 1001200-44-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 噻吩类
• 英文名称: 5,5-dibromomethylthiophene-2-carboxylic acid methyl ester
• 英文别名: methyl 5-(dibromomethyl)thiophene-2-carboxylate；methyl 5-dibromomethylthiophene-2-carboxylate
• CAS: 1001200-44-7
• 化学式: C₇H₆Br₂O₂S
• 分子量: 313.997
• InChiKey: IVFGUUKMGRFHMO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  12
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  54.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  5,5-dibromomethylthiophene-2-carboxylic acid methyl ester 在 吡啶 、 水 作用下， 反应 1.17h， 以76%的产率得到5-醛基噻吩-2-甲酸甲酯
  参考文献：
  名称：

  A versatile method for the hydrolysis of gem-dibromomethylarenes bearing carboxylate or boronate group into aldehydes

  摘要：

  Hydrolysis of geni-dibromomethylarenes bearing carboxylate or boronate group to corresponding aldehydes without affecting the ester group was successfully accomplished in high yields by subjecting them to refluxing pyridine. Both aromatic and heteroaromatic substrates gave the corresponding aldehydes in good yields. This method was efficiently adapted for the large scale synthesis of 2d and 2f. (C) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2007.11.030
• 作为产物：
  描述：

  5-甲基噻吩-2-羧酸甲酯 在 N-溴代丁二酰亚胺(NBS) 、 过氧化苯甲酰 作用下， 以 四氯化碳 为溶剂， 以82%的产率得到5,5-dibromomethylthiophene-2-carboxylic acid methyl ester
  参考文献：
  名称：

  gem-Dibromomethylarenes:  A Convenient Substitute for Noncommercial Aldehydes in the Knoevenagel−Doebner Reaction for the Synthesis of α,β-Unsaturated Carboxylic Acids

  摘要：

  [Graphics]A facile synthesis of alpha,beta-unsaturated carboxylic acids from gem-dibromomethylarenes is described. gem-Dibromomethylarenes are employed for the first time in the Knoevenagel-Doebner reaction as aldehyde equivalents for the efficient synthesis of alpha,beta-unsaturated carboxylic acids.

  DOI：

  10.1021/jo701888m

文献信息

• gem-Dibromomethyl Aromatics: Efficient Aldehyde Equivalents in the Knoevenagel-Doebner Reaction
  作者：John Augustine、Yanjerappa Naik、Subba Poojari、Nagaraja Chowdappa、Bailur Sherigara、Kummara Areppa

  DOI：10.1055/s-0029-1216849

  日期：2009.7

  efficient synthesis of cinnamic esters is described. This reaction provides cinnamic esters in a single step from gem-dibromomethyl aromatics, which otherwise require the hydrolytic conversion of gem-dibromides into aldehydes, and demonstrates the use of an alternative reagent for noncommercial and expensive aldehydes. Further, the reaction of gem-dibromomethyl aromatics with malonic acid and di-tert-butyl

  描述了有效合成肉桂酸酯的Knoevenagel-Doebner反应的有价值的变化。该反应在单个步骤中由宝石-二溴甲基芳族化合物提供肉桂酸酯，否则其需要将宝石-二溴化物水解转化为醛，并证明了用于非商业和昂贵醛的替代试剂的使用。此外，还描述了宝石-二溴甲基芳族化合物与丙二酸和二碳酸二叔丁酯的反应，用于一锅合成肉桂酸叔丁基酯。 Knoevenagel-Doebner反应-肉桂酸叔丁酯-宝石-二溴甲基芳族化合物-二碳酸二叔丁酯-水解
• gem-Dibromomethylarenes as Aldehyde Surrogates in the Pictet-Spengler Synthesis of Tetrahydroisoquinolines and Isoindoloisoquinolones
  作者：John Augustine、Nagaraja Chowdappa、Bailur Sherigara、Kummara Areppa、Ashis Mandal

  DOI：10.1055/s-0030-1258137

  日期：2010.9

  A new variant of the Pictet-Spengler reaction has been developed using gem-dibromomethylarenes as aldehyde surrogates to afford a variety of tetrahydroisoquinoline and isoindoloisoquinolone ring systems in good yields. These systems comprise important motifs in naturally occurring bioactive substances.

  使用偕二溴甲基芳烃作为醛替代物开发了一种新的 Pictet-Spengler 反应变体，以良好的产率提供各种四氢异喹啉和异吲哚并异喹诺酮环系统。这些系统包含天然存在的生物活性物质中的重要基序。
• Thiophene integrin inhibitors
  申请人：BioChem Pharma Inc.

  公开号：US06274620B1

  公开（公告）日：2001-08-14

  The present invention comprises compounds that are effective inhibitors of integrins, particularly &agr;v&bgr;3 and &agr;v&bgr;5 integrins. Particularly, the compounds are of formula I and pharmaceutically acceptable salts thereof wherein X,Y1 W, R1 to R5, A and B are defined according to the disclosure herein.

  本发明涉及一种有效抑制整合素的化合物，特别是αvβ3和αvβ5整合素。特别地，该化合物的公式为I，其药学上可接受的盐包括其中，其中X，Y1，W，R1至R5，A和B根据本文所述定义。
• Identification of Potent and Selective Small-Molecule Inhibitors of Caspase-3 through the Use of Extended Tethering and Structure-Based Drug Design
  作者：Ingrid C. Choong、Willard Lew、Dennis Lee、Phuongly Pham、Matthew T. Burdett、Joni W. Lam、Christian Wiesmann、Tinh N. Luong、Bruce Fahr、Warren L. DeLano、Robert S. McDowell、Darin A. Allen、Daniel A. Erlanson、Eric M. Gordon、Tom O'Brien

  DOI：10.1021/jm020230j

  日期：2002.11.1

  The design, synthesis, and in vitro activities of a series of potent and selective small-molecule inhibitors of caspase-3 are described. From extended tethering, a salicylic acid fragment was identified as having binding affinity for the S-4 pocket of caspase-3. X-ray crystallography and molecular modeling of the initial tethering hit resulted in the synthesis of 4, which reversibly inhibited caspase-3 with a K-i = 40 nM. Further optimization led to the identification of a series of potent and selective inhibitors with K-i values in the 20-50 nM range. One of the most potent compounds in this series, 66b, inhibited caspase-3 with a K-i = 20 nM and selectivity of 8-500-fold for caspase-3 vs a panel of seven caspases (1, 2, and 4-8). A high-resolution X-ray cocrystal structure of 4 and 66b supports the predicted binding modes of our compounds with caspase-3.
• <i>gem</i>-Dibromomethylarenes:  A Convenient Substitute for Noncommercial Aldehydes in the Knoevenagel−Doebner Reaction for the Synthesis of α<i>,</i>β-Unsaturated Carboxylic Acids
  作者：John Kallikat Augustine、Yanjerappa Arthoba Naik、Ashis Baran Mandal、Nagaraja Chowdappa、Vinuthan B. Praveen

  DOI：10.1021/jo701888m

  日期：2007.12.1

  [Graphics]A facile synthesis of alpha,beta-unsaturated carboxylic acids from gem-dibromomethylarenes is described. gem-Dibromomethylarenes are employed for the first time in the Knoevenagel-Doebner reaction as aldehyde equivalents for the efficient synthesis of alpha,beta-unsaturated carboxylic acids.