2-(2-溴苯基)环氧乙烷 | 71636-51-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 2-(2-溴苯基)环氧乙烷
• 中文别名: 2-溴苯基环氧乙烷
• 英文名称: 2-(2-bromophenyl)oxirane
• 英文别名: o-bromo-styrene oxide
• CAS: 71636-51-6
• 化学式: C₈H₇BrO
• mdl: MFCD09729148
• 分子量: 199.047
• InChiKey: ZHYZZBGVWDYSEW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  10
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  12.5
• 氢给体数：
  0
• 氢受体数：
  1

安全信息

• 储存条件：
  室温

反应信息

• 作为反应物：
  描述：

  2-(2-溴苯基)环氧乙烷 在 sodium periodate 作用下， 以 水 、 乙腈 为溶剂， 以71%的产率得到邻溴苯甲醛
  参考文献：
  名称：

  A simple procedure for C–C bond cleavage of aromatic and aliphatic epoxides with aqueous sodium periodate under ambient conditions

  摘要：

  The sodium periodate mediated oxidative cleavage of the C-C bond of 12 epoxides is reported with yields of the corresponding carbonyl compounds in up to 91%. This is a two-step reaction that proceeds through a rate-limiting epoxide opening to a vicinal diol that is cleaved in situ to the corresponding carbonyl compound. This method serves as a chemoselective alternative to ozonolysis. (D 2008 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2008.02.142
• 作为产物：
  描述：

  2-Bromo-2-(2-bromophenyl)ethanol 在 sodium hydroxide 作用下， 反应 6.0h， 生成 2-(2-溴苯基)环氧乙烷
  参考文献：
  名称：

  使用压电材料从吲哚嗪和环氧化物机械化学合成 1,2-二酮吲哚嗪衍生物

  摘要：

  已经开发了一种简单有效的机械化学诱导方法来合成 1,2-二酮吲哚嗪衍生物。BaTiO 3用作该转变中的压电材料。该方法不使用溶剂，实验操作简单，潜力可扩展，转化效率高，具有吸引力和实用性。

  DOI：

  10.1021/acs.orglett.1c02575

文献信息

• Engineered P450pyr monooxygenase for asymmetric epoxidation of alkenes with unique and high enantioselectivity
  作者：Aitao Li、Ji Liu、Son Q. Pham、Zhi Li

  DOI：10.1039/c3cc46675b

  日期：——

  A triple mutant of P450pyr monooxygenase (P450pyrTM) catalysed the epoxidation of several para-substituted styrenes as the first enzyme showing high (R)-enantioselectivity and high conversion, demonstrated a broad substrate range, and showed high enantioselectivity for the epoxidation of an unconjugated 1,1-disubstituted alkene, 2-methyl-3-phenyl-1-propene, and a cyclic alkene, N-phenoxycarbonyl-1,2,5,6-tetrahydropyridine, respectively.

  P450pyr单加氧酶的三重突变体（P450pyrTM）作为首个展现出高（R）对映选择性和高转化率的酶，催化了几种对位取代苯乙烯的环氧化反应，其底物范围广泛，并对非共轭的1,1-二取代烯烃——2-甲基-3-苯基-1-丙烯，以及环烯烃——N-苯氧羰基-1,2,5,6-四氢吡啶的环氧化反应表现出高对映选择性。
• Arylruthenium(III) Porphyrin-Catalyzed C–H Oxidation and Epoxidation at Room Temperature and [Ru^V(Por)(O)(Ph)] Intermediate by Spectroscopic Analysis and Density Functional Theory Calculations
  作者：Ka-Pan Shing、Bei Cao、Yungen Liu、Hung Kay Lee、Ming-De Li、David Lee Phillips、Xiao-Yong Chang、Chi-Ming Che

  DOI：10.1021/jacs.8b04470

  日期：2018.6.6

  metal catalysts for efficient oxidation of hydrocarbons and identification of the reactive intermediates in the oxidation catalysis are long-standing challenges. In the rapid hydrocarbon oxidation catalyzed by ruthenium(IV) and -(III) porphyrins, the putative Ru(V)-oxo intermediates remain elusive. Herein we report that arylruthenium(III) porphyrins are highly active catalysts for hydrocarbon oxidation

  开发用于烃类有效氧化的高活性和选择性金属催化剂以及氧化催化中反应中间体的鉴定是长期存在的挑战。在钌 (IV) 和 -(III) 卟啉催化的快速烃氧化中，推定的 Ru(V)-氧代中间体仍然难以捉摸。在此我们报告芳基钌 (III) 卟啉是烃氧化的高活性催化剂。使用催化剂 [RuIII(TDCPP)(Ph)(OEt2)] (H2TDCPP = 5,10,15,20-四(2,6-二氯苯基)卟啉)，在氧化剂 m-CPBA 下氧化各种碳氢化合物的 CH 键室温下，醇/酮在 1 小时内的收率高达 99%；使用 [ nBu4N]IO4 作为温和的替代氧化剂避免了 CH 氧化中环酮形成内酯，催化环氧化反应在 5 分钟内完成，收率高达 99%，选择性高（无醛类副产物）。UV-vis、电喷雾电离质谱、共振拉曼、电子顺磁共振、动力学测量和密度泛函理论计算为 Ru(V)-氧代中间体 [RuV(TDCPP)(O)(Ph)]
• Allylation of Aldehydes, Aldimines and Ring Opening of Terminal Aromatic Epoxides by Scandium Triflate using Polyethylene Glycol (PEG) as an ­Efficient Recyclable Medium
  作者：Boyapati M. Choudary、Karangula Jyothi、Sateesh Madhi、Mannepalli L. Kantam

  DOI：10.1055/s-2003-44977

  日期：——

  Scandium triflate catalyzed allylation of a variety of aldehydes and aldimines using polyethylene glycol (PEG) as a recyclable reaction medium proceeds smoothly and affords corresponding homoallylic alcohols and amines in good yields. ­Furthermore this catalyst catalyzes total regioselective ring opening of terminal 1,2-epoxides to bishomoallylic alcohols in good yields. The PEG-scandium triflate catalyst system can be reused for a ­number of cycles without significant loss of activity.

  三氟甲磺酸钪催化多种醛和亚胺的烯丙基化反应，使用聚乙二醇（PEG）作为可循环的反应介质，过程顺利并高产率地得到相应的高烯丙醇和胺。此外，该催化剂还能高产率地催化末端1,2-环氧化物完全区域选择性的开环反应，生成双高烯丙醇。PEG-三氟甲磺酸钪催化体系在多次循环使用中活性无明显损失。
• Enantioselective hydrolysis of various substituted styrene oxides with Aspergillus Niger CGMCC 0496Electronic supplementary information (ESI) available: experimental details. See http://www.rsc.org/suppdata/ob/b3/b312469j/
  作者：Hao Jin、Zu-yi Li、Xiao-Wei Dong

  DOI：10.1039/b312469j

  日期：——

  Enantioselective biohydrolysis of various substituted styrene oxides using whole fungus cells of Aspergillus nigerCGMCC 0496 are described. The results show not only para- but also some ortho- substituted styrene oxides can achieve high enantioselectivity during the hydrolysis.

  描述了使用黑曲霉CGMCC 0496的整个真菌细胞对各种取代的苯乙烯氧化物的对映选择性生物水解。结果表明，在水解过程中，不仅对位而且某些邻位取代的苯乙烯氧化物都可以实现高对映选择性。
• C- ARYL GLYCOSID DERIVATIVES, PHARMACEUTICAL COMPOSITION, PREPARATION PROCESS AND USES THEREOF
  申请人：SHANGHAI DE NOVO PHARMATECH CO. LTD.

  公开号：US20170037038A1

  公开（公告）日：2017-02-09

  This invention relates to a kind of C-aryl glycoside derivatives, its pharmaceutical compositions, preparation methods, and uses thereof. The preparation method comprises: method 1: in a solvent, deprotecting the acetyl protecting groups of compound 1-f in the presence of a base; method 2: 1) compound 2-g reacts with via Mitsunobu reaction; 2) deprotecting the acetyl protecting groups of compound 2-f obtained from step 1; method 3: 1) compound 2-g reacts with via nucleophilic substitution reaction; 2) deprotecting the acetyl protecting groups of compound 3-f obtained from step 1. The pharmaceutical composition comprises a kind of C-aryl glycoside derivatives; it's pharmaceutically acceptable salts and/or prodrugs thereof and excipient thereof. This invention further relates to a kind of C-aryl glycoside derivatives, it's pharmaceutically acceptable salts or pharmaceutical compositions thereof for the use in preparation of a SGLT inhibitor. The C-aryl glycoside derivatives of this invention provides a new direction for the study of SGLT inhibitors.

  这项发明涉及一种C-芳基糖苷衍生物，其药物组合物、制备方法及其用途。制备方法包括：方法1：在溶剂中，在碱的存在下去保护化合物1-f的乙酰保护基；方法2：1）化合物2-g通过Mitsunobu反应发生反应；2）去除从步骤1得到的化合物2-f的乙酰保护基；方法3：1）化合物2-g通过亲核取代反应发生反应；2）去除从步骤1得到的化合物3-f的乙酰保护基。药物组合物包括一种C-芳基糖苷衍生物；其药学上可接受的盐和/或前药以及赋形剂。这项发明还涉及一种C-芳基糖苷衍生物，其药学上可接受的盐或其药物组合物，用于制备SGLT抑制剂。这项发明的C-芳基糖苷衍生物为SGLT抑制剂的研究提供了新的方向。