2-benzyloxybenzophenone | 93254-81-0

• 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: 2-benzyloxybenzophenone
• 英文别名: o-(benzyloxy)benzophenone；[2-(Benzyloxy)phenyl](phenyl)methanone；phenyl-(2-phenylmethoxyphenyl)methanone
• CAS: 93254-81-0
• 化学式: C₂₀H₁₆O₂
• 分子量: 288.346
• InChiKey: SIPDUQYOKFRSKR-UHFFFAOYSA-N

物化性质

• 熔点：
  65-67 °C
• 沸点：
  471.7±28.0 °C(Predicted)
• 密度：
  1.143±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.7
• 重原子数：
  22
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.05
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-benzyloxybenzophenone 在 manganese(IV) oxide 、 一水合肼 、 溶剂黄146 作用下， 以 乙醇 、 二氯甲烷 为溶剂， 反应 10.5h， 生成 2-benzyloxyphenyl(phenyl)diazomethane
  参考文献：
  名称：

  Catalytic asymmetric synthesis of (−)-E-δ-viniferin via an intramolecular C–H insertion of diaryldiazomethane using Rh2(S-TFPTTL)4

  摘要：

  An asymmetric synthesis of (-)-E-delta-viniferin, a trans-resveratrol dimer natural product containing a dihydrobenzofuran ring, has been achieved by exploiting a Rh(II)-catalyzed intramolecular C-H insertion reaction of a diaryldiazomethane derivative as a key step. The C-H insertion under catalysis by dirhodium(II) tetrakis[N-tetrafluorophthaloyl-(S)-tert-leucinate], Rh-2(S-TFPTTL)(4), provided the 2,3-diaryl-2,3-dihydrobenzofuran core structure with perfect cis diastereoselectivity and 96% ee. (c) 2015 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2015.05.072
• 作为产物：
  描述：

  2-甲氧基苯甲酮 在 氢溴酸 、 溶剂黄146 作用下， 生成 2-benzyloxybenzophenone
  参考文献：
  名称：

  Bonnard; Meyer-Oulif, Bulletin de la Societe Chimique de France, 1931, vol. <4>49, p. 1303,1305,1306

  摘要：

  DOI：

文献信息

• Ruthenium Porphyrin Catalyzed Intramolecular Carbenoid C−H Insertion. Stereoselective Synthesis of Cis-Disubstituted Oxygen and Nitrogen Heterocycles
  作者：Wai-Hung Cheung、Shi-Long Zheng、Wing-Yiu Yu、Guo-Chuan Zhou、Chi-Ming Che

  DOI：10.1021/ol034806q

  日期：2003.7.1

  [reaction: see text] A ruthenium porphyrin-catalyzed stereoselective intramolecular carbenoid C[bond]H insertion is described. Using [Ru(II)(TTP)(CO)] as catalyst, aryl tosylhydrazones are converted to 2,3-dihydrobenzofurans, 2,3-dihydroindoles, and beta-lactams in good yields and remarkable cis selectivity (up to 99%). Enantioselective synthesis of 2,3-dihydrobenzofurans is also achieved with [Ru(II)(D(4)-Por*)(CO)]

  [反应：见正文]描述了钌卟啉催化的立体选择性分子内类胡萝卜素C H键插入。使用[Ru（II）（TTP）（CO）]作为催化剂，芳基甲苯磺酰hydr以良好的收率和显着的顺式选择性（高达99％）转化为2,3-二氢苯并呋喃，2,3-二氢吲哚和β-内酰胺。 。以[Ru（II）（D（4）-Por *）（CO）]为催化剂也可完成2,3-二氢苯并呋喃的对映选择性合成，且ee最高可达96％。
• Synthesis of Benzodihydrofurans by Asymmetric C−H Insertion Reactions of Donor/Donor Rhodium Carbenes
  作者：Kellan N. Lamb、Richard A. Squitieri、Srinivasa R. Chintala、Ada J. Kwong、Edward I. Balmond、Cristian Soldi、Olga Dmitrenko、Marta Castiñeira Reis、Ryan Chung、J. Bennett Addison、James C. Fettinger、Jason E. Hein、Dean J. Tantillo、Joseph M. Fox、Jared T. Shaw

  DOI：10.1002/chem.201701630

  日期：2017.9.4

  screening of achiral catalysts demonstrated that sterically encumbered catalysts are optimal for diastereoselective reactions. Although efficient insertion into allylic and propargylic C−H bonds is observed, competing dipolar cycloaddition processes are noted for some substrates. The full substrate scope of this useful method of benzodihydrofuran synthesis, mechanisms of side reactions, and computational

  带有两个给电子基团的金属卡宾称为“供体/供体”卡宾，与醚底物进行非对映和对映选择性的铑催化的CH插入反应，形成苯并二氢呋喃。与带有连接的吸电子基团的金属碳烯的反应不同，亲电子性的减弱使这些反应可以在路易斯碱性溶剂（例如乙腈）中和在水的存在下进行。使用温和的化学选择性氧化剂（MnO 2）。尽管此序列通常可以在一个锅中执行，但控制实验已阐明了为什么“两锅”过程通常更有效。对非手性催化剂的彻底筛选表明，空间受限的催化剂是非对映选择性反应的最佳选择。尽管观察到有效插入烯丙基和炔丙基CH键中，但某些底物的竞争偶极环加成过程仍然存在。描述了这种有用的苯并二氢呋喃合成方法的全部底物范围，副反应机理以及对立体选择性起源的计算支持。
• Enantioselective Intramolecular C–H Insertion Reactions of Donor–Donor Metal Carbenoids
  作者：Cristian Soldi、Kellan N. Lamb、Richard A. Squitieri、Marcos González-López、Michael J. Di Maso、Jared T. Shaw

  DOI：10.1021/ja508586t

  日期：2014.10.29

  asymmetric insertion reactions of donor–donor carbenoids, i.e., those with no pendant electron-withdrawing groups, are reported. This process enables the synthesis of densely substituted benzodihydrofurans with high levels of enantio- and diastereoselectivity. Preliminary results show similar efficiency in the preparation of indanes. This new method is used in the first enantioselective synthesis of an

  报告了供体-供体类卡宾的第一个不对称插入反应，即那些没有吸电子侧基的反应。该过程能够合成具有高水平对映选择性和非对映选择性的密集取代的苯并二氢呋喃。初步结果显示制备茚满的效率相似。这种新方法用于首次对映选择性合成低聚白藜芦醇天然产物（E-δ-viniferin）。
• [EN] 4-(2,4-BIS(2-HYDROXYPHENYL)-1H-IMIDAZOL-1-YL)BENZOIC ACID DERIVATIVES AS NOVEL IRON CHELATORS<br/>[FR] DÉRIVÉS D'ACIDE 4-(2,4-BIS (2-HYDROXYPHÉNYL)-1H-IMIDAZOL-1-YL) BENZOÏQUE EN TANT QUE NOUVEAUX CHÉLATEURS DU FER
  申请人：VIFOR INT AG

  公开号：WO2020201305A1

  公开（公告）日：2020-10-08

  The invention relates to novel compounds of the general formula (I) pharmaceutical compositions comprising them and the use thereof as medicaments, in particular for the use as iron chelators, more particularly for the use in the prophylaxis and/or treatment of diseases related to or caused by excess or increased iron levels, increased iron absorption or iron overload in a mammal, such as in particular thalassemia, hemochromatosis and ineffective erythropoiesis, or related to or caused by blood transfusions.

  这项发明涉及一般式(I)的新化合物，包括含有它们的药物组合物以及将它们用作药物的用途，特别是用作铁螯合剂的用途，更具体地用于预防和/或治疗与哺乳动物体内铁元素水平过高或增加、铁元素吸收增加或铁元素超载有关或由此引起的疾病，特别是地中海贫血、血色病和无效性红细胞生成障碍，或与输血有关或由输血引起的疾病。
• Photocyclization reactions. Part<b>5</b>. Synthesis of dihydrobenzofuranols using photocyclization of 2-alkoxybenzophenones and ethyl 2-benzoylphenoxyacetates
  作者：Essam Mohamed Sharshira、Satoru Shimada、Mutsuo Okamura、Eietsu Hasegawa、Takaaki Horaguchi

  DOI：10.1002/jhet.5570330641

  日期：1996.11

  Photocyclization reactions were carried out on 2-alkoxybenzophenones 1a-h and ethyl 2-benzoylphenoxyacetates 2a-e in acetonitrile. Irradiation of 1a-h gave dihydrobenzofuranols 4a-h in 68–84% yields. Similarly, irradiation of 2a-e afforded dihydrobenzofuranols 8a-e in 72–75% yields. Ethyl acrylates 9b-c were also produced in 6–8% yields from photoreactions of 2b-c. Substituent effects on cyclization

  对2-烷氧基二苯甲酮1a-h和2-苯甲酰基苯氧基乙酸乙酯2a - e在乙腈中进行光环化反应。辐照1a-h可获得二氢苯并呋喃醇4a-h，产率为68-84％。同样，辐照2a-e可获得二氢苯并呋喃醇8a-e，产率为72-75％。丙烯酸乙酯9b-c也是由2b-c的光反应产生的，产率为6-8％。讨论了取代基对1,5-双自由基中间体环化和反应途径的影响。二苯甲酮是通过光环化制备二氢苯并呋喃醇的有用化合物。