1,1'-diethyl 3,3'-[(6,7,9,10,17,18,20,21-octahydrodibenzo[b,k][1,4,7,10,13,16]hexaoxacyclooctadecin-2,13-diyl)dimethylene] bis(malonate) | 214076-91-2

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 1,1'-diethyl 3,3'-[(6,7,9,10,17,18,20,21-octahydrodibenzo[b,k][1,4,7,10,13,16]hexaoxacyclooctadecin-2,13-diyl)dimethylene] bis(malonate)
• 英文别名: 3-O-[[24-[(3-ethoxy-3-oxopropanoyl)oxymethyl]-2,5,8,15,18,21-hexaoxatricyclo[20.4.0.09,14]hexacosa-1(22),9(14),10,12,23,25-hexaen-11-yl]methyl] 1-O-ethyl propanedioate
• CAS: 214076-91-2
• 化学式: C₃₂H₄₀O₁₄
• 分子量: 648.661
• InChiKey: WRUOTYKSVPRLGD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  46
• 可旋转键数：
  14
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  161
• 氢给体数：
  0
• 氢受体数：
  14

反应信息

• 作为反应物：
  描述：

  1,1'-diethyl 3,3'-[(6,7,9,10,17,18,20,21-octahydrodibenzo[b,k][1,4,7,10,13,16]hexaoxacyclooctadecin-2,13-diyl)dimethylene] bis(malonate) 、 alkaline earth salt of/the/ methylsulfuric acid 在 六氟磷酸钾 、 碘 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 二氯甲烷 、 甲苯 、 乙腈 为溶剂， 反应 6.0h， 以50%的产率得到(+/-)-out,out-61,62-diethyl 61,62-[(6,7,9,10,17,18,20,21-octahydrodibenzo[b,k][1,4,7,10,13,16]hexaoxacyclooctadecin-2,13-diyl)dimethylene] 1,2:55,60-bismethano[60]fullerene-61,61,62,62-tetracarboxylate
  参考文献：
  名称：

  Cyclophane-Type Fullerene-dibenzo[18]crown-6 Conjugates withtrans-1,trans-2, andtrans-3 Addition Patterns: Regioselective Templated Synthesis, X-Ray Crystal Structure, Ionophoric Properties, and Cation-Complexation-Dependent Redox Behavior

  摘要：

  The fullerene-crown ether conjugates (+/-)-1 to (+/-)-3 with trans-1 ((+/-)-1), trans-2 ((+/-)-2),and trans-3 ((+/-)-3) addition patterns on the C-sphere were prepared by Bingel macrocyclization. The trans-1 derivative (+/-)-1 was obtained in 30% yield, together with a small amount of (+/-)-2 by cyclization of the dibenzo[18]crown-6(DB18C6)-tethered bis-malonate 4 with C-60 (Scheme 1). When the crown-ether tether was further rigidified by K+-ion complexation, the yield and selectivity were greatly enhanced, and (+/-)-1 was obtained as the only regioisomer in 50% yield. The macrocyclization, starting from a mixture of tethered bis-malonates with anti (4) and syn (10) bisfunctionalized DB18C6 moieties, afforded the trans-1 ((+/-)-1, 15%), trans-2 ((+/-)-2, 1.5%), and trans-3 ((+/-)-3, 20%) isomers (Scheme 2). Variable-temperature H-1-NMR (VT-NMR) studies showed that the DB18C6 moiety in C-2-symmetrical (+/-)-1 cannot rotate around the two arms fixing it to the C-sphere, even at 393 K. The planar chirality of (+/-)-1 was confirmed in H-1-NMR experiments using the potassium salts of (S)-1,1'-binaphthalene-2,2'-diyl phosphate ((+/-)-(S)-19) or (+)-(1S)-camphor-10-sulfonic acid ((+)-20) as chiral shift reagents (Fig. 1). The DB18C6 tether in (+/-)-1 is a true covalent template: it is readily removed by hydrolysis or transesterification, which opens up new perspectives for molecular scaffolding using trans-1 fullerene derivatives. Characterization of the products 11 (Scheme 3) and 18 (Scheme 4) obtained by tether removal unambiguously confirmed the trans-1 addition pattern and the out-out geometry of (+/-)-1. VT-NMR Studies established that (+/-)-2 is a C-2-symmetrical out-out trans-2 and (+/-)-3 a C-1-symmetrical in-out trans-3 isomer. Upon changing from (+/-)-1 to (+/-)-3, the distance between the DB18C6 moiety and the fullerene surface increases and. correspondingly, rotation of the ionophore becomes increasingly facile. The ionophoric properties of (+/-)-1 were investigated with an ion-selective electrode membrane (Fig. 2 and Table 2), and K+ was found to form the most stable complex among the alkali-metal ions. The complex between (+/-)-1 and KPF6 was characterized by X-ray crystal-structure analysis (Figs. 3 and 4), which confirmed the close tangential orientation of the ionophore atop the fullerene surface. Addition of KPF6 to a solution of (+/-)-1 resulted in a lar-ge anodic shift (90 mV) of the first fullerene-centered reduction process, which is attributed to the electrostatic effect of the K+ ion bound in close proximity to the C-sphere (Fig. 5). Smaller anodic shifts were measured for the KPF6 complexes of (+/-)-2 (50 mV) and (+/-)-3 (40 mV), in which the distance between ionophore and fullerene surface is increased (Table 3). The effects of different alkali- and alkaline-earth-metal ion salts on the redox properties of (+/-)-1 were investigated (Table 4). These are the first-ever observed effects of cation complexation on the redox properties of the C-sphere in fullerene-crown ether conjugates.

  DOI：

  10.1002/(sici)1522-2675(19991006)82:10<1572::aid-hlca1572>3.0.co;2-b
• 作为产物：
  描述：

  二苯并-18-冠醚-6 在 吡啶 、 sodium tetrahydroborate 、 三氟乙酸 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 26.0h， 生成 1,1'-diethyl 3,3'-[(6,7,9,10,17,18,20,21-octahydrodibenzo[b,k][1,4,7,10,13,16]hexaoxacyclooctadecin-2,13-diyl)dimethylene] bis(malonate)
  参考文献：
  名称：

  冠醚系链指导的反式-1富勒烯双加合物的区域选择性合成：碱金属阳离子调节的富勒烯冠醚共轭物的氧化还原特性。

  摘要：

  用含有新型二苯并[18]冠-6系链的双丙二酸酯对C 60进行区域选择性Bingel宏环化，可广泛地利用反式1富勒烯双加合物，例如（±）-1。钾离子与（±）-1的络合对碳球的氧化还原特性有显着影响，这是由于富勒烯表面与冠醚键合阳离子紧密接近的结果，这是通过双桥作用实现的。

  DOI：

  10.1002/(sici)1521-3773(19980817)37:15<2118::aid-anie2118>3.0.co;2-9

文献信息

• Supramolecular Fullerene Chemistry: A Comprehensive Study of Cyclophane-Type Mono- and Bis-Crown Ether Conjugates of C70
  作者：Maurice J. van Eis、Paul Seiler、Liya A. Muslinkina、Martin Badertscher、Ernö Pretsch、François Diederich、Robert J. Alvarado、Luis Echegoyen、Ignacio Pérez Núñez

  DOI：10.1002/1522-2675(200207)85:7<2009::aid-hlca2009>3.0.co;2-g

  日期：2002.7

  tetrakis-adducts of C70, featuring two covalently attached crown ethers, form stable 1 : 1 and 1 : 2 host-guest complexes (Table 2). Comparative studies showed that the conformation of the DB18C6 ionophore imposed by the macrocyclic bridging to the fullerene is not particularly favorable for strong association. Reference compound (±)-22 (Scheme 4), in which the DB18C6 moiety is attached to the C70 sphere by

  C70 的共价模板化双功能化，使用由抗二取代二苯并 [18]crown-6 (DB18C6) 醚连接的双丙二酸 5，以完全区域特异性进行并提供两个非对映异构体对的对映体 C70 冠醚缀合物，（± )-7a 和 (±)-7b，具有在顺序变换中不受欢迎的五点钟双加法模式（方案 1）。通过 X 射线晶体结构分析揭示了 (±)-7a 的身份（图 6）。使用含有顺二取代 DB18C6 系链的双丙二酸酯 6，通过双宾格尔环丙烷化的大环化反应的区域选择性完全改变，在大约 1:1 的比例分别具有十二 (16) 和两点 ((±)-15) 加法模式（方案 3）。十二点钟双加合物 16 的 X 射线晶体结构分析表明，在冠醚腔中包含一个 H2O 分子（图 7 和图 8）。两个连续的 Bingel 大环化，首先是抗 DB18C6-tethered (5)，然后是 syn-DB18C6-tethered (6) 双丙
• First tether-directed regioselective bis-functionalisation of C70: effects of cation complexation on the redox properties of diastereoisomeric fullerene crown ether conjugates
  作者：Maurice J. van Eis、Paul Seiler、François Diederich、Robert J. Alvarado、Luis Echegoyen

  DOI：10.1039/b006066f

  日期：——

  The covalently templated bis-functionalisation of C70, employing a dibenzo-18-crown-6 tether, proceeds with complete regiospecificity and provides a bis-addition pattern which is disfavoured in sequential transformations.

  C70 的共价模板化双功能化，使用 dibenzo-18-crown-6 系链，以完全区域特异性进行，并提供在连续转化中不受欢迎的双加成模式。