5,11,17,23-tetra-tert-butyl-26,27,28-trihydroxy-25-(2-methylpropyloxy)calix[4]arene | 1254972-85-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: 5,11,17,23-tetra-tert-butyl-26,27,28-trihydroxy-25-(2-methylpropyloxy)calix[4]arene
• 英文别名: 5,11,17,23-Tetratert-butyl-28-(2-methylpropoxy)pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(24),3,5,7(28),9,11,13(27),15(26),16,18,21(25),22-dodecaene-25,26,27-triol
• CAS: 1254972-85-4
• 化学式: C₄₈H₆₄O₄
• 分子量: 705.034
• InChiKey: TWHORPIZGMNDOC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  14.6
• 重原子数：
  52
• 可旋转键数：
  7
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  69.9
• 氢给体数：
  3
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  5,11,17,23-tetra-tert-butyl-25,27-dihydroxy-26,28-bis[(2-methylpropyl)oxy]calix[4]arene 在 titanium(IV) chloride tetrahydrofuran 、 盐酸 、 水 作用下， 以 甲苯 为溶剂， 反应 48.0h， 以57%的产率得到5,11,17,23-tetra-tert-butyl-26,27,28-trihydroxy-25-(2-methylpropyloxy)calix[4]arene
  参考文献：
  名称：

  Easy and Selective Method for the Synthesis of Various Mono-O-functionalized Calix[4]arenes: De-O-functionalization Using TiCl₄

  摘要：

  An efficient and selective method for the monofunctionalization of p-tert-butylcalix[4]arene is described A mono-de-O-functionalization of disubstituted p-tert-butylcalix[4]arenes using titanium tetrachloride was developed to synthesize a series of monosubstituted p-tert-butylcalix[4]arenes with the pendant functions being ethoxycarbonylmethyloxy, 3-ethoxycarbonylpropyloxy, cyanomethyloxy, 3-cyanopropyloxy, 4-bromobutyloxy, 3-hydroxypropyloxy, propyloxy, 2-methylpropyloxy, 3-butynyloxy, and 3-cyanopropyloxy groups The reaction mechanism of the formation of 5,11,17,23-tetra-tert-butyl-26,27,28-trihydroxy-25-(3-ethoxycarbonylpropyloxy) calix[4]arene was studied by H-1 NMR and GC/mass spectroscopy monitoring Reaction of TiCl4 with the disubstituted p-tert-butylcalix[4]arene produced the corresponding dioxocalix[4]arene titanium dichloride complex, which undergoes elimination of ethyl 4-chlorobutyrate, leading to a trioxocalix[4]arene titanium dichloride complex and to monosubstituted calix[4]arene after hydrolysis These two complexes were also synthesized, isolated, and fully characterized

  DOI：

  10.1021/jo101319s

文献信息

• Easy and Selective Method for the Synthesis of Various Mono-<i>O</i>-functionalized Calix[4]arenes: De-<i>O</i>-functionalization Using TiCl₄
  作者：Joackim Bois、Jeff Espinas、Ulrich Darbost、Caroline Felix、Christian Duchamp、Denis Bouchu、Mostafa Taoufik、Isabelle Bonnamour

  DOI：10.1021/jo101319s

  日期：2010.11.19

  An efficient and selective method for the monofunctionalization of p-tert-butylcalix[4]arene is described A mono-de-O-functionalization of disubstituted p-tert-butylcalix[4]arenes using titanium tetrachloride was developed to synthesize a series of monosubstituted p-tert-butylcalix[4]arenes with the pendant functions being ethoxycarbonylmethyloxy, 3-ethoxycarbonylpropyloxy, cyanomethyloxy, 3-cyanopropyloxy, 4-bromobutyloxy, 3-hydroxypropyloxy, propyloxy, 2-methylpropyloxy, 3-butynyloxy, and 3-cyanopropyloxy groups The reaction mechanism of the formation of 5,11,17,23-tetra-tert-butyl-26,27,28-trihydroxy-25-(3-ethoxycarbonylpropyloxy) calix[4]arene was studied by H-1 NMR and GC/mass spectroscopy monitoring Reaction of TiCl4 with the disubstituted p-tert-butylcalix[4]arene produced the corresponding dioxocalix[4]arene titanium dichloride complex, which undergoes elimination of ethyl 4-chlorobutyrate, leading to a trioxocalix[4]arene titanium dichloride complex and to monosubstituted calix[4]arene after hydrolysis These two complexes were also synthesized, isolated, and fully characterized