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rac-BINOL-Ti(OtBu)2 | 197157-91-8

中文名称
——
中文别名
——
英文名称
rac-BINOL-Ti(OtBu)2
英文别名
——
rac-BINOL-Ti(OtBu)2化学式
CAS
197157-91-8;261161-35-7
化学式
C28H30O4Ti
mdl
——
分子量
478.424
InChiKey
RJPQPVGNORXZJR-UHFFFAOYSA-L
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    None
  • 重原子数:
    None
  • 可旋转键数:
    None
  • 环数:
    None
  • sp3杂化的碳原子比例:
    None
  • 拓扑面积:
    None
  • 氢给体数:
    None
  • 氢受体数:
    None

反应信息

点击查看最新优质反应信息

文献信息

  • Chiroptical Switching Polyguanidine Synthesized by Helix-Sense-Selective Polymerization Using [(<i>R</i>)-3,3‘-Dibromo-2,2‘-binaphthoxy](di-<i>tert</i>-butoxy)titanium(IV) Catalyst
    作者:Hong-Zhi Tang、Paul D. Boyle、Bruce M. Novak
    DOI:10.1021/ja0453533
    日期:2005.2.1
    A series of chiral binaphthyl titanium alkoxide complexes were synthesized. Among them, chiral titanium complex [(R)-3,3'-dibromo-2,2'-binaphthoxy](di-tert-butoxy)titanium(IV) (R-3) exists as a crystallographic C2 dimer in the solid state but a monomer in solution at room temperature. Application of R-3 in the helix-sense-selective polymerization of achiral carbodiimide, N-(1-anthryl)-N'-octadecylcarbodiimide
    合成了一系列手性联醇盐配合物。其中,手性络合物[(R)-3,3'-dibromo-2,2'-binaphthoxy](di-tert-butoxy)(IV) (R-3)在固体中以结晶C2二聚体形式存在状态,但在室温下溶液中的单体。R-3 在非手性碳二亚胺 N-(1-基)-N'-十八烷基碳二亚胺 (1) 的螺旋义选择性聚合中的应用,产生了定义明确的区域规整、立体规整聚 [N-(1-基) -N'-十八烷](poly-1b),聚合物分散指数相对较窄,为 2.7。poly-1b 在 +80 摄氏度的甲苯中完全外消旋需要超过 100 小时。有趣的是,poly-1b 被发现在 +38.5 摄氏度的甲苯中经历快速可逆手性转换。此外,在室温下,poly-1b 在甲苯中显示出正符号 Cotton 效应,但在 THF 和氯仿中分别显示负符号。手性转换发生在混合甲苯/THF 溶剂中甲苯含量为 90%
  • Modification of alkoxo ligands of BINOL–Ti ladder: Isolation and X-ray crystallographic analysis
    作者:Koichi Mikami、Yousuke Matsumoto、Ling Xu
    DOI:10.1016/j.ica.2005.11.052
    日期:2006.10
    The stable binaphthol-titanium ladder complexes have been successfully prepared by using bulky alkoxo ligands. From the secondary OR ligand (cyclohexyloxo, 2,4-dimethyl-3-pentyloxo or 2-adamantyloxo) and terially OR ligand (tert-butyloxo, 1-adamantyloxo), partial hydrolysis proceeded to give the mu(3)-oxo titanium complexes. The use of [Ti(BINOLato)(OEt)(2)](n), made it possible to prepare the Ti(BINOLato)(OR)2 complexes using alcohols (ROH) of high boiling point (R = cyclohexyl, 2-adamantyl, 1-adamantyl). X-ray analyses of [(R)-1, 1'-bi-2-naphtholato]bis(O-2,4-dimethyl-3-pentyloxo)titanium and [(R)-3,3'-dimethyl-naphtholato]bis(2-adamant- yloxo)titanium showed a good agreement with the estimated ladder complexes. The catalytic activity of BINOL-Ti catalyst analogues, obtained by partial hydrolysis of Ti(BINOLato)(OR)(2) with wet MS 4A was studied in asymmetric glyoxylate-ene reaction by two methods. Moderate to good chemical yields and enantioselectivities were obtained. (c) 2005 Elsevier B.V. All rights reserved.
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