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2-((tert-butyldimethylsilyl)oxy)cyclopentan-1-ol | 1334170-87-4

中文名称
——
中文别名
——
英文名称
2-((tert-butyldimethylsilyl)oxy)cyclopentan-1-ol
英文别名
(1R,2S)-2-(tert-butyldimethylsilyloxy)cyclopentanol;(1R,2S)-2-[tert-butyl(dimethyl)silyl]oxycyclopentan-1-ol
2-((tert-butyldimethylsilyl)oxy)cyclopentan-1-ol化学式
CAS
1334170-87-4
化学式
C11H24O2Si
mdl
——
分子量
216.396
InChiKey
BYCGIGSARPYWEN-ZJUUUORDSA-N
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

物化性质

  • 沸点:
    245.3±33.0 °C(Predicted)
  • 密度:
    0.92±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    2.92
  • 重原子数:
    14
  • 可旋转键数:
    3
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    1.0
  • 拓扑面积:
    29.5
  • 氢给体数:
    1
  • 氢受体数:
    2

反应信息

点击查看最新优质反应信息

文献信息

  • Enantioselective silyl protection of alcohols promoted by a combination of chiral and achiral Lewis basic catalysts
    作者:Nathan Manville、Hekla Alite、Fredrik Haeffner、Amir H. Hoveyda、Marc L. Snapper
    DOI:10.1038/nchem.1708
    日期:2013.9
    Catalytic enantioselective monosilylations of diols and polyols furnish valuable alcohol-containing molecules in high enantiomeric purity. These transformations, however, require high catalyst loadings (20–30 mol%) and long reaction times (2–5 days). Here, we report that a counterintuitive strategy involving the use of an achiral co-catalyst structurally similar to the chiral catalyst provides an effective solution to this problem. A combination of seemingly competitive Lewis basic molecules can function in concert such that one serves as an achiral nucleophilic promoter and the other performs as a chiral Brønsted base. On the addition of 7.5–20 mol% of a commercially available N-heterocycle (5-ethylthiotetrazole), reactions typically proceed within one hour, and deliver the desired products in high yields and enantiomeric ratios. In some instances, there is no reaction in the absence of the achiral base, yet the presence of the achiral co-catalyst gives rise to facile formation of products in high enantiomeric purity. A counter-intuitive strategy that combines a chiral Lewis base catalyst with an achiral Lewis base co-catalyst results in an exceptionally large increase in the facility of catalytic enantioselective silylation of polyols. The catalytic ensemble drives such reactions to completion within a few hours, rather than the usual two–five days, without loss of enantioselectivity.
    二元醇和多元醇的催化对映体选择性单硅烷化反应可以提供高对映体纯度的有价值含醇分子。然而,这些转化需要较高的催化剂负载量(20-30 摩尔%)和较长的反应时间(2-5 天)。在此,我们报告了一种反直觉策略,即使用结构上与手性催化剂相似的非手性辅助催化剂,从而有效地解决了这一问题。看似相互竞争的路易斯碱分子组合可以协同发挥作用,其中一个作为非手性亲核促进剂,另一个作为手性布氏碱。加入7.5â20Â mol%的市售N-杂环(5-乙基噻四唑)后,反应通常会在一小时内进行,并以较高的产率和对映体比率得到所需的产物。在某些情况下,如果没有非手性碱,则不会发生反应,但如果有非手性辅助催化剂存在,则很容易形成对映体纯度很高的产物。将手性路易斯碱催化剂与非手性路易斯碱助催化剂结合在一起的反直觉策略可显著提高多元醇的对映选择性硅烷化催化效率。这种催化组合可在几小时内完成此类反应,而不是通常的两天到五天,而且不会丧失对映选择性。
  • Scaffolding Catalysis: Expanding the Repertoire of Bifunctional Catalysts
    作者:Kian Tan、Xixi Sun、Amanda Worthy
    DOI:10.1055/s-0031-1290321
    日期:2012.2
    Inducing an intramolecular reaction is a powerful means of accelerating reactions. Though this mechanism of catalysis is common in enzymes, it is underutilized in synthetic catalysts. This article outlines our group’s recent efforts to use reversible covalent bonding to induce an intramolecular reaction, allowing for rate acceleration as well as control of the selectivity in the desymmetrization of 1,2-diols.
    诱导分子内反应是加速反应的有力手段。虽然这种催化机制在酶中很常见,但在合成催化剂中却未得到充分利用。本文概述了我们研究小组最近在利用可逆共价键诱导分子内反应方面所做的努力,从而在 1,2-二元醇的去对称化过程中实现了速率加速和选择性控制。
  • An Efficient Protocol for Selective Silylation of Hydroxy Group Using <i>N</i>,<i>O</i>-Bis(<i>tert</i>-butyldimethylsilyl)acetamide and <i>N</i>,<i>N</i>-Dimethyl-4-aminopyridine <i>N</i>-Oxide
    作者:Hiroki Mandai、Yuichiro Matsuura、Fatin Mahfuzah Binti Johari、Koichi Mitsudo、Seiji Suga
    DOI:10.1246/cl.220281
    日期:2022.9.5
    achieved with high chemoselectivity. In addition, several control experiments revealed that a phenolic hydroxy group was silylated much faster than a primary alcohol in both an inter- and intramolecular manner. The reactivity toward silylation under these systems might stem from the pKa of the hydroxy group.
    使用N , O-双(叔丁基二甲基硅烷基)乙酰胺 (BTBSA) 和 3 mol% 的N , N-二甲基-4-氨基吡啶N-化物 (DMAPO)开发了一种有效的醇甲硅烷基化方法。1,2-二醇的单甲硅烷基化成功地实现了高化学选择性。此外,一些对照实验表明,无论是分子间还是分子内,羟基的甲硅烷基化都比伯醇快得多。在这些系统下对甲硅烷基化的反应可能源于羟基的p Ka。
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