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R-(-)-4-ethylhexan-2-ol | 220150-55-0

中文名称
——
中文别名
——
英文名称
R-(-)-4-ethylhexan-2-ol
英文别名
(R)-4-ethyl-2-hexanol;(2R)-4-ethylhexan-2-ol
R-(-)-4-ethylhexan-2-ol化学式
CAS
220150-55-0
化学式
C8H18O
mdl
——
分子量
130.23
InChiKey
ALAPJJMGVQNJIU-SSDOTTSWSA-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:
    171.3±8.0 °C(Predicted)
  • 密度:
    0.819±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    2.7
  • 重原子数:
    9
  • 可旋转键数:
    4
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    1.0
  • 拓扑面积:
    20.2
  • 氢给体数:
    1
  • 氢受体数:
    1

反应信息

  • 作为反应物:
    描述:
    4-acetoxybenzoyl chlorideR-(-)-4-ethylhexan-2-ol吡啶 作用下, 以 甲苯 为溶剂, 反应 3.0h, 以92%的产率得到(R)-3-ethyl-1-methylpentyl-4-acetoxybenzoate
    参考文献:
    名称:
    Optically active compound and liquid crystal composition containing the compound
    摘要:
    以下一般式(1)的旋光活性化合物可用作手性掺杂剂,其中n是0到5的整数,条件是当n为0时,A是一个单键(—),当n为1到5时,A是一个单键(—)、—O—、—COO—、—Cy—或—Cy—COO—,其中—Cy—是一个反式1,4-环己亚甲基基团,X和Y中的每一个独立地是氢原子或氟原子,B是一个单键(—)、—COO—、—COO—Ph—或—Ph—COO—,其中—Ph—是一个1,4-苯基基团,C*是一个不对称碳。本发明的手性掺杂剂具有至少9的高螺旋扭转功率,并且适当地具有这样一个特征,即它们诱导的螺旋间距随着温度的升高而缩短,因此它们适用于向列型液晶组合物中使用。
    公开号:
    US06677475B2
点击查看最新优质反应信息

文献信息

  • Chiral compounds as dopants for liquid crystals
    申请人:MITSUBISHI GAS CHEMICAL COMPANY, INC.
    公开号:EP1380567A1
    公开(公告)日:2004-01-14
    An optically active compound of the general formula (1),    wherein n is an integer of 4 to 8, X is -Ph-COO-Ph-Ph-, -Ph-Ph-COO-Ph-, -Ph-OOC-Ph-Ph-, -Ph-Ph-OOC-Ph-, -Ph-Ph-Ph-, -Cy-COO-Ph-Ph-, -Ph-Ph-OOC-Cy-, -Ph-OOC-Ph-COO-Ph-, -Ph-OOC-Cy-COO-Ph-, -Ph-OOC-Np-COO-Ph-, -Np-OOC-Ph- or -Ph-COO-Np- in which -Ph- is a 1,4-phenylene group, -Cy- is a trans-1,4-cyclohexylene group and -Np- is a 2,6-naphthylene group, and C* is an asymmetric carbon, and a nematic liquid crystal composition containing the above optically active compound. According to the present invention, there is provided a nematic liquid crystal composition containing the optically active compound having a helical twisting power (HTP) of 10 or more and giving a chiral dopant for a nematic liquid crystal, which chiral dopant has a property that the pitch of its induced helix decreases in length with an increase in temperature.
    根据本发明,提供了一种含有上述光学活性化合物的向列型液晶组合物。所述光学活性化合物具有10或以上的螺旋扭曲力(HTP),并为向列型液晶提供手性掺杂剂,该手性掺杂剂具有其诱导螺旋的螺距随温度升高而缩短的性质。
  • Optically active compound and nematic liquid crystal composition containing the compound
    申请人:Mitsubishi Gas Chemical Co., Inc.
    公开号:US20030102459A1
    公开(公告)日:2003-06-05
    An optically active compound of the following general formula (1), 1 wherein A is —C≡C— or —COO—, each of R 1 and R 2 is independently C n H 2n+1 —, (C 2 H 5 ) 2 CHCH 2 C*H(CH 3 )OOC—, C m H 2m+1 C*H(CH 3 )OOC— or C 6 H 5 C*H(CH 3 )OOC— in which n is an integer of 2 to 5, m is an integer of 5 to 9, C 6 H 5 — is phenyl group, and C* is an asymmetric carbon, provided that there is no case where R 1 and R 2 are together C n H 2n+1 — or C 6 H 5 C*H(CH 3 )OOC— and that when both R 1 and R 2 are C m H 2m+1 C*H(CH 3 )OOC—, m in C m H 2m+1 C*H(CH 3 )OOC— represented by R 1 and m in C m H 2m+1 C*H(CH 3 )OOC— represented by R 2 may be different integers. The optically active compound of the present invention is excellently valuable as a chiral dopant since it has properties that its helical twisting power (HTP) is at least 9, that a helical pitch induced decreases with an increase in temperature and further that its birefringence (&Dgr;n) is large.
    以下是通用公式(1)的一个光学活性化合物,其中A为—C≡C—或—COO—,R1和R2中的每一个独立地为CnH2n+1—,(C2H5)2CHCH2C*H(CH3)OOC—,CmH2m+1C*H( )OOC—或 C*H( )OOC—,其中n为2至5的整数,m为5至9的整数,C6H5—为基,C*为不对称,前提是不存在R1和R2同时为CnH2n+1—或 C*H( )OOC—的情况,当R1和R2均为CmH2m+1C*H( )OOC—时,CmH2m+1C*H( )OOC—中的m由R1表示,CmH2m+1C*H( )OOC—中的m由R2表示,可能是不同的整数。本发明的光学活性化合物非常有价值,因为它作为手性掺杂剂具有以下特性:其螺旋扭转功率(HTP)至少为9,随着温度升高,诱导的螺距减小,而且其双折射(Δn)很大。
  • Optically active alcohol and process for the production thereof
    申请人:MITSUBISHI GAS CHEMICAL COMPANY, INC.
    公开号:EP0893422A1
    公开(公告)日:1999-01-27
    An R-configuration or S-configuration optically active alcohol of the general formula (1),         CH3C*H(OH)(CH2)mCH(CnH2n+1)2     (1) wherein C* is an asymmetric carbon atom, m is an integer of 0 to 3, and n is an integer of 1 to 3; and a process for the production thereof, which comprises asymmetrically trans-esterifying a corresponding racemic alcohol to conduct the optical resolution. This is preferably carried out in the presence of a lipase extracted from Candida antarcia as catalyst.
    一个具有一般式(1)的R构型或S构型的光学活性醇,其中C*是一个不对称原子,m是0到3的整数,n是1到3的整数;以及一种生产该醇的方法,包括将相应的消旋醇进行不对称的化反应以进行光学分辨。最好在从南极白假丝酵母中提取的脂肪酶存在下进行。
  • Ferrielectric liquid crystal compound
    申请人:MITSUBISHI GAS CHEMICAL COMPANY, INC.
    公开号:EP0974636A1
    公开(公告)日:2000-01-26
    The present invention provides a ferrielectric liquid crystal compound represented by the following general formula (1), wherein R is a linear alkyl group having of 6 to 12 carbon atoms, X is a hydrogen atom or a fluorine atom, m is an integer of 1 to 3, n is an integer of 1 to 3, and C* is an asymmetric carbon atom. The ferrielectric liquid crystal compound of the present invention has a ferrielectric phase in a broad temperature range and shows a high speed response in spite of a small spontaneous polarization, and accordingly, it is very useful as a practical raw material for liquid crystal display device.
    本发明提供一种液晶化合物,由以下通式(1)表示、 其中 R 是具有 6 至 12 个原子的直链烷基,X 是原子或原子,m 是 1 至 3 的整数,n 是 1 至 3 的整数,C* 是不对称原子。 本发明的液晶化合物在很宽的温度范围内具有电相,尽管自发极化很小,但仍能显示出高速响应,因此,它作为液晶显示装置的实用原材料非常有用。
  • US6197389B1
    申请人:——
    公开号:US6197389B1
    公开(公告)日:2001-03-06
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