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meso-1,2-dicyclohexyl-ethane-1,2-diol

中文名称
——
中文别名
——
英文名称
meso-1,2-dicyclohexyl-ethane-1,2-diol
英文别名
(1R,2S)-1,2-dicyclohexylethane-1,2-diol
meso-1,2-dicyclohexyl-ethane-1,2-diol化学式
CAS
——
化学式
C14H26O2
mdl
——
分子量
226.359
InChiKey
CKHLARJSOMXDKL-OKILXGFUSA-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

计算性质

  • 辛醇/水分配系数(LogP):
    3.7
  • 重原子数:
    16
  • 可旋转键数:
    3
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    1.0
  • 拓扑面积:
    40.5
  • 氢给体数:
    2
  • 氢受体数:
    2

反应信息

  • 作为反应物:
    描述:
    4,4,5,5-tetramethyl-2-[(triphenylmethoxy)methyl]-1,3,2-trioxaborolane 、 meso-1,2-dicyclohexyl-ethane-1,2-diol正戊烷 为溶剂, 以98%的产率得到[R-(4α,5β)]-4,5-dicyclohexyl-2-[(triphenylmethoxy)methyl]-1,3,2-dioxaborolane
    参考文献:
    名称:
    ((Trityloxy)methyl)boronic Esters
    摘要:
    Sodium trityl oxide with 2-(bromomethyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane [pinacol (bromomethyl)boronate (1)] in dimethyl sulfoxide efficiently yields 4,4,5,5-tetramethyl-2-[(triphenylmethoxy)methyl]-1,3,2-dioxaborolane (3), which can be transesterified with chiral diols to form other [(triphenylmethoxy)methyl]-1,3,2-dioxaborolanes. These can undergo chain extension with (dichloromethyl)lithium in the normal manner and are potentially useful synthetic intermediates. The majority of known boronic esters are liquids, but the trityl group confers crystallinity on several examples. Six structures have been determined: 4,4,5,5-tetramethyl-2-[(triphenylmethoxy)methyl]-1,3,2-dioxaborolane (3), [R-(4 alpha,5 beta)]-4,5-dicyclohexyl-2-[(triphenylmethoxy)methyl] (4), [S-(4 alpha,5 beta)]-4,5-bis(1-methylethyl)-2-[(triphenylmethoxy)methyl]-1,3,2-dioxaborolane (5), (R)-pinanediol ((trityloxy)methyl)boronate (ent-6), (S)-pinanediol (S)-(1-chloro-2-(trityloxy)ethyl)boronate (7a), and (S)-pinanediol (S)-(1-bromo-2-(trityloxy)ethyl)boronate (7b). The 1,3,2-dioxaborolane ring is very nearly planar, consistent with strong oxygen-boron pi-bonding.
    DOI:
    10.1021/om00006a034
  • 作为产物:
    参考文献:
    名称:
    Note on α,β-Dicyclohexylethylene Glycol.
    摘要:
    DOI:
    10.1021/ja01341a506
  • 作为试剂:
    描述:
    (o-methoxyphenyl)methylphenylphosphine四氯化碳meso-1,2-dicyclohexyl-ethane-1,2-diol 作用下, 反应 24.0h, 以18%的产率得到
    参考文献:
    名称:
    [EN] CHIRAL PHOSPHORUS COMPOUNDS
    [FR] COMPOSES PHOSPHORES CHIRAUX
    摘要:
    一种立体选择性制备P-手性四配位磷化合物的方法,该方法包括将来自手性醇,手性胺或手性硫醇的第一反应物与包含P-手性三配位磷化合物的第二反应物在亲电试剂的存在下反应。
    公开号:
    WO2005118603A1
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文献信息

  • Pinacol couplings of a series of aldehydes and ketones with SmI2/Sm/Me3SiCl in DME
    作者:Aya Yoshimura、Tomokazu Saeki、Akihiro Nomoto、Akiya Ogawa
    DOI:10.1016/j.tet.2015.06.007
    日期:2015.8
    The pinacol coupling is one of the most significant methods to synthesize vic-diols. The combination of samarium diiodide (SmI2) and samarium metal successfully induces the selective pinacol couplings of not only aromatic aldehydes and ketones but also aliphatic ones in the presence of trimethylchlorosilane (Me3SiCl) in 1,2-dimethoxyethane (DME). DME is the most suitable solvent for the reduction system
    频哪醇耦合是最显著的方法来合成一个VIC -diols。在1,2-二甲氧基乙烷(DME)中存在三甲基氯硅烷(Me 3 SiCl)的情况下,二碘化mar(SmI 2)和金属metal的组合不仅成功诱导了芳族醛和酮的选择性频哪醇偶联,而且还诱导了脂肪族的选择性频哪醇偶联。对于使用SmI 2和Me 3 SiCl的还原系统,DME是最合适的溶剂。Me 3 SiCl是一种广泛使用的添加剂,可防止所形成的vic- diols分解,即内消旋-异构体,并控制其立体化学。特别地,空间受阻的脂族醛和酮的频哪醇偶联以优异的非对映选择性进行,以良好的产率提供dl-异构体。
  • Samarium Diiodide-Catalyzed Diastereoselective Pinacol Couplings
    作者:Helen C. Aspinall、Nicholas Greeves、Carine Valla
    DOI:10.1021/ol050256f
    日期:2005.5.1
    of samarium diiodide (SmI(2)) with tetraglyme catalyzes the intermolecular pinacol coupling of aromatic or aliphatic aldehydes at loadings of 10 mol % in the presence of Me(2)SiCl(2) and Mg. Diastereoselectivity of up to 95/5 (+/-/meso) has been achieved for aliphatic aldehydes and up to 19/81 (+/-/meso) for aromatic aldehydes. De values of up to 99% have been achieved in intramolecular pinacol coupling
    二碘化sa(SmI(2))与四甘醇二甲醚的复合物在Me(2)SiCl(2)和Mg的存在下以10 mol%的负载量催化芳族或脂族醛的分子间频哪醇偶联。对于脂族醛,已达到非对映选择性高达95/5(+ /-/ meso),对于芳族醛,已达到非对映选择性高达19/81(+ /-/ meso)。使用SmI(2)/ tetraglyme / Mg / Me(2)SiCl(2)催化系统,在分子内频哪醇偶联反应中实现了高达99%的De值。
  • Facile pinacol coupling of aliphatic ketones by Brook rearrangement in the presence of samarium species
    作者:Xincan Wang、Guanqun Xie、Yanfei Zhao、Ke Zheng、Yanxiong Fang、Xiaoxia Wang
    DOI:10.1016/j.tetlet.2021.153069
    日期:2021.5
    Herein we report a practical pinacol coupling reaction, in which ketones (aldehydes) react smoothly with Sm and TMSBr to afford the diol products with Sm(II) or (III) siliyl species generated in situ. This reported method affords poor yields for aromatic ketone substrates and good yields for aliphatic ketones. Therefore, it distinguishes from most reductive coupling approaches that are more effective for
    在本文中,我们报道了一种实用的频哪醇偶联反应,其中酮(醛)与Sm和TMSBr平稳反应,得到具有Sm(II)或(III)硅烷基的原位生成的二醇产物。该报道的方法提供的芳族酮底物收率低,而脂肪族酮的收率好。因此,它与大多数还原性偶联方法不同,后者对芳族羰基化合物更有效,并且为脂肪族酮的频哪醇偶联提供了一种简便而稳健的方法。机理研究还表明,在存在((II或III)甲硅烷基物种的情况下,固定化可能是通过阴离子进行的,而不是通过涉及Brook重排的自由基偶联途径进行的。
  • Reductive Self-coupling Reaction of Imines and Aldehydes Induced by Strontium Metal
    作者:Norikazu Miyoshi、Tadashi Kohno、Makoto Wada、Sei Matsunaga、Isao Mizota、Makoto Shimizu
    DOI:10.1246/cl.2009.984
    日期:2009.10.5
    Aromatic aldimines reacted with Sr in the presence of a catalytic amount of iodine to give self-coupling products in good yields, whereas aromatic and aliphatic aldehydes underwent a similar reaction effected by the combined use of Sr and Al(OEt)3.
    芳香醛亚胺在催化量碘的存在下与Sr反应,以良好产率生成自偶联产物,而芳香和脂肪族醛则通过Sr与Al(OEt)3的联合使用,经历类似的反应。
  • Influence of a dimetal ion binding ferrocene ligand on the samarium diiodide promoted pinacol coupling reaction
    作者:Torben Birk Christensen、Ditte Riber、Kim Daasbjerg、Troels Skrydstrup
    DOI:10.1039/a904278d
    日期:——
    Substantial yield increases have been noted in the use of a di-SmI2 binding ligand for the pinacol coupling of alkyl aldehydes compared to 1∶1 complexes of SmI2 and tetraglyme. High diastereoselectivities of ca. 10∶1 are also observed for α-substituted alkyl aldehydes in favour of the (±)-isomers.
    已观察到使用二-SmI2配位配体进行烷基醛的Pinacol偶联反应时,与SmI2和四甘酯的1:1复合物相比,产率显著提高。对于α-取代的烷基醛,(±)-异构体的反应表现出约10:1的高反式选择性。
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