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(2R,3S)-(3-ethyloxiran-2-yl)phenylmethanone

中文名称
——
中文别名
——
英文名称
(2R,3S)-(3-ethyloxiran-2-yl)phenylmethanone
英文别名
trans-(2R,3S)-(3-ethyloxiran-2-yl)(phenyl) methanone;[(2R,3S)-3-ethyloxiran-2-yl]-phenylmethanone
(2R,3S)-(3-ethyloxiran-2-yl)phenylmethanone化学式
CAS
——
化学式
C11H12O2
mdl
——
分子量
176.215
InChiKey
HBQVDTYZMTUZFX-GXSJLCMTSA-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):
    2.3
  • 重原子数:
    13
  • 可旋转键数:
    3
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    0.36
  • 拓扑面积:
    29.6
  • 氢给体数:
    0
  • 氢受体数:
    2

反应信息

  • 作为反应物:
    描述:
    (2R,3S)-(3-ethyloxiran-2-yl)phenylmethanone苄基三乙基氯化铵甲基磺酰氯 作用下, 以 为溶剂, 反应 5.5h, 以75.904%的产率得到
    参考文献:
    名称:
    氯苯乙酮和芳酰基氯醇的高产率水合成†
    摘要:
    在工业化学过程中使用大量挥发性有机溶剂会造成广泛的环境污染。为了帮助解决该问题,在将溴苯乙酮转化为氯苯乙酮,将芳酰基环氧化物转化为芳酰基氯醇的过程中,使用水和相转移催化剂代替有机溶剂。磺酰氯促进反应,并给出定量或接近定量的产率。特别地,不需要费力并且消耗大量有机溶剂的色谱纯化。这两个过程为制备化学中间体氯乙酰苯和芳酰氯醇开辟了一条绿色且具有成本效益的途径。在控制实验的基础上讨论了反应机理。
    DOI:
    10.1039/c6ra00433d
  • 作为产物:
    描述:
    1-phenylpent-2-en-1-one 在 C58H64N4O4S(2+)*2Br(1-)双氧水caesium carbonate 作用下, 以 甲苯 为溶剂, 反应 4.5h, 以86%的产率得到(2R,3S)-(3-ethyloxiran-2-yl)phenylmethanone
    参考文献:
    名称:
    A new class of bifunctional chiral phase transfer catalysts for highly enantioselective asymmetric epoxidation of α,β-unsaturated ketones at ambient temperature
    摘要:
    A new type of bis-quaternary ammonium bromide as chiral multifunctional phase transfer catalysts derived from readily available inexpensive cinchona alkaloids has been developed and evaluated for the enantioselective asymmetric epoxidation of various chalcones in the presence of lower concentrations of various oxidants, bases, solvents and ambient temperature conditions. Under optimized reaction conditions, highest chemical yields of up to 98% along with the excellent enantioselectivities of about 99% were obtained by using the cinchona based chiral multifunctional phase transfer catalysts. (C) 2015 Elsevier B.V. All rights reserved.
    DOI:
    10.1016/j.molcata.2015.08.016
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文献信息

  • Catalytic asymmetric Darzens condensation under phase-transfer-catalyzed conditions
    作者:Shigeru Arai、Takayuki Shioiri
    DOI:10.1016/s0040-4039(98)00081-1
    日期:1998.4
    The catalytic asymmetric Darzens condensation promoted by the quaternary ammonium salt (PTC A) derived from cinchonine as a phase-transfer catalyst is described. Treatment of phenacyl chloride with various aldehydes under mild reaction conditions afforded the corresponding desired product in good yield with good to moderate enantiomeric excess.
    描述了由金鸡宁衍生的季铵盐(PTC A)作为相转移催化剂促进的催化不对称Darzens缩合反应。在温和的反应条件下用各种醛处理苯甲酰氯,以高收率得到适当的对映体,得到相应的所需产物。
  • Phase-transfer-catalyzed asymmetric Darzens reaction
    作者:Shigeru Arai、Yoshiki Shirai、Toshimasa Ishida、Takayuki Shioiri
    DOI:10.1016/s0040-4020(99)00213-6
    日期:1999.5
    Catalytic asymmetric Darzens reaction promoted by a chiral phase-transfer catalyst derived from cinchonine is described. The desired α,β-epoxy ketones were obtained by use of α-chloro acyclic and cyclic ketones as substrates with moderate to high enantiomeric excesses under mild reaction conditions. This methodology can be quite an effective protocol for practical asymmetric synthesis.
    描述了由辛可宁衍生的手性相转移催化剂促进的催化不对称Darzens反应。在温和的反应条件下,以α-氯无环和环状酮为底物,对映体过量到中度到高,可以得到所需的α,β-环氧酮。对于实际的不对称合成,该方法可能是非常有效的协议。
  • Darzens Reaction Rate Enhancement Using Aqueous Media Leading to a High Level of Kinetically Controlled Diastereoselective Synthesis of Steroidal Epoxyketones
    作者:Bo Li、Chunbao Li
    DOI:10.1021/jo501500v
    日期:2014.9.5
    been used in aqueous Darzens reactions. The Darzens reactions were much faster in water than in organic solvents. This aqueous rate enhancement occurred for Darzens reactions between enantiopure steroidal haloketones and aldehydes, yielding enantiopure spiroepoxides with a high level of kinetically controlled diastereoselectivity. Chromatography was avoided in the purifications of the steroidal spiroepoxides
    卤代羰基和醛之间的Darzens反应已在水中在Li +存在下进行机械搅拌下,将其包含碱,相转移催化剂和粒状聚四氟乙烯。使用芳族和脂族醛的反应以良好至优异的收率立体选择性地产生环氧化物。这是首次将具有α-H的脂族醛用于水性Darzens反应。在水中的Darzens反应比在有机溶剂中的反应快得多。这种对水的速率提高发生于对映纯的类固醇卤代酮和醛之间的Darzens反应,产生具有高水平动力学控制的非对映选择性的对映纯螺环氧化物。甾族螺环氧化物的纯化避免使用色谱法。这是使用手性α-卤代酮底物通过水性Darzens反应制备对映体纯的环氧酮的实例。
  • Michael-type addition of hydroxide to alkynylselenonium salt: practical use as a ketoselenonium ylide precursor
    作者:Shin-ichi Watanabe、Shinsuke Asaka、Tadashi Kataoka
    DOI:10.1016/j.tetlet.2004.08.036
    日期:2004.9
    A novel synthetic method of ketodiphenylselenonium ylide from alkynylselenonium salt is described. A reaction of alkynylselenonium salt, hydroxide ion, and aldehyde in the presence of silver triflate and triethylamine gave oxiranylketones just as a trans-isomer in moderate to good yields, whereas benzoyl aziridine derivatives were obtained from the reaction with sodium p-toluenesulfonamide instead
    描述了一种从炔基硒鎓盐合成酮二苯基硒鎓叶立德的新方法。在三氟甲磺酸银和三乙胺的存在下,炔基硒鎓盐,氢氧根离子和醛的反应以中等至良好的收率得到了环氧乙烷基酮,就像反式异构体一样,而苯甲酰基氮丙啶衍生物是从与对甲苯磺酰胺钠而不是苯甲酰胺的反应中获得的。氢氧根离子
  • Enantioselective Epoxidation of α,β-Enones by Electrophilic Activation with a BINOL-Zinc Catalyst
    作者:Ana Minatti、Karl Heinz Dötz
    DOI:10.1002/ejoc.200500606
    日期:2006.1
    affords, in situ, a catalyst for homogeneous epoxidation of (E)-α,β-enones to the corresponding trans-epoxy ketones. tert-Butyl hydroperoxide (TBHP) and cumene hydroperoxide (CMHP) are effective terminal oxidants for this process. Enantiomeric excesses of up to 96 % can be achieved conveniently at room temperature. Mechanistic investigations point towards an electrophilic activation of the substrates
    BINOL 和二烷基锌试剂 R2Zn 的组合提供了原位催化剂,用于将 (E)-α,β-烯酮均匀环氧化成相应的反式环氧酮。叔丁基氢过氧化物 (TBHP) 和氢过氧化枯烯 (CMHP) 是该过程的有效末端氧化剂。在室温下可以方便地实现高达 96% 的对映体过量。机理研究表明,手性 BINOL-锌催化剂对底物进行了亲电活化,并随后对氧化剂进行了亲核攻击。非线性效应、绝对产物构型以及 NMR 研究也支持这一机制建议。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)
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