摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词

(E)-4,4-dimethyl-1-(1-methyl-1H-imidazol-2-yl)pent-2-en-1-one | 1257338-72-9

中文名称
——
中文别名
——
英文名称
(E)-4,4-dimethyl-1-(1-methyl-1H-imidazol-2-yl)pent-2-en-1-one
英文别名
(E)-4,4-Dimethyl-1-(1-methyl-1H-imidazol-2-yl)-2-penten-1-one;(E)-4,4-dimethyl-1-(1-methylimidazol-2-yl)pent-2-en-1-one
(E)-4,4-dimethyl-1-(1-methyl-1H-imidazol-2-yl)pent-2-en-1-one化学式
CAS
1257338-72-9
化学式
C11H16N2O
mdl
——
分子量
192.261
InChiKey
DYXLIKSWSNHKBM-AATRIKPKSA-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:
    318.5±25.0 °C(predicted)
  • 密度:
    0.98±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    2.2
  • 重原子数:
    14
  • 可旋转键数:
    3
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.45
  • 拓扑面积:
    34.9
  • 氢给体数:
    0
  • 氢受体数:
    2

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    参考文献:
    名称:
    环二核苷酸人工金属酶及其制备和催化不对称Friedel-Crafts反应的应用
    摘要:
    本发明公开了一种环二核苷酸人工金属酶及其制备和在催化不对称Friedel‑Crafts反应中的应用。该金属酶的结构式为式中A、B各自独立的代表中任意一种,C代表H或OH,D代表Cu(OTf)2、CuSO4、CuCl2、Cu(NO3)2、中任意一种。本发明将环二核苷酸作为主体分子,与金属离子或者金属配合物自组装形成环二核苷酸人工金属酶,其制备方法简便,结构新颖,用于催化水相中不对称Friedel‑Crafts反应,催化活性高,可实现较高的对映体选择性。
    公开号:
    CN110511259B
  • 作为产物:
    描述:
    1-(1-methyl-1H-imidazole-2-yl)-2-(triphenylphosphoranylidene)-ethanone 、 特戊醛 为溶剂, 反应 105.0h, 以85%的产率得到(E)-4,4-dimethyl-1-(1-methyl-1H-imidazol-2-yl)pent-2-en-1-one
    参考文献:
    名称:
    Photocatalytic [2 + 2] Cycloadditions of Enones with Cleavable Redox Auxiliaries
    摘要:
    alpha,beta-Unsaturated 2-imidazolyl ketones undergo [2 + 2] cycloaddition with a variety of Michael acceptors upon irradiation with visible light in the presence of Ru(bpy)(3)(2+). Cleavage of the imidazolyl auxiliary from the cycloadducts affords cyclobutane carboxamides, esters, thioesters, and acids that would not be accessible from direct cycloaddition of the corresponding unsaturated carbonyl compounds.
    DOI:
    10.1021/ol3000298
点击查看最新优质反应信息

文献信息

  • Highly Efficient Cyclic Dinucleotide Based Artificial Metalloribozymes for Enantioselective Friedel–Crafts Reactions in Water
    作者:Changhao Wang、Min Hao、Qianqian Qi、Jingshuang Dang、Xingchen Dong、Shuting Lv、Ling Xiong、Huanhuan Gao、Guoqing Jia、Yashao Chen、Jörg S. Hartig、Can Li
    DOI:10.1002/anie.201912962
    日期:2020.2.24
    construct artificial metalloenzymes (ArMs) for enantioselective catalysis. DNA-based ArMs containing duplex and G-quadruplex scaffolds have been widely investigated, yet RNA-based ArMs are scarce. Here we report that a cyclic dinucleotide of c-di-AMP and Cu2+ ions assemble into an artificial metalloribozyme (c-di-AMP⋅Cu2+ ) that enables catalysis of enantioselective Friedel-Crafts reactions in aqueous
    核酸的各种二级结构正以吸引人的手性支架的形式出现,以构建用于对映选择性催化的人工金属酶(ArM)。包含双链体和G-四链体支架的基于DNA的ArM已被广泛研究,但基于RNA的ArM却很少。在这里,我们报道c-di-AMP和Cu2 +离子的环状二核苷酸组装成人工金属核酶(c-di-AMP⋅Cu2+),该催化金属能够在水介质中以高反应性和出色的对映选择性进行催化对映选择性Friedel-Crafts反应。到97%ee。与Cu2 +离子相比,c-di-AMP⋅Cu2+的组装产生了20倍的速率加速。基于各种生物物理技术和密度函数理论(DFT)计算,
  • Copper‐Catalyzed Asymmetric Conjugate Addition of Dimethylzinc to Acyl‐ <i>N</i> ‐methylimidazole Michael Acceptors: a Powerful Synthetic Platform
    作者:Sammy Drissi‐Amraoui、Marie S. T. Morin、Christophe Crévisy、Olivier Baslé、Renata Marcia de Figueiredo、Marc Mauduit、Jean‐Marc Campagne
    DOI:10.1002/anie.201506189
    日期:2015.9.28
    An efficient copper‐catalyzed enantioselective conjugate addition of dimethylzinc to α,β‐ and α,β,γ,δ‐unsaturated 2‐acyl‐N‐methylimidazoles has been achieved using a chiral bidentate hydroxyalkyl‐NHC ligand. The reactions proceeded with both excellent regio‐ and enantioselectivity (14 examples, 87–95 % ee) to afford the desired 1,4‐adducts, which were easily transformed to the corresponding aldehydes
    使用手性双齿羟基烷基-NHC配体可实现高效的铜催化对映选择性共轭二甲基锌加成到α,β-和α,β,γ,δ-不饱和2-酰基-N-甲基咪唑。反应进行时具有出色的区域选择性和对映体选择性(14个实例,87-95%ee),得到所需的1,4-加合物,可轻松转化为相应的醛,酯和酮。因此,这种功能强大的方法因此成功地应用于天然产物的合成中。此外,还公开了一种迭代过程,该过程导致了非常理想的1,3--去氧丙酸酯骨架(高达94%de)。
  • Catalytic enantioselective syn hydration of enones in water using a DNA-based catalyst
    作者:Arnold J. Boersma、David Coquière、Danny Geerdink、Fiora Rosati、Ben L. Feringa、Gerard Roelfes
    DOI:10.1038/nchem.819
    日期:2010.11
    The enantioselective addition of water to olefins in an aqueous environment is a common transformation in biological systems, but was beyond the ability of synthetic chemists. Here, we present the first examples of a non-enzymatic catalytic enantioselective hydration of enones, for which we used a catalyst that comprises a copper complex, based on an achiral ligand, non-covalently bound to (deoxy)ribonucleic acid, which is the only source of chirality present under the reaction conditions. The chiral β-hydroxy ketone product was obtained in up to 82% enantiomeric excess. Deuterium-labelling studies demonstrated that the reaction is diastereospecific, with only the syn hydration product formed. So far, this diastereospecific and enantioselective reaction had no equivalent in conventional homogeneous catalysis. Nature frequently shows exquisite control over reactions both of water and in water. Here, the enantioselective conjugate addition of water to an enone — a reaction that has no equivalent in conventional homogeneous catalysis — is catalysed by a copper complex of an achiral ligand that is non-covalently bound to DNA.
    在水环境中水与烯烃的对映体选择性加成是生物系统中常见的转化过程,但合成化学家却无法做到。在这里,我们首次展示了烯酮的非酶催化对映体选择性水合反应,为此我们使用了一种催化剂,该催化剂由基于非手性配体的铜络合物组成,铜络合物与(脱氧)核糖核酸非共价结合,而核糖核酸是反应条件下存在的唯一手性来源。手性δ-羟基酮产品的对映体过量率高达 82%。氘标记研究表明,该反应具有非对映特异性,只形成了同步水合产物。迄今为止,这种非对映专一性和对映体选择性反应在传统的均相催化反应中还没有出现过。大自然经常对水和水中的反应进行精妙的控制。在这里,水与烯酮的对映选择性共轭加成反应是由非共价结合到 DNA 上的非手性配体的铜络合物催化的。
  • Asymmetric synthesis of cyclic β-amino carbonyl derivatives by a formal [3 + 2] photocycloaddition
    作者:Leonardo Mollari、Miguel A. Valle-Amores、Ana M. Martínez-Gualda、Leyre Marzo、Alberto Fraile、José Aleman
    DOI:10.1039/d1cc05867c
    日期:——
    reactivity relies on the performance of the substrate-catalyst complex to assist both the enantiocontrol and the photoredox tasks. This transformation led to an enantioselective [3 + 2] photocycloaddition between coordinated α,β-unsaturated acyl imidazoles and cyclopropylamine derivatives.
    本文介绍了一种可见光介导的策略,该策略可解锁具有三个连续立体中心的环状 β-氨基羰基衍生物家族。整体反应性依赖于底物-催化剂复合物的性能,以协助对映控制和光氧化还原任务。这种转化导致了配位的 α,β-不饱和酰基咪唑和环丙胺衍生物之间的对映选择性 [3 + 2] 光环加成反应。
  • Photocatalytic [2 + 2] Cycloadditions of Enones with Cleavable Redox Auxiliaries
    作者:Elizabeth L. Tyson、Elliot P. Farney、Tehshik P. Yoon
    DOI:10.1021/ol3000298
    日期:2012.2.17
    alpha,beta-Unsaturated 2-imidazolyl ketones undergo [2 + 2] cycloaddition with a variety of Michael acceptors upon irradiation with visible light in the presence of Ru(bpy)(3)(2+). Cleavage of the imidazolyl auxiliary from the cycloadducts affords cyclobutane carboxamides, esters, thioesters, and acids that would not be accessible from direct cycloaddition of the corresponding unsaturated carbonyl compounds.
查看更多