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3,4-epoxy-3,4-dihydro-6-methoxy-2,2-dimethyl-2H-1-benzopyran | 13229-61-3

中文名称
——
中文别名
——
英文名称
3,4-epoxy-3,4-dihydro-6-methoxy-2,2-dimethyl-2H-1-benzopyran
英文别名
2,2-dimethyl-6-methoxy-2H-chromene oxide;3,4-epoxy-6-methoxy-2,2-dimethyl-chroman;6-Methoxy-2,2-dimethyl-1a,7b-dihydrooxireno[2,3-c]chromene
3,4-epoxy-3,4-dihydro-6-methoxy-2,2-dimethyl-2H-1-benzopyran化学式
CAS
13229-61-3
化学式
C12H14O3
mdl
——
分子量
206.241
InChiKey
DWQLEXJSAGRCJG-UHFFFAOYSA-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):
    1.8
  • 重原子数:
    15
  • 可旋转键数:
    1
  • 环数:
    3.0
  • sp3杂化的碳原子比例:
    0.5
  • 拓扑面积:
    31
  • 氢给体数:
    0
  • 氢受体数:
    3

上下游信息

  • 下游产品
    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:
    描述:
    3,4-epoxy-3,4-dihydro-6-methoxy-2,2-dimethyl-2H-1-benzopyran环己烷 为溶剂, 反应 6.0h, 以52%的产率得到2,2-dimethyl-5-methoxy-2,3-dihydrobenzofuran
    参考文献:
    名称:
    3.4-环氧前十碳烯-I和相关的环氧化铬的光化学行为
    摘要:
    进行了系统的研究3,4-epoxyprecocene-I和相关的环氧chromans的光化学行为。在丙酮或环己烷中辐照后,发现3,4-环氧前十烯-1经历光异构化为相应的3-苯并二氢吡喃酮。相反,发现类似的3,4-二氢-3,4-环氧-2H-1-苯并吡喃3的光化学行为取决于溶剂的性质。在环己烯中辐射3导致光脱羰基化导致2,3-二氢苯并呋喃的形成,而在丙酮中辐射导致chramanones的形成。
    DOI:
    10.1016/s0040-4020(01)89238-3
  • 作为产物:
    参考文献:
    名称:
    取代的反式-4-氨基-3,4-二氢-2,2-二甲基-2H-1-苯并吡喃-3-醇的合成及降压活性。
    摘要:
    制备了一系列新型取代的反式-4-氨基-3,4-二氢-2,2-二甲基-2H-1-苯并吡喃-3-醇,并在有意识的乙酸脱氧皮质酮(DOCA)/盐水处理中测试了其降压活性。高血压大鼠。最佳的降血压活性需要一个强的吸电子基团与6位上的吡咯烷基或哌啶子基团一起进行6位取代。7-硝基-4-吡咯烷类似物和6-硝基-3-氯丙胺的例外,它们保留了明显的降压活性。所有这些化合物都是直接的血管扩张药,并且具有与肼屈嗪和钙拮抗剂硝苯地平相当的降压活性。这些化合物的合成路线包括将炔丙基醚环化为2H-1-苯并吡喃,然后通过溴代醇转化为3,4-环氧化物,用适当的胺开环。间取代的炔丙基醚在热环化反应中同时产生5-和7-取代的苯并吡喃,前者占优势。描述了一种新的制备2,2-二甲基-7-硝基苯并吡喃的途径。
    DOI:
    10.1021/jm00365a007
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文献信息

  • Multivariate Metal–Organic Frameworks as Multifunctional Heterogeneous Asymmetric Catalysts for Sequential Reactions
    作者:Qingchun Xia、Zijian Li、Chunxia Tan、Yan Liu、Wei Gong、Yong Cui
    DOI:10.1021/jacs.7b03113
    日期:2017.6.21
    The search for versatile heterogeneous catalysts with multiple active sites for broad asymmetric transformations has long been of great interest, but it remains a formidable synthetic challenge. Here we demonstrate that multivariate metal-organic frameworks (MTV-MOFs) can be used as an excellent platform to engineer heterogeneous catalysts featuring multiple and cooperative active sites. An isostructural
    长期以来,人们对寻找具有多个活性位点的多功能多相催化剂进行广泛的不对称转化一直很感兴趣,但它仍然是一个艰巨的合成挑战。在这里,我们证明了多元金属有机框架 (MTV-MOF) 可用作设计具有多个协同活性位点的多相催化剂的绝佳平台。构建了包含多达三种不同手性金属盐催化剂的 2 倍互穿 MTV-MOF 的同构系列,并将其用作各种不对称顺序烯烃环氧化/环氧化物开环反应的高效且可回收的多相催化剂。框架的相互渗透使金属盐单元彼此相邻,允许协同激活,这导致在单个部分的总和上提高效率和对映选择性。在 MTV-MOF 中操纵分子催化剂可以控制活性和选择性的事实将有助于设计用于对映选择性过程的新型多功能材料。
  • Epoxidation of strained alkenes catalysed by (1,2-dimethyl-4(1H)pyridinone-3-olate)2MnIIICl
    作者:Adam P. Robinson-Miller、Mark F. Wyatt、David Tétard
    DOI:10.1016/j.molcata.2014.12.012
    日期:2015.3
    The mild epoxidation of strained alkenes using (DMPO)2MnCl catalyst (DMPO = 1,2-dimethyl-4(1H)-pyridinone-3-olate) in the presence of various oxidants was studied. Hydrogen peroxide and monopersulfate were found to be the best oxidants when used with imidazole in acetonitrile at 4 °C, with up to 94% conversion. Dismutation of hydrogen peroxide was also observed when used as an oxidant. The epoxidation
    研究了在各种氧化剂存在下,使用(DMPO)2 MnCl催化剂(DMPO = 1,2-二甲基-4(1H)-吡啶酮-3-油酸酯)对链烯烃进行的轻度环氧化。与咪唑一起在4°C的乙腈中使用时,发现过氧化氢和单过硫酸盐是最好的氧化剂,转化率高达94%。当用作氧化剂时,也观察到过氧化氢的歧化。使用过氧化氢或单过硫酸氢盐的环氧化似乎是温和的,并且对于过滤的烯烃具有非常高的选择性。提出了一种机制,其中需要咪唑来活化氧化剂,并提出了将检测到的Mn V  = O物种作为活性物种。H 2 O 2之间的竞争反应 提出了用于活性物质的底物,并讨论了氧化剂的OO键的均裂与异裂。
  • Design and Assembly of Chiral Coordination Cages for Asymmetric Sequential Reactions
    作者:Jingjing Jiao、Chunxia Tan、Zijian Li、Yan Liu、Xing Han、Yong Cui
    DOI:10.1021/jacs.7b11679
    日期:2018.2.14
    and are yet challenging to construct. Here we report the design and assembly of five chiral single- and mixed-linker tetrahedral coordination cages using six dicarboxylate ligands derived-from enantiopure Mn(salen), Cr(salen) and/or Fe(salen) as linear linkers and four Cp3Zr3 clusters as three-connected vertices. The formation of these cages was confirmed by a variety of techniques including single-crystal
    具有多个催化活性位点的超分子纳米反应器具有重要意义,特别是对于不对称催化,但构建起来仍具有挑战性。在这里,我们报告了使用源自对映体纯 Mn(salen)、Cr(salen) 和/或 Fe(salen) 作为线性接头和四个 Cp3Zr3 簇的六个二羧酸配体的五个手性单和混合接头四面体配位笼的设计和组装作为三个连接的顶点。这些笼子的形成通过多种技术得到证实,包括单晶和粉末 X 射线衍射、电感耦合等离子体发射光谱仪、四极杆飞行时间质谱和能量色散 X 射线光谱。笼子具有纳米级疏水腔,装饰有相同或不同的催化活性位点,含有 Mn(salen) 和 Cr(salen) 物质的混合连接器笼被证明是一种有效的超分子催化剂,用于顺序不对称烯烃环氧化/环氧化物开环反应,ee 高达 99.9%。由于催化活性金属盐单元的稳定性和腔内反应物的浓度,笼状催化剂表现出比游离催化剂更高的活性和对映选择性。对笼中催化有机接头
  • A chiral metal–organic framework for sequential asymmetric catalysis
    作者:Feijie Song、Cheng Wang、Wenbin Lin
    DOI:10.1039/c1cc12701b
    日期:——
    A chiral metal–organic framework (MOF) of the lcy topology was constructed from the Mn–Salen derived dicarboxylic acid and the [Zn4(μ4-O)(O2CR)6] secondary building unit, and used in highly regio- and stereo-selective sequential alkene epoxidation/epoxide ring-opening reactions.
    由 MnâSalen 衍生的二羧酸和[Zn4(δ4-O)(O2CR)6]二级结构单元构建了具有 lcy 拓扑结构的手性金属有机框架 (MOF),并将其用于高区域和立体选择性的顺序烯环氧化/环氧化物开环反应。
  • 6-Substituted Benzopyrans as Potassium Channel Activators:  Synthesis, Vasodilator Properties, and Multivariate Analysis
    作者:Raimund Mannhold、Gabriele Cruciani、Horst Weber、Horst Lemoine、Andrea Derix、Claus Weichel、Monica Clementi
    DOI:10.1021/jm981047m
    日期:1999.3.1
    During the last 10 years compounds have been discovered which can activate or block K-ATP channels. In particular, K channel activators (KCA)have been found to be smooth muscle relaxants with their main utility in hypertension and bronchodilation. In this paper we describe the synthesis of new KCA of the benzopyran type with a fixed 4-substituent and a systematic variation in the 6-position. The relaxant potency in rat aorta and trachea was used for biological characterization of the benzopyrans. In both biological test systems, they exhibit potency ranges of more than 3 log units. Structure-activity relationships are investigated by principal component analysis (PCA) and partial least-squares (PLS) analysis. Most striking outliers in an initial PLS analysis of the entire database were the unsubstituted 6-H compound 13 as well as 34 and 35. For the remaining set of 31 compounds, a S-component PLS model explains the variance in biological activity to 81% in the aortic and to 82% in the tracheal test system. 6-Substituents influence affinity by a direct (presumably dipolar) interaction with the receptor site. According to the 2D-plot of the partial PLS weights, a strong electronegativity as well as high values for the integy moment and for the heat of formation in water dominate the first component; low values for substituent size (as defined by globularity or surface) are in addition favorable for high potency. High lipophilicity and low minimum energies of interaction dominate the second component. Chemical descriptors for the biological potency of the test set in rat aorta and rat trachea are very similar according to the almost identical projection of the Y-variables onto the X-component space.
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