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5-(4-N,N-dimethylaminobenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione | 15795-57-0

中文名称
——
中文别名
——
英文名称
5-(4-N,N-dimethylaminobenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione
英文别名
5-(4-(dimethylamino)benzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione;5-[[4-(dimethylamino)phenyl]methylidene]-2,2-dimethyl-1,3-dioxane-4,6-dione
5-(4-N,N-dimethylaminobenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione化学式
CAS
15795-57-0
化学式
C15H17NO4
mdl
MFCD00106878
分子量
275.304
InChiKey
AKJKGSPZKUCMLG-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):
    2.9
  • 重原子数:
    20
  • 可旋转键数:
    2
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    0.33
  • 拓扑面积:
    55.8
  • 氢给体数:
    0
  • 氢受体数:
    5

SDS

SDS:e6d258dd948fc1b3e5e5d2f1ffd6a999
查看

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:
    描述:
    5-(4-N,N-dimethylaminobenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dioneOxone 作用下, 以 乙腈 为溶剂, 反应 1.0h, 以89%的产率得到对二甲氨基苯甲醛
    参考文献:
    名称:
    无过渡金属的权宜方法可用于芳基芳烃Meldrum的酸和丙二腈衍生物的C C键裂解
    摘要:
    讨论了一种用于无电子烯烃(例如亚芳基迈德鲁姆酸和丙二腈衍生物)的C C键裂解的无过渡金属的简便方法。这些化合物的C C键在高温下以高收率裂解为苯甲酸。最重要的是,与过硫酸氢钾CH 3 CN / H 2 O不连到45℃或米-CPBA在DCM或次氯酸钠2的THF / H 2 O或PIDA在THF中在室温下布置的苯甲醛衍生物选择性地在良好的产率。
    DOI:
    10.1016/j.tet.2019.130573
  • 作为产物:
    参考文献:
    名称:
    二芳基和三芳基甲基离子作为探针从5-苄基化的麦德鲁姆酸衍生的碳离子的环境反应性
    摘要:
    通过UV / Vis研究了由5-苄基取代的麦德鲁姆酸1-H(Meldrum的酸= 2,2-二甲基-1,3-二恶烷-4,6-二酮)衍生的碳正离子与碳负离子1的反应动力学。光谱方法。苯甲基阳离子Ar 2 CH +仅添加到Meldrum酸部分的C-5中。由于这些反应在DMSO中的二阶速率常数(k C)遵循线性自由能关系lg  k = s N(N + E),因此碳负离子的亲核试剂特异性反应性参数N和s N为1可以确定。相反,三苯甲基阳离子Ar 3 C +反应不同。虽然低亲电性(E <−2)的三苯乙稀离子通过速率确定β-氢化物抽象而与1反应,但更多的路易斯酸性三苯乙稀离子最初在1的羰基氧上反应形成三苯甲基烯醇盐,随后再离子化并最终生成三芳基甲烷和通过氢化物转移生成5-亚苄基Meldrum酸。
    DOI:
    10.1002/chem.201403161
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文献信息

  • Microwave‐associate synthesis of Co <sub>3</sub> O <sub>4</sub> nanoparticles as an effcient nanocatalyst for the synthesis of arylidene barbituric and Meldrum's acid derivatives in green media
    作者:Mahdieh Yahyazadehfar、Enayatollah Sheikhhosseini、Sayed Ali Ahmadi、Dadkhoda Ghazanfari
    DOI:10.1002/aoc.5100
    日期:——
    conditions using controlled, effective, and facile microwave method. The final nanostructures were characterized by SEM, XRD, and TEM analyses. The products had a small size distribution, homogeneous morphology, and crystallographic structures associated with the formation of Co3O4 nanostructures. Moreover, EDS mapping analysis confirmed the existence of Co and O elements in the final structure, and the
    在这项研究中,使用可控,有效且简便的微波方法,在环境适宜的条件下构建了Co 3 O 4纳米催化剂。通过SEM,XRD和TEM分析来表征最终的纳米结构。产物具有较小的尺寸分布,均匀的形态和与Co 3 O 4形成相关的晶体结构纳米结构。此外,EDS作图分析证实了最终结构中存在Co和O元素,并通过VSM研究了样品的磁性。此纳米结构中的催化方法中的应用进一步检查,结果表明,它可作为一种新的候选为亚芳基巴比妥和麦德鲁姆的合成, s至由巴比妥和麦德鲁姆醛的Knoevenagel缩合酸, S酸性中水性介质。这些纳米催化剂的高产率将由纳米结构的性质以及本研究开发的实验程序来证明,这影响了产物的理化特性。
  • Nickel nanoparticles catalyzed chemoselective Knoevenagel condensation of Meldrum’s acid and tandem enol lactonizations via cascade cyclization sequence
    作者:Jitender M. Khurana、Kanika Vij
    DOI:10.1016/j.tetlet.2011.05.032
    日期:2011.7
    A novel protocol has been reported wherein, polyethylene glycol (PEG) stabilized nickel nanoparticles have been used as catalyst for chemoselective Knoevenagel condensation of aromatic aldehydes and Meldrum’s acid to give 5-arylidene Meldrum’s acid which underwent tandem enol lactonization by Michael addition/cyclization sequence with active methylene compounds in the presence of Ni nanoparticles to
    据报导了一种新的方案,其中,用聚乙二醇(PEG)稳定的镍纳米颗粒作为催化剂,用于芳香醛和Meldrum's酸的化学选择性Knoevenagel缩合反应,生成5芳基的Meldrum's酸,并通过Michael加成/环化顺序进行了串联烯醇内酯化。 Ni纳米颗粒的存在下,该活性亚甲基化合物得到相应的烯醇内酯衍生物。
  • Bentonite Catalyzed an Efficient and Green Synthesis of Arylidene Meldrum's Acid Derivatives in Aqueous Media
    作者:Mahdieh Yahyazadehfar、Sayed Ali Ahmadi、Enayatollah Sheikhhosseini、Dadkhoda Ghazanfari
    DOI:10.2174/1570178617999200807155325
    日期:2021.7
    <p>In the present paper, a simple, highly efficient, and environmentally friendly protocol was proposed for the Knoevenagel condensation reaction of aromatic aldehydes using Meldrum’s acid (2,2-dimethyl-4,6-dioxo-1,3-dioxane) with bentonite as an available non-toxic mineral catalyst exposed to aqueous media under green conditions. Together with the substitution protocol of electron-donating or -withdrawing groups, all reactions were finalized from 5 to 120 min in water at 90°C. With regard to such reactions, the purification of columns on products was not a requirement. Considering the environmental aspect, use of water as a green solvent, utilization of a reusable catalyst, simple work-up process and steps, as well as rapid reaction times were taken into account as some characteristics of these chemical reactions.</p></sec></div> <div class="value-text ch">在本文中,我们提出了一种简单、高效且环保的协议,用于在水相介质下进行芳香醛的Knoevenagel缩合反应。该反应使用Meldrum酸(2,2-二甲基-4,6-二氧杂-1,3-二氧环己烷)作为可用的非有毒矿物催化剂,并与膨润土相结合。在90°C的水中,所有反应在5到120分钟内完成,无需对产物进行柱层析纯化。考虑到环境因素,使用水作为绿色溶剂,利用可重复使用的催化剂,简化了工作过程和步骤,以及快速的反应时间,都是这些化学反应的一些特点。</div> </div> </li> <li class="feature-list-item"> <div class="content-title">Process for the preparation of carboxylic acids and derivatives of them</div> <div class="value"> <div class="value-text"> <span>申请人:</span>Biogal Gyogyszergrar </div> <div class="value-text"> <span>公开号:</span>US05350872A1 </div> <div class="value-text"> <span>公开(公告)日:</span>1994-09-27 </div> <div class="value-text en">The subject matter of the invention is a process for the preparation of carboxylic acids and derivatives of them of the general formula ##STR1## wherein R means hydrogen, or a C.sub.1-4 alkyl or a (C.sub.1-5 alkoxy)carbonyl group, R.sub.1 is as defined in claim 1, R.sub.7 stands for hydrogen or a C.sub.1-7 alkyl group and R.sub.8 means hydrogen or a carboxyl group, by reacting a 1,3-dioxane-4,6-dione derivative of the general formula ##STR2## wherein R.sub.9 stands for a C.sub.1-4 alkyl group or a phenyl group, optionally monosubstituted by halogen and R.sub.10 stands for hydrogen or a C.sub.1-5 alkyl group or R.sub.9 and R.sub.10 together form a pentamethylene group, and an aldehyde or ketone of the general formula ##STR3## in the presence of formic acid.</div> <div class="value-text ch">本发明的主题是一种用于制备通式##STR1##的羧酸及其衍生物的过程,其中R表示氢,或C.sub.1-4烷基或(C.sub.1-5烷氧基)甲酰基,R.sub.1如权利要求1中定义,R.sub.7代表氢或C.sub.1-7烷基团,R.sub.8表示氢或羧酸基团,通过将通式##STR2##的1,3-二氧杂环己烷-4,6-二酮衍生物与通式##STR3##的醛或酮在甲酸存在下反应。其中R.sub.9代表C.sub.1-4烷基或苯基,可选地被卤素单取代,R.sub.10代表氢或C.sub.1-5烷基,或R.sub.9和R.sub.10共同形成一个五亚甲基基团。</div> </div> </li> <li class="feature-list-item"> <div class="content-title">与Aβ斑块和神经纤维缠结具有亲和力的化合 物及制备方法</div> <div class="value"> <div class="value-text"> <span>申请人:</span>北京师范大学 </div> <div class="value-text"> <span>公开号:</span>CN104140381B </div> <div class="value-text"> <span>公开(公告)日:</span>2018-04-13 </div> <div class="value-text en"></div> <div class="value-text ch">本发明提供一种与Aβ斑块和神经纤维缠结具有高亲和力的化合物,所述化合物的结构通式如式(I)所示:其中,W为苯并六元芳环或六元芳环;R1和R2独立的表示CH3、11CH3、芳基、杂芳基或(CH2)n'R4,其中,n’为2‑6,R4为H、OH、F或Cl,其中F为18F或19F,R3为或n为0‑5,且碳碳双键均为反式双键。本发明还提供所述化合物的制备方法及应用。该类化合物可直接作为检测体内或组织样本中淀粉样蛋白沉积物和神经纤维缠结的近红外探针,当用于核医学显像时,需使用合适的放射性同位素对其进行标记。该类化合物特别适合用于诊断包括阿尔茨海默病在内的患有淀粉样蛋白沉积和神经纤维缠结疾病的患者。</div> </div> </li> </ul> <a href="https://chem.molaid.com/material/detail?source=UserSourcePortal&id=3101927yb4121d2749N0&inchikey=AKJKGSPZKUCMLG-UHFFFAOYSA-N" target="_blank" rel="nofollow" class="view-more">查看更多</a> </div> <div class="module" id="tongleihuahewu"> <h3 class="module-title"><i class="iconfont 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