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环对甲基亚苄基丙二酸-2,2-丙二醇 | 15795-51-4

中文名称
环对甲基亚苄基丙二酸-2,2-丙二醇
中文别名
——
英文名称
2,2-dimethyl-5-(4-methylbenzylidene)-1,3-dioxane-4,6-dione
英文别名
2,2-dimethyl-5-[(4-methylphenyl)methylidene]-1,3-dioxane-4,6-dione
环对甲基亚苄基丙二酸-2,2-丙二醇化学式
CAS
15795-51-4
化学式
C14H14O4
mdl
——
分子量
246.263
InChiKey
LWXAMCVRKGTPEK-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

物化性质

  • 熔点:
    113-115℃
  • 沸点:
    481.4±45.0 °C(Predicted)
  • 密度:
    1.207

计算性质

  • 辛醇/水分配系数(LogP):
    3.1
  • 重原子数:
    18
  • 可旋转键数:
    1
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    0.29
  • 拓扑面积:
    52.6
  • 氢给体数:
    0
  • 氢受体数:
    4

安全信息

  • 海关编码:
    2934999090

SDS

SDS:18fb062f7c6bcd26a1d636c8dc66d506
查看

反应信息

  • 作为反应物:
    描述:
    环对甲基亚苄基丙二酸-2,2-丙二醇Oxone 作用下, 以 乙腈 为溶剂, 反应 1.0h, 以91%的产率得到对甲基苯甲醛
    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:
    描述:
    丙二酸环(亚)异丙酯对甲基苯甲醛1,3-二(4-哌啶基)丙烷 作用下, 以 neat (no solvent) 为溶剂, 以85%的产率得到环对甲基亚苄基丙二酸-2,2-丙二醇
    参考文献:
    名称:
    一种替代的,实用的,生态的方案,用于合成Meldrum酸的亚芳基类似物作为有用的中间体
    摘要:
    本文提出了一种用于催化Knoevenagel缩合反应的生态方案,该催化方案使用催化量的4,4'-三亚甲基二哌啶作为通用,高效,安全,可商购,廉价且可回收的有机催化剂,通过球磨工艺在室温下进行。对于活性亚甲基的Knoevenagel缩合,例如麦德鲁姆酸与各种芳基和杂芳基醛的探索和证明,本协议的范围。所开发的方案可以在环境友好的过程中将各种醛很好地转化为各自的Knoevenagel产品。此外,这种有效的方法显示了传统的诺文塔格尔缩合的合成优点与生态效益的结合以及简便的机械化学方法的便利性。
    DOI:
    10.1007/s11164-019-03796-2
点击查看最新优质反应信息

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
  • Uncatalyzed Knoevenagel Condensation in PEG-600 at Room Temperature
    作者:Babasaheb P. Bandgar、Balaji L. Korbad、Sachin A. Patil、Sunita B. Bandgar、Hemant V. Chavan、Baliram S. Hote
    DOI:10.1071/ch08106
    日期:——

    A rapid, efficient, and ecofriendly protocol has been developed for the Knoevenagel condensation of active methylene compounds with aromatic, aliphatic, conjugated and heteroaromatic aldehydes in polyethylene glycol-600 (PEG-600) with good to excellent yields.

    针对活性亚甲基化合物与芳香族、脂肪族、共轭族和杂芳香族醛类化合物在聚乙二醇-600(PEG-600)中的克诺文纳格尔缩合反应,我们开发出了一种快速、高效和环保的方案,并取得了良好甚至优异的收率。
  • 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<a href=https://www.molaid.com/MS_34644 target="_blank">水</a>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<a href=https://www.molaid.com/MS_30788 target="_blank">环己烷</a>)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<a href=https://www.molaid.com/MS_34644 target="_blank">水</a>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<a href=https://www.molaid.com/MS_34644 target="_blank">水</a>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<a href=https://www.molaid.com/fenzi/4464 target="_blank">化学</a>反应的一些特点。</div> </div> </li> <li class="feature-list-item"> <div class="content-title">Sc(OTf)<sub>3</sub>-Catalyzed Conjugate Allylation of Alkylidene Meldrum’s Acids</div> <div class="value"> <div class="value-text"> <span>作者:</span>Aaron M. Dumas、Eric Fillion </div> <div class="value-text"> <span>DOI:</span>10.1021/ol9003959 </div> <div class="value-text"> <span>日期:</span>2009.5.7 </div> <div class="value-text en"><span style='color:#ff0000'>Alkylidene</span> Meldrum’s <span style='color:#ff0000'>acids</span> are allylated in a <span style='color:#ff0000'>conjugate</span> fashion by allyltin nucleophiles under mild Sc(OTf)3-catalyzed conditions. The <span style='color:#ff0000'>addition</span> is functional group tolerant and reactions with nonracemic <span style='color:#ff0000'>alkylidenes</span> are <span style='color:#ff0000'>highly</span> <span style='color:#ff0000'>diastereoselective</span>. Allylation of <span style='color:#ff0000'>alkylidenes</span> derived from α-ketoesters yield all-carbon quaternary stereocenters.</div> <div class="value-text ch">在温和的Sc(OTf)3催化条件下,烯丙基<a href=https://www.molaid.com/MS_4128 target="_blank">锡</a>亲核试剂以共轭方式烯丙基亚烷基Meldrum的酸。该加成是官能团耐受的,并且与非外消旋亚烷基的反应是高度非对映选择性的。衍生自α-<a href=https://www.molaid.com/MS_272259 target="_blank">酮酸</a>酯的亚烷基的烯丙基化会产生全碳的季立体中心。</div> </div> </li> </ul> <a href="https://chem.molaid.com/material/detail?source=UserSourcePortal&id=310192dra300299257M0&inchikey=LWXAMCVRKGTPEK-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 icon-tongleihuahewu"></i>同类化合物</h3> <div class="compounds-list"> <a target="_blank" href="https://www.molaid.com/MS_9" class="compound-item" title="(βS)-β-氨基-4-(4-羟基苯氧基)-3,5-二碘苯甲丙醇">(βS)-β-氨基-4-(4-羟基苯氧基)-3,5-二碘苯甲丙醇</a> <a target="_blank" href="https://www.molaid.com/MS_23984432" 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