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5,5-dimethoxy-1-pentyne | 105462-32-6

中文名称
——
中文别名
——
英文名称
5,5-dimethoxy-1-pentyne
英文别名
5,5-Dimethoxypent-1-yne
5,5-dimethoxy-1-pentyne化学式
CAS
105462-32-6
化学式
C7H12O2
mdl
——
分子量
128.171
InChiKey
MEDHMPCCHDGXIJ-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

  • 沸点:
    149.3±30.0 °C(Predicted)
  • 密度:
    0.909±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    1
  • 重原子数:
    9
  • 可旋转键数:
    4
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.71
  • 拓扑面积:
    18.5
  • 氢给体数:
    0
  • 氢受体数:
    2

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-甲基-2-丁烯醛5,5-dimethoxy-1-pentyne正丁基锂氯化铵 作用下, 以 四氢呋喃正己烷 为溶剂, 以2.3 g的产率得到9,9-dimethoxy-2-methylnon-2-en-5-yn-4-ol
    参考文献:
    名称:
    β-异戊烯酸酯作为环状反应的跳板
    摘要:
    由炔烃I与四正丁基碘化铵和路易斯酸生成的β-异戊烯酸酯II进行选择性单环或双环化反应,具体取决于路易斯酸促进剂。用TiCl 4处理得到环己烯基醇III,而BF 3 ·OEt 2处理得到奥沙德卡林IV。描述了两个环化反应的范围和局限性。
    DOI:
    10.1021/ol901721y
  • 作为产物:
    描述:
    4-pentyn-1-al原甲酸三甲酯对甲苯磺酸 作用下, 以 甲醇 为溶剂, 反应 2.0h, 生成 5,5-dimethoxy-1-pentyne
    参考文献:
    名称:
    β-异戊烯酸酯作为环状反应的跳板
    摘要:
    由炔烃I与四正丁基碘化铵和路易斯酸生成的β-异戊烯酸酯II进行选择性单环或双环化反应,具体取决于路易斯酸促进剂。用TiCl 4处理得到环己烯基醇III,而BF 3 ·OEt 2处理得到奥沙德卡林IV。描述了两个环化反应的范围和局限性。
    DOI:
    10.1021/ol901721y
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文献信息

  • Toward General Access to the <i>Aspidosperma</i>-Type Terpenoid Indole Alkaloids: Synthesis of the Key 3,3-Disubstituted Piperidones through Enantioselective Intramolecular Heck-Type Reaction of Chloroformamides
    作者:Yoshizumi Yasui、Hiroshi Takeda、Yoshiji Takemoto
    DOI:10.1248/cpb.56.1567
    日期:——
    An enantioselective intramolecular Heck-type reaction of chloroformamides has been developed for the synthesis of 3,3-disubstituted piperidones. The desired piperidone was formed in the presence of a palladium catalyst, an optically active phosphoramidite ligand, K3PO4 and Ag3PO4. The obtained piperidone was converted to epieburnamonine.
    开发了一种用于合成3,3-二取代哌啶酮的内型不对称分子内酰胺 Heck 反应。在催化剂、光学活性膦酰胺配体、K3PO4 和 Ag3PO4 存在下,生成了所需的哌啶酮。所得哌啶酮被转化为表厄巴马翁。
  • Perfume compositions and perfumed products which contain one or more
    申请人:Naarden International N.V.
    公开号:US04687599A1
    公开(公告)日:1987-08-18
    Perfume compositions and perfumed products containing as perfume component one or more 4,7-alkadienals with the formula ##STR1## wherein R represents a straight-chain or branched-chain alkyl or alkenyl group containing 2-5 carbon atoms and wherein the 4-5 double bond has the cis-configuration and the 7-8 double bond can have the cis or trans configuration.
    组合物和含有作为香成分的一种或多种4,7-醛类的香气产品,其化学式为##STR1##其中R代表含有2-5个原子的直链或支链烷基或基基团,其中4-5双键具有顺式构型,7-8双键可以具有顺式或反式构型。
  • Reagents for the determination of cerebral regional acetylcholinesterase activity
    申请人:DAIICHI PURE CHEMICALS CO., LTD
    公开号:US20020127180A1
    公开(公告)日:2002-09-12
    The present invention relates to N-alkylpiperidine derivatives represented by general formula (1) or (2); 1 wherein R 1 represents optionally fluorinated lower alkyl; R 2 represents lower alkyl; and R 3 represents alkenyl substituted at the 1-position with hydroxy, lower alkoxy, lower alkoxyalkyloxy, lower alkoxyalkyloxyalkyloxy, or lower alkanoyloxy and substituted at the end with radioactive iodine, or alkenyloxymethyl substituted at the end with a radioactive iodine reagent containing the same for assaying central local AchE activity; a method for assaying the central local AchE activity; and labeled precursors of the above compounds. After easily passing through the blood-brain barrier, these compounds are hydrolyzed specifically by AchE in the brain into alcohols, which are then captured by the brain. In contrast, alcohols formed outside the brain do not migrate into the brain. The compounds of the invention emit &ggr;-rays at an appropriate energy level. These characteristics make the compounds highly useful as tracers for SPECT in assaying the central AchE activity.
    本发明涉及由通式(1)或(2)表示的N-烷基哌啶生物;其中R1表示可选的化较低烷基;R2表示较低烷基;R3表示在1位被羟基,较低烷基,较低烷氧烷基,较低烷氧烷氧烷氧烷基或较低烷酰基取代的基,并在末端用放射性取代,或在末端用含有放射性试剂的甲基取代,用于测定中央局部AchE活性的方法;以及上述化合物的标记前体。这些化合物易于通过血脑屏障,特异性地被脑内AchE解成醇,然后被大脑捕获。相比之下,在大脑外形成的醇不会迁移到大脑中。本发明的化合物以适当的能量平发射γ射线,这些特性使得这些化合物在测定中央AchE活性的SPECT示踪剂中非常有用。
  • Perfume compositions and perfumed products which contain one or more 4,7-alkadienals as the essential substance
    申请人:NAARDEN INTERNATIONAL N.V.
    公开号:EP0173395A1
    公开(公告)日:1986-03-05
    Perfume compositions and perfumed products containing as perfume component one or more 4,7-alkadienals with the formula wherein R represents a straight-chain or branched-chain alkyl or alkenyl group containing 2-5 carbon atoms and wherein the 4-5 double bond has the cis-configuration and the 7-8 double bond can have the cis or trans configuration.
    含有一种或多种 4,7-烷二醛的香组合物和香产品,其配方中 R 代表含有 2-5 个原子的直链或支链烷基或基,其中 4-5 双键为顺式构型,7-8 双键可为顺式或反式构型。
  • REAGENTS FOR ASSAYING CENTRAL LOCAL ACETYLCHOLINESTERASE ACTIVITY
    申请人:DAIICHI PURE CHEMICALS CO. LTD.
    公开号:EP0989120A1
    公开(公告)日:2000-03-29
    The present invention relates to N-alkylpiperidine derivatives represented by general formula (1) or (2); wherein R1 represents optionally fluorinated lower alkyl; R2 represents lower alkyl; and R3 represents alkenyl substituted at the 1-position with hydroxy, lower alkoxy, lower alkoxyalkyloxy, lower alkoxyalkyloxyalkyloxy, or lower alkanoyloxy and substituted at the end with radioactive iodine, or alkenyloxymethyl substituted at the end with a radioactive iodine reagent containing the same for assaying central local AchE activity; a method for assaying the central local AchE activity; and labeled precursors of the above compounds. After easily passing through the blood-brain barrier, these compounds are hydrolyzed specifically by AchE in the brain into alcohols, which are then captured by the brain. In contrast, alcohols formed outside the brain do not migrate into the brain. The compounds of the invention emit γ-rays at an appropriate energy level. These characteristics make the compounds highly useful as tracers for SPECT in assaying the central AchE activity.
    本发明涉及通式(1)或(2)所代表的 N-烷基哌啶生物; 其中 R1 代表任选化的低级烷基;R2 代表低级烷基;R3 代表在 1 位被羟基、低级烷基、低级烷基烷基、低级烷基烷基或低级烷酰基取代并在末端被放射性取代的基,或在末端被含有相同的放射性试剂取代的甲基,用于测定中枢局部 AchE 活性;测定中枢局部 AchE 活性的方法;以及上述化合物的标记前体。这些化合物在轻松通过血脑屏障后,会被大脑中的 AchE 特异性解为醇,然后被大脑捕获。相反,在脑外形成的醇类不会迁移到脑内。本发明的化合物能以适当的能量平发射γ射线。这些特性使得本发明化合物在用作 SPECT 检测中枢 AchE 活性的示踪剂时非常有用。
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