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L-rhamnal | 80483-21-2

中文名称
——
中文别名
——
英文名称
L-rhamnal
英文别名
(2S,3R,4R)-2-methyl-3,4-dihydro-2H-pyran-3,4-diol
L-rhamnal化学式
CAS
80483-21-2
化学式
C6H10O3
mdl
——
分子量
130.144
InChiKey
ZPKHLHZFXAQVMQ-JKUQZMGJSA-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):
    -0.5
  • 重原子数:
    9
  • 可旋转键数:
    0
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.67
  • 拓扑面积:
    49.7
  • 氢给体数:
    2
  • 氢受体数:
    3

反应信息

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文献信息

  • Selective mono-claisen rearrangement of carbohydrate glycals. A chemical consequence of the vinylogous anomeric effect
    作者:Dennis P. Curran、Young-Ger Suh
    DOI:10.1016/s0008-6215(00)90885-1
    日期:1987.12
    second apparently similar Claisen rearrangement required significantly higher temperatures in all cases. Thus, similar hydroxy groups were differentiated without resort to selective protection. A stereoelectronic rationale based on the newly-introduced vinylogous anomeric effect (VAE) is put forth to explain the accelerated Claisen rearrangements of these glycals. Molecular orbital and resonance descriptions
    碳水化合物糖的单克莱森重排被证明是合成上有用的并且在机理上有意义的反应。将过-O-乙酰基缩水甘油基叔丁基二甲基氯硅烷混合物加到二异丙基中,生成双(或三)烯酮甲硅烷乙缩醛,加热后,进行平滑的单克莱森重排以在甲基化后提供C-糖基化合物。在所有情况下,第二次明显相似的Claisen重排都需要明显更高的温度。因此,相似的羟基被区分而无需借助选择性保护。提出了基于新引入的乙烯基异头作用(VAE)的立体电子原理,以解释这些糖类的加速克莱森重排。包括了VAE的分子轨道和共振描述,VAE还用于合理化碳水化合物糖基态的构象偏好。通过单克莱森重排产生的C-糖基化合物适用于Pd(0)催化的烯丙基烷基化,从而提供了异常容易地进入假单酸环系统的通道。据报道,假单酸C的已知前体的九步合成。
  • Total synthesis of jadomycins A, B, and l-digitoxosyl-phenanthroviridin
    作者:Yusuke Akagi、Yuta Mori、Yudai Sato、Erika Iwasaki、Toshiya Komatsu
    DOI:10.1016/j.tetlet.2022.153919
    日期:2022.7
    We report the total synthesis of jadomycins A, B, and l-digitoxosyl-phenanthroviridin. 2-Aryl-5-hydroxy-1,4-naphthoquinones, which were synthesized utilizing a Pd-catalyzed direct arylation of 5-hydroxy-1,4-naphthoquinone with aryl iodide, were converted into jadomycin A through introduction of l-isoleucine, followed by oxidative cyclization. Mitsunobu reaction of jadomycin A with 3,4-di-O-acetyl-l-digitoxose
    我们报告了 jadomycins A、B 和 L-digitoxosyl-phenanthroviridin 的全合成。2-Aryl-5-hydroxy-1,4-naphthoquinones 是利用 Pd 催化的 5-hydroxy-1,4-naphthoquinone 与芳基的直接芳基化反应合成的,通过引入 L-异亮氨酸转化为 jadomycin A,然后进行氧化环化。由市售的 3,4-二-O-乙酰基-6-脱氧-L-葡糖醛制备的 3,4-二-O-乙酰基-L-洋地黄毒苷与 3,4-二-O-乙酰基-L-洋地黄糖的光信反应,然后脱乙酰化,得到了B. 此外,L-digitoxosyl-phenanthroviridin 的首次全合成通过 phenanthroviridin 苷元与 3,4- di- O-乙酰基-L-digitoxose 的 Mitsunobu 反应成功。
  • Practical and catalytic synthesis of 1,5-anhydrohex-1-en-3-uloses
    作者:Masahiko Hayashi、Kanako Yamada、Osamu Arikita
    DOI:10.1016/s0040-4020(99)00426-3
    日期:1999.7
    A practical and catalytic method for the preparation of 15-anhydrohex-1-en-3-uloses based on hydrogen transfer of D-glucals by catalytic amount of palladium complex in the presence of olefinic compounds such as ethylene and vinyl acetate has been disclosed. (C) 1999 Elsevier Science Ltd. All rights reserved.
  • Dehydrogenation of d-Glycals by Palladium Supported on Activated Charcoal under Ethylene Atmosphere: Synthesis of 1,5-Anhydrohex-1-en-3-uloses
    作者:Masahiko Hayashi
    DOI:10.1055/s-1999-3602
    日期:1999.11
  • On the synthesis of the 2,6-dideoxysugar l-digitoxose
    作者:Shannon C. Timmons、David L. Jakeman
    DOI:10.1016/j.carres.2007.09.012
    日期:2007.12
    As deoxysugars are integral components of many natural products, the development of efficient chemical and enzymatic routes to prepare these compounds is of particular interest. Herein, we report a comparison of several synthetic methodologies used to prepare protected derivatives of the 2,6-dideoxysugar L-digitoxose. A novel, stereoselective synthetic route to efficiently access methyl 4-O-tert-butyldimethylsilyl-2,6-dideoxy-3-O-trimethylsilyl-alpha-L-ribo-hexopyranoside in 35% yield over nine facile steps is described. (C) 2007 Elsevier Ltd. All rights reserved.
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