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7-Hydroxymethyl-5-methoxy-chroman-8-carbaldehyde | 151697-32-4

中文名称
——
中文别名
——
英文名称
7-Hydroxymethyl-5-methoxy-chroman-8-carbaldehyde
英文别名
7-(hydroxymethyl)-5-methoxy-3,4-dihydro-2H-chromene-8-carbaldehyde
7-Hydroxymethyl-5-methoxy-chroman-8-carbaldehyde化学式
CAS
151697-32-4
化学式
C12H14O4
mdl
——
分子量
222.241
InChiKey
URKAYNNTVQBMLK-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):
    0.8
  • 重原子数:
    16
  • 可旋转键数:
    3
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    0.42
  • 拓扑面积:
    55.8
  • 氢给体数:
    1
  • 氢受体数:
    4

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
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

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文献信息

  • Alkoxy and cyclic ether oxygens exhibit disparate capabilities for directing ortho lithiation
    作者:Leo A. Paquette、Matthias M. Schulze
    DOI:10.1016/s0040-4039(00)73670-7
    日期:1993.5
    Metalation of 4a and 4b with n-butyllithium under kinetically controlled conditions (C6H6, 20 °C or Et2O, TMEDA (2 equiv), 20 °C) leads to preferred deprotonation α to the heterocyclic ring.
    的金属化图4a和图4b与Ñ动力学控制条件下正丁基锂(C 6 H ^ 6,20℃或Et 2 O,TMEDA(2当量),20℃)导致优选的脱质子化α到杂环。
  • Pequette, Leo A.; Schulze, Matthias M., Heterocycles, 1993, vol. 35, # 2, p. 585 - 589
    作者:Pequette, Leo A.、Schulze, Matthias M.
    DOI:——
    日期:——
  • Relevance of Conformational Constraints to the Regioselective Lithiation of Aromatic Diethers. Application to the Convenient Construction of the DEF Tricyclic Subunit of the Austalides
    作者:Leo A. Paquette、Matthias M. Schulze、David G. Bolin
    DOI:10.1021/jo00087a018
    日期:1994.4
    The lithiation of 29 and 30 is shown to occur at all three sites with a dissimilar kinetic preference. For the dihydrofuran, reaction at the proton labeled H-beta, operates predominantly; in the dihydropyran example, H-alpha is the favored site of deprotonation. These protons represent those that are the most deshielded in the respective H-1 NMR spectra. The same is true for 9 and 19, both of which undergo metalation adjacent to the ring oxygen. No crossover in regioselectivity is observed, presumably because the methoxy substituent is sterically precluded from rotating freely. Mixed complexes (dimers, etc.) or mixed aggregates in low equilibrium concentration are key to understanding the acidification phenomenon of ortho hydrogens. As a consequence of the dominance of regiocontrol by the ring oxygen in 9, a convenient means has been developed for elaboration of the tricyclic eastern sector of the austalide mycotoxins.
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