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dimethyl 2-(2-bromoprop-2-enyl)-2-[(2S,3R,6S)-2-[[tert-butyl(dimethyl)silyl]oxymethyl]-6-prop-2-enoxy-3,6-dihydro-2H-pyran-3-yl]propanedioate | 174467-58-4

中文名称
——
中文别名
——
英文名称
dimethyl 2-(2-bromoprop-2-enyl)-2-[(2S,3R,6S)-2-[[tert-butyl(dimethyl)silyl]oxymethyl]-6-prop-2-enoxy-3,6-dihydro-2H-pyran-3-yl]propanedioate
英文别名
——
dimethyl 2-(2-bromoprop-2-enyl)-2-[(2S,3R,6S)-2-[[tert-butyl(dimethyl)silyl]oxymethyl]-6-prop-2-enoxy-3,6-dihydro-2H-pyran-3-yl]propanedioate化学式
CAS
174467-58-4
化学式
C23H37BrO7Si
mdl
——
分子量
533.532
InChiKey
IORZFHVLAHFAHI-OTWHNJEPSA-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):
    4.74
  • 重原子数:
    32
  • 可旋转键数:
    14
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.65
  • 拓扑面积:
    80.3
  • 氢给体数:
    0
  • 氢受体数:
    7

反应信息

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文献信息

  • Palladium-Mediated Cyclization on Carbohydrate Templates. 2. Synthesis of Enantiopure Tricyclic Compounds
    作者:Jean-Flaubert Nguefack、Véronique Bolitt、Denis Sinou
    DOI:10.1021/jo970817j
    日期:1997.10.1
    The bromo substituted unsaturated carbohydrates 3a-f were prepared from 3,4,6-tri-O-acetyl-D-glucal by Ferrier reaction with the appropriate allylic or homoallylic alcohol, deacetylation followed by monosilylation with TBDMSCl, and then alkylation with BrCH2CBr=CH2. The N- and C-analogues 4a,b were synthesized by palladium alkylation of the intermediate carbonate with TsNHCH2CBr=CH2 and (MeO2C)(2)CHCH2CBr=CH2, respectively. Treatment of the unsaturated carbohydrates 3a, 4a, and 4b with a catalytic amount of Pd(OAc)(2)/PPh3 in CH3CN/H2O, in the presence of Bu4NHSO4 and NEt3, afforded the tricyclic compounds 5, 6, and 7, respectively. Under the same conditions, the analogue tricyclic compounds 8, 9, and 10 were formed starting from 3b-d. In the case of compounds 3e and 3f, the formation of the bicyclic glucal 11 via an already described beta-alkoxyelimination was only observed. Moreover, trapping of the sigma-alkylpalladium intermediate obtained from 3e with an external nucleophile yielded the 2-deoxy carbohydrate 12 and the 2,3-unsaturated sugar 13, using respectively sodium formate and sodium tetraphenylborate.
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