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(+)-ethyl (5S,7S)-5,7-bis(t-butyldimethylsiloxy)-8-bromonona-2E,8-dienoate | 137609-91-7

中文名称
——
中文别名
——
英文名称
(+)-ethyl (5S,7S)-5,7-bis(t-butyldimethylsiloxy)-8-bromonona-2E,8-dienoate
英文别名
ethyl (2E,5R,7S)-8-bromo-5,7-bis[[tert-butyl(dimethyl)silyl]oxy]nona-2,8-dienoate
(+)-ethyl (5S,7S)-5,7-bis(t-butyldimethylsiloxy)-8-bromonona-2E,8-dienoate化学式
CAS
137609-91-7
化学式
C23H45BrO4Si2
mdl
——
分子量
521.683
InChiKey
WOEXLMBTCPEPEA-YALNPVOHSA-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:
    471.9±45.0 °C(Predicted)
  • 密度:
    1.046±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    7.58
  • 重原子数:
    30
  • 可旋转键数:
    14
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.78
  • 拓扑面积:
    44.8
  • 氢给体数:
    0
  • 氢受体数:
    4

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

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文献信息

  • The cyclization route to the calcitriol A-ring: a formal synthesis of (+)-1α,25-dihydroxyvitamin D3
    作者:Chen Chen、David Crich
    DOI:10.1016/s0040-4020(01)88018-2
    日期:1993.9
    An efficient asymmetric synthesis of the A-ring of 1alpha,25-dihydroxyvitamin D3 from alpha-bromoacrolein is described. The key steps of the synthesis are the Evans type syn-selective asymmetric aldol reaction of bromoacrolein with the boron enolate of 3-chloroacetyl-4(S)-isopropyl oxazolidinone and ring closure by Heck type reaction of a vinyl bromide onto an alpha,beta-unsaturated ester in the exo-mode.
  • An efficient asymmetric synthesis of 1.alpha.,25-(OH)2 vitamin D3 A-ring synthon
    作者:Kazuo Nagasawa、Hideki Ishihara、Yoshiro Zako、Isao Shimizu
    DOI:10.1021/jo00061a028
    日期:1993.4
    Chiral synthesis of the A-ring synthon 3 of 1alpha,25-dihydroxyvitamin D3 (1a) based on palladium-catalyzed cyclization of 8-bromo-2,8-nonadienoates is described. Reaction of (E)-4b and (Z)-4d in the presence of Pd(OAc)2, PPh3, and K2CO3 gave (E)-3b and (Z)-3d, respectively. Optically active 4d was prepared from 24 by asymmetric aldol reaction using 31, which was cyclized to 3d. With further reactions, 1alpha,25-dihydroxyvitamin D3 (1a) was obtained.
  • Stereoselective synthesis of 1α-hydroxyvitamin D3 A-ring synthons by palladium-catalyzed cyclization
    作者:Kazuo Nagasawa、Yoshiro Zako、Hideki Ishihara、Isao Shimizu
    DOI:10.1016/s0040-4039(00)93501-9
    日期:1991.9
    Palladium-catalyzed cyclization of 8-bromo-2,8-nonadienoates proceeded stereoselectively to give 1-alpha-hydroxyvitamin D3 A-ring synthons in good yields.
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