(5R,8R,9S,10S,13R,14S,17R)-10,13-Dimethyl-17-((R)-6-methylheptan-2-yl)hexadecahydro-1H-cyclopenta[a]phenanthrene-3-d | 54482-38-1

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 类固醇和类固醇衍生物
• 英文名称: (5R,8R,9S,10S,13R,14S,17R)-10,13-Dimethyl-17-((R)-6-methylheptan-2-yl)hexadecahydro-1H-cyclopenta[a]phenanthrene-3-d
• 英文别名: 3β-deuteriocholestane；3β-deuterio-5α-cholestane；3β-Deuterio-5α-cholestan
• CAS: 54482-38-1
• 化学式: C₂₇H₄₈
• 分子量: 373.67
• InChiKey: XIIAYQZJNBULGD-NTFROVDMSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.5
• 重原子数：
  27.0
• 可旋转键数：
  5.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为产物：
  描述：

  3α-deuterio-3β-(toluene-4-sulfonyloxy)-5α-cholestane 在 lithium aluminium tetrahydride 、 乙醚 作用下， 生成 (5R,8R,9S,10S,13R,14S,17R)-10,13-Dimethyl-17-((R)-6-methylheptan-2-yl)hexadecahydro-1H-cyclopenta[a]phenanthrene-3-d
  参考文献：
  名称：

  Spectral and Stereochemical Studies with Deuterated Cyclohexanes¹

  摘要：

  DOI：

  10.1021/ja01600a063

文献信息

• 一种卤化物氢解的方法
  申请人：中国科学院上海有机化学研究所

  公开号：CN112142544A

  公开（公告）日：2020-12-29

  本发明公开了一种卤化物氢解的方法。本发明公开了一种如式I所示的化合物的制备方法，其包括以下步骤：在极性非质子型溶剂中，将锌、H2O与如式II所示的化合物进行如下所示的反应即可；其中，X为卤素；Y为‑CHR1R2或R3；所述的 中的氢以其天然丰度或非天然丰度的形式存在。该制备方法可以以简单温和的反应体系，简捷高效地实现卤化物氢解，而且还具有良好的官能团兼容性和底物普适性。
• Dehalogenative Deuteration of Unactivated Alkyl Halides Using D₂O as the Deuterium Source
  作者：Aiyou Xia、Xin Xie、Xiaoping Hu、Wei Xu、Yuanhong Liu

  DOI：10.1021/acs.joc.9b02026

  日期：2019.11.1

  The general dehalogenation of alkyl halides with zinc using D2O or H2O as a deuterium or hydrogen donor has been developed. The method provides an efficient and economic protocol for deuterium-labeled derivatives with a wide substrate scope under mild reaction conditions. Mechanistic studies indicated that a radical process is involved for the formation of organozinc intermediates. The facile hydrolysis

  已经开发出使用D 2 O或H 2 O作为氘或氢供体的锌与烷基卤化物的一般脱卤。该方法在温和的反应条件下为底物范围较宽的氘标记衍生物提供了一种高效经济的方法。机理研究表明，自由基过程涉及有机锌中间体的形成。有机锌中间体的容易水解为该转化提供了驱动力。
• Desulfurization with nickel and cobalt boride: scope, selectivity, stereochemistry, and deuterium-labeling studies
  作者：Thomas G. Back、Denise L. Baron、Kexin Yang

  DOI：10.1021/jo00061a011

  日期：1993.4

  A variety of organosulfur compounds containing alkylthio and arylthio groups underwent reductive desulfurization under notably mild conditions when treated with nickel boride, generated in situ from nickel chloride hexahydrate and sodium borohydride in methanol-THF(3:1). Phenyl,chloro, and ester groups are not reduced under these conditions, while iodo, bromo, nitrile, aldehyde, ketone, cyclopropane, and olefinic functions are reduced either completely or partially. Deuterium-labeling studies indicate that the hydrogen that is incorporated into the product originates from both the sodium borohydride and the protic solvent, suggesting the intermediacy of dihydrogen. The epimers 3alpha- and 3beta-(phenylthio)cholestane afforded 3alpha- and 3beta-deuteriocholestane, respectively, demonstrating that the reaction proceeds with retention of configuration. The method may thus be employed for the stereospecific preparation of deuterated products from organosulfur compounds. Arguments are presented in support of a tentative mechanism involving an oxidative addition-reductive elimination sequence via a nickel hydride intermediate.