2α.3β-dibromo-5α-cholestane | 1175-09-3

• 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: 2α.3β-dibromo-5α-cholestane
• 英文别名: 2α.3β-Dibrom-5α-cholestan；2α,3β-Dibrom-5α-cholestan；2α,3β-Dibrom-cholestan；2α,3β-Dibromcholestan；2β,3α-Dibromcholestan；(2R,3R,5S,8R,9S,10S,13R,14S,17R)-2,3-dibromo-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene
• CAS: 1175-09-3
• 化学式: C₂₇H₄₆Br₂
• 分子量: 530.47
• InChiKey: KFRQNXHOVDCRIV-RUXQDQFYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  11.3
• 重原子数：
  29
• 可旋转键数：
  5
• 环数：
  4.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  2α.3β-dibromo-5α-cholestane 、 溶剂黄146 、 alkaline earth salt of/the/ methylsulfuric acid 生成 cholest-2-ene
  参考文献：
  名称：

  邻居参与的一些构象方面

  摘要：

  DOI：

  10.1039/jr9540004284
• 作为产物：
  描述：

  2α-bromo-5α-cholestan-3-one 在 四氯化碳 、 sodium tetrahydroborate 、 乙醇 、 溴 作用下， 生成 2α.3β-dibromo-5α-cholestane
  参考文献：
  名称：

  邻居参与的一些构象方面

  摘要：

  DOI：

  10.1039/jr9540004284

文献信息

• Carman,R.M.; Venzke,B.N., Australian Journal of Chemistry, 1971, vol. 24, p. 1905 - 1917
  作者：Carman,R.M.、Venzke,B.N.

  DOI：——

  日期：——
• The Action of Triphenylphosphine Dibromide on Sterol and Bile Acid Derivatives¹
  作者：Daniel Levy、Robert Stevenson

  DOI：10.1021/jo01021a045

  日期：1965.10
• The Brominative Decarboxylation of Optically Active Silver trans-1,2-Cyclohexanedicarboxylate
  作者：Douglas E. Applequist、Newton D. Werner

  DOI：10.1021/jo01036a010

  日期：1963.1
• Kasal,A., Collection of Czechoslovak Chemical Communications, 1976, vol. 41, p. 140 - 150
  作者：Kasal,A.

  DOI：——

  日期：——
• Analysis of the El Niño Effect on the Discharge of Selected Rivers in the Asia-Pacific Region
  作者：Daniel Cluis、Claude Laberge

  DOI：10.1080/02508060208687002

  日期：2002.6

  Discharge records originating from 78 rivers within the Asia-Pacific region are used to assess a possible relationship between a temporal El Nino-Southern Oscillation (ENSO) Index and regional discharges of rivers. The rivers selected have long monthly discharge series and are geographically distributed throughout the whole region. Analyses of variance are used to identify the sub-regions most teleconnected to the ENSO signal. Composite analyses show the temporal patterns of the relationships between river discharge and the ENSO signal and the possible presence of a time lagged relationship. The analyses show that the rivers of the Oceania-Pacific region are the most affected and that a majority of rivers show a similar temporal pattern, thus allowing the construction of a regional composite streamflow index. The temporal patterns of the identified relationships demonstrate the possibility of forecasting the occurrence of abnormally high or low flows (floods/droughts) months ahead of time.