3-phenylcholest-2-en-5α-ol | 157920-63-3

• 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: 3-phenylcholest-2-en-5α-ol
• 英文别名: 3-phenyl-2-cholesten-5α-ol；(5R,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-3-phenyl-1,4,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-5-ol
• CAS: 157920-63-3
• 化学式: C₃₃H₅₀O
• 分子量: 462.759
• InChiKey: AELPWKCRNOECPS-GDAOSRGESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  10
• 重原子数：
  34
• 可旋转键数：
  6
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.76
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  3-phenylcholest-2-en-5α-ol 在 碘苯二乙酸 、 碘 作用下， 以 环己烷 为溶剂， 反应 1.5h， 以23%的产率得到3-phenyl-5,10-secocholesta-1(10),2-dien-5-one
  参考文献：
  名称：

  Fragmentation of Alkoxy Radicals: Tandem .beta.-Fragmentation-Cycloperoxyiodination Reaction

  摘要：

  The steroidal alcohols 2-cholesten-5 alpha-ol (3), 3-phenyl-2-cholesten-5 alpha-ol (4), and 3 alpha H-2'-oxofuro-[2,3]cholestan-5 alpha-ol (5) were prepared in order to test a new tandem beta-fragmentation-cycloperoxyiodination reaction. The alkoxy radicals generated by irradiation of these alcohols with visible light in the presence of (diacetoxyiodo)benzene, I-2, and molecular oxygen undergo a beta-fragmentation reaction with subsequent peroxidation of the C-radical formed. This peroxy radical is added to conveniently positioned double bonds to give 10-membered cyclic ketones possessing a 1,2-dioxolane group.

  DOI：

  10.1021/jo00095a012
• 作为产物：
  描述：

  cholestane-3β,5α-diol 在 对甲苯磺酸 、 pyridinium chlorochromate 作用下， 以 乙醚 、 二氯甲烷 、 苯 为溶剂， 反应 144.5h， 生成 3-phenylcholest-2-en-5α-ol
  参考文献：
  名称：

  Fragmentation of Alkoxy Radicals: Tandem .beta.-Fragmentation-Cycloperoxyiodination Reaction

  摘要：

  The steroidal alcohols 2-cholesten-5 alpha-ol (3), 3-phenyl-2-cholesten-5 alpha-ol (4), and 3 alpha H-2'-oxofuro-[2,3]cholestan-5 alpha-ol (5) were prepared in order to test a new tandem beta-fragmentation-cycloperoxyiodination reaction. The alkoxy radicals generated by irradiation of these alcohols with visible light in the presence of (diacetoxyiodo)benzene, I-2, and molecular oxygen undergo a beta-fragmentation reaction with subsequent peroxidation of the C-radical formed. This peroxy radical is added to conveniently positioned double bonds to give 10-membered cyclic ketones possessing a 1,2-dioxolane group.

  DOI：

  10.1021/jo00095a012

文献信息

• Tandem β-Fragmentation−Hydrogen Abstraction Reaction of Alkoxy Radicals in Steroidal Systems
  作者：Alicia Boto、Raimundo Freire、Rosendo Hernández、Ernesto Suárez、María S. Rodríguez

  DOI：10.1021/jo962252h

  日期：1997.5.1

  have been prepared in order to test a new tandem beta-fragmentation-hydrogen abstraction reaction. The alkoxy radicals generated by irradiation of these alcohols with visible light in the presence of (diacetoxyiodo)benzene, iodine, and molecular oxygen undergo a beta-fragmentation reaction followed by peroxidation of the C-radical formed. The peroxy radical reacts further with iodine to give an alkoxy

  多种叔或半缩醛甾醇，2-羟基-3,4-二or-2,3-仲胆甾醇-5-酮2,5-半缩醛（1），2beta，3beta-dihydro-3'H-cyclopropa [2 ，3]-胆甾烷5alpha-ol（7），3beta-苯基-5alpha-羟基胆甾烷-2-1（10），5alpha-羟基胆甾烷-3-1（15），3beta，5alpha-二羟基胆甾聚糖-7-one 3-为了测试新的串联β-片段化-氢提取反应，已经制备了乙酸酯（21）和4,4-二甲基-19-羟基-5α-胆甾醇-3-一19,3-半缩醛（27）。在（二乙酰氧基碘）苯，碘和分子氧的存在下，用可见光照射这些醇而生成的烷氧基进行β-片段化反应，然后对所形成的C-自由基进行过氧化。过氧自由基进一步与碘反应，生成烷氧基和碘氧基（IO（*））。
• Boto Alicia, Betancor Carmen, Prange Thierry, Suarez Ernesto, J. Org. Chem, 59 (1994) N 16, S 4393-4401
  作者：Boto Alicia, Betancor Carmen, Prange Thierry, Suarez Ernesto

  DOI：——

  日期：——
• Fragmentation of Alkoxy Radicals: Tandem .beta.-Fragmentation-Cycloperoxyiodination Reaction
  作者：Alicia Boto、Carmen Betancor、Thierry Prange、Ernesto Suarez

  DOI：10.1021/jo00095a012

  日期：1994.8

  The steroidal alcohols 2-cholesten-5 alpha-ol (3), 3-phenyl-2-cholesten-5 alpha-ol (4), and 3 alpha H-2'-oxofuro-[2,3]cholestan-5 alpha-ol (5) were prepared in order to test a new tandem beta-fragmentation-cycloperoxyiodination reaction. The alkoxy radicals generated by irradiation of these alcohols with visible light in the presence of (diacetoxyiodo)benzene, I-2, and molecular oxygen undergo a beta-fragmentation reaction with subsequent peroxidation of the C-radical formed. This peroxy radical is added to conveniently positioned double bonds to give 10-membered cyclic ketones possessing a 1,2-dioxolane group.