1--2-ethenylpyrrolidine | 190777-71-0

• 分子结构分类: 有机化合物 - 有机硫化合物 - 硫醚类
• 英文名称: 1--2-ethenylpyrrolidine
• 英文别名: 1-[chloro(phenylthio)acetyl]-2-ethenylpyrrolidine；2-chloro-1-[(2S)-2-ethenylpyrrolidin-1-yl]-2-phenylsulfanylethanone
• CAS: 190777-71-0
• 化学式: C₁₄H₁₆ClNOS
• 分子量: 281.806
• InChiKey: PVFXCLZQSWQJME-JTDNENJMSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  18
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  45.6
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1--2-ethenylpyrrolidine 在 镍 偶氮二异丁腈 、 三正丁基氢锡 作用下， 以 乙醇 、 苯 为溶剂， 反应 20.5h， 生成 1-methyl-3-oxo-hexahydropyrrolizine
  参考文献：
  名称：

  Carbamoylmethyl Radical Cyclization: Formal Synthesis of (-)-Trachelanthamidine.

  摘要：

  三丁基氢化锡介导的 (2S)-N-(α-氯乙酰基)-2-乙烯基吡咯烷 13a, b 和 15 与来自 (S)-prolinol 的双(苯硫基)乙酰同系物-14 的自由基环化反应，以高区域和非对映选择性的方式得到了 (1R, 7aS)-hexahyrdo1-methyl-3H-pyrrolizin-3-one (17) 及其衍生物 16a, b。这种自由基环化方法成功地应用于 (-)-trachelanthamidine 的正式全合成。

  DOI：

  10.1248/cpb.40.2308
• 作为产物：
  描述：

  N-(ethoxycarbonyl)prolinol 在 氢氧化钾 、 N-氯代丁二酰亚胺 、 pyridine-SO3 complex 、 一水合肼 、 三乙胺 作用下， 以 四氯化碳 、 乙醚 、 二氯甲烷 、 乙二醇 、 二甲基亚砜 为溶剂， 反应 11.5h， 生成 1--2-ethenylpyrrolidine
  参考文献：
  名称：

  Carbamoylmethyl Radical Cyclization: Formal Synthesis of (-)-Trachelanthamidine.

  摘要：

  三丁基氢化锡介导的 (2S)-N-(α-氯乙酰基)-2-乙烯基吡咯烷 13a, b 和 15 与来自 (S)-prolinol 的双(苯硫基)乙酰同系物-14 的自由基环化反应，以高区域和非对映选择性的方式得到了 (1R, 7aS)-hexahyrdo1-methyl-3H-pyrrolizin-3-one (17) 及其衍生物 16a, b。这种自由基环化方法成功地应用于 (-)-trachelanthamidine 的正式全合成。

  DOI：

  10.1248/cpb.40.2308

文献信息

• Ruthenium-catalyzed chlorine atom transfer cyclizations of N-allylic .alpha.-chloro-.alpha.-thioacetamides. Synthesis of (-)-trachelanthamidine and formal total synthesis of (.+-.)-haemanthidine and (.+-.)-pretazettine
  作者：Hiroyuki Ishibashi、Nahoko Uemura、Hiroshi Nakatani、Mika Okazaki、Tatsunori Sato、Nobuyuki Nakamura、Masazumi Ikeda

  DOI：10.1021/jo00061a005

  日期：1993.4

  A new method for the synthesis of five-membered lactams by ruthenium-catalyzed chlorine atom transfer cyclizations of N-allylic alpha-chloro-alpha-thioacetamides and the application of the method to the synthesis of the title alkaloids are described. A benzene solution of N-allyl-N-methyl-alpha-chloro-alpha-(phenylthio)acetamide (6) was heated at 140-degrees-C in the presence of RuCl2(PPh3)3 to give alpha-thio-beta-(chloromethyl)-substituted gamma-lactam 8 as a mixture of cis and trans isomers in a ratio of ca. 3:7. NH congener 11, however, gave no cyclization product. Heating chloro sulfides 18 and 19, prepared from L-prolinol, with RuCl2(PPh3)3 afforded bicyclic lactams 20 and 21, respectively. Treatment of 20 with cesium propanoate gave predominantly cyclopropane derivative 25, whereas S-methyl congener 21 provided esters 24 in good yield. Desulfurization of 24 with Raney nickel followed by reduction with LiAlH4 furnished (-)-trachelanthamidine (28). On the other hand, N-(cyclohex-2-en-1-yl) derivative 30, when heated with RuCl2(PPh3)3, afforded octahydroindol-2-ones 31a,b. The formation of 31a,b indicated that the intramolecular addition of the chloro sulfide of 30 to the olefinic bond proceeded in an anti-mode. By contrast, 2-phenyl-substituted derivative 38 gave syn-addition product 39. The difference between the modes of cyclization of 30 and 38 can be explained by assuming the intermediacy of radical 34. When R = H, the chlorine atom attacks the convex face of the fused bicyclic system of 34 to lead to 31a,b, whereas the steric bulk of the angular phenyl group (R = Ph) is apparently sufficient to direct the chlorine atom to the concave face. Heating chloro sulfide 48, prepared in a highly stereocontrolled manner from cyclohexene 42, with RuCl2(PPh3)3 afforded bicyclic lactam 49. Oxidation of 49 with m-CPBA followed by Pummerer rearrangement/hydrolysis gave keto lactam 51, which was dehydrochlorinated with DBU to give olefin 52. LiAlH4 reduction of 52 and acylation with pivaloyl chloride provided ester 54, a key intermediate in Martin's total synthesis of (+/-)-haemanthidine (41) and (+/-)-pretazettine (40).
• Ikeda, Masazumi; Teranishi, Hirotaka; Iwamura, Noriko, Heterocycles, 1997, vol. 45, # 5, p. 863 - 866
  作者：Ikeda, Masazumi、Teranishi, Hirotaka、Iwamura, Noriko、Ishibashi, Hiroyuki

  DOI：——

  日期：——