1-(8-氮杂双环[3.2.1]辛-2-烯-2-基)乙酮 | 135682-90-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 1-(8-氮杂双环[3.2.1]辛-2-烯-2-基)乙酮
• 英文名称: 2-acetyl-8-azabicyclo<3.2.1>octa-2-ene
• 英文别名: 2-Acetyl-8-azabicyclo<3.2.1>oct-2-ene；1-(8-Azabicyclo[3.2.1]oct-2-en-2-yl)ethanone
• CAS: 135682-90-5
• 化学式: C₉H₁₃NO
• 分子量: 151.208
• InChiKey: DYSCFNKIZDWMSK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.5
• 重原子数：
  11
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  29.1
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-(8-氮杂双环[3.2.1]辛-2-烯-2-基)乙酮 在 copper bromide-dimethyl sulfide 、 sodium cyanoborohydride 作用下， 以 乙醚 、 水 、 乙腈 为溶剂， 反应 4.25h， 生成 2β-acetyl-8-methyl-3β-(2-naphthyl)-8-azabicyclo<3.2.1>octane
  参考文献：
  名称：

  Synthesis of 2.beta.-Acyl-3.beta.-aryl-8-azabicyclo[3.2.1]octanes and Their Binding Affinities at Dopamine and Serotonin Transport Sites in Rat Striatum and Frontal Cortex

  摘要：

  A novel entry to tropane analogs of cocaine was developed on the basis of the reaction of rhodium-stabilized vinylcarbenoids with pyrroles. These analogs were tested:in binding to dopamine and serotonin (5-HT) transporters in:membranes from rat striatum and frontal cortex. In all the analogs, the aryl group at the 3-position was directly bound to the tropane ring (as in WIN-35,428), and methyl or ethyl ketone moieties were present at the a-position instead of the typical ester group. The series of analogs containing a 2-naphthyl group at the 3-position were most potent, with K-i values < 1 nM in binding to both dopamine and 5-HT transporters. Although the unsubstituted 2-naphthyl analog was nonselective at dopamine and 5-HT transport sites, other compounds:were selective for either site. In general, compounds with relatively small substituents on the aromatic moiety (such as p-methyl or p-fluoro) were relatively selective for the dopamine transporters, while a p-isopropylphenyl derivative was selective:for the 5-HT transport sites. This latter compound represents the first N-methyltropane derivative specific for 5-HT transporters. Resolution of two of the most significant analogs was achieved by HPLC on a chiral stationary phase; the active enantiomer of a 2-naphthyl analog exhibited K-i values of <0.1 nM at both dopamine and 5-HT transporter sites.

  DOI：

  10.1021/jm00035a005
• 作为产物：
  描述：

  3-Diazo-4-penten-2-one 在 RhCl(PPh₃)3 rhodium(II) octanoate 、 四丁基氟化铵 、 氢气 作用下， 以 四氢呋喃 、 乙醇 、 甲苯 为溶剂， 25.0 ℃ 、310.27 kPa 条件下， 反应 36.0h， 生成 1-(8-氮杂双环[3.2.1]辛-2-烯-2-基)乙酮
  参考文献：
  名称：

  Synthesis of (.+-.)-ferruginine and (.+-.)-anhydroecgonine methyl-ester by a tandem cyclopropanation/Cope rearrangement

  摘要：

  Rhodium(II) acetate catalyzed decomposition of vinyldiazomethanes in the presence of N-(alkoxycarbonyl)pyrroles led to the synthesis of 8-azabicyclo[3.2.1]octa-2,6-dienes. The vinylcarbenoids generated from vinyldiazomethanes with a single electron-withdrawing group exhibited competing reactivity at the vinyl terminus in addition to the carbenoid site. Good regiocontrol was possible, however, by appropriate choice of catalyst and solvent. The practicality of this new approach to tropane alkaloids was demonstrated through short syntheses of (+/-)-ferruginine, (+/-)-anhydroecgonine methyl ester, and the lower homologue of (+/-)-anatoxin a.

  DOI：

  10.1021/jo00019a044

文献信息

• Enantioselective Synthesis of Functionalized Tropanes by Rhodium(II) Carboxylate-Catalyzed Decomposition of Vinyldiazomethanes in the Presence of Pyrroles
  作者：Huw M. L. Davies、Julius J. Matasi、L. Mark Hodges、Nicholas J. S. Huby、Craig Thornley、Norman Kong、Jeffrey H. Houser

  DOI：10.1021/jo961920w

  日期：1997.2.1

  A series of enantiomerically enriched tropanes was synthesized by the rhodium(II) octanoate-catalyzed reaction of various N-BOC-protected pyrroles with vinyldiazomethanes. The overall 3 + 4 annulation occurs by a tandem cyclopropanation/Cope rearrangement. Asymmetric induction was best achieved in these transformations by using either (S)-lactate or (R)-pantolactone as a chiral auxiliary on the vinyldiazomethanes. Reactions carried out with the chiral catalyst tetrakis[N-( 4-tert-butylbenzenesulfonyl)-(L)-prolinato]dirhodium (2) provided moderate asymmetric induction, but also resulted in the formation of isomeric azabicyclooctane side products. The utility of the synthetic process was demonstrated through the asymmetric synthesis of(-)-anhydroecgonine methyl ester and (-)-ferruginine.
• Synthesis of (.+-.)-ferruginine and (.+-.)-anhydroecgonine methyl-ester by a tandem cyclopropanation/Cope rearrangement
  作者：Huw M. L. Davies、Elie Saikali、Wendy B. Young

  DOI：10.1021/jo00019a044

  日期：1991.9

  Rhodium(II) acetate catalyzed decomposition of vinyldiazomethanes in the presence of N-(alkoxycarbonyl)pyrroles led to the synthesis of 8-azabicyclo[3.2.1]octa-2,6-dienes. The vinylcarbenoids generated from vinyldiazomethanes with a single electron-withdrawing group exhibited competing reactivity at the vinyl terminus in addition to the carbenoid site. Good regiocontrol was possible, however, by appropriate choice of catalyst and solvent. The practicality of this new approach to tropane alkaloids was demonstrated through short syntheses of (+/-)-ferruginine, (+/-)-anhydroecgonine methyl ester, and the lower homologue of (+/-)-anatoxin a.
• Synthesis of 2.beta.-Acyl-3.beta.-aryl-8-azabicyclo[3.2.1]octanes and Their Binding Affinities at Dopamine and Serotonin Transport Sites in Rat Striatum and Frontal Cortex
  作者：Huw M. L. Davies、Elie Saikali、Nicholas J. S. Huby、Vernon J. Gilliatt、Julius J. Matasi、Tammy Sexton、Steven R. Childers

  DOI：10.1021/jm00035a005

  日期：1994.4

  A novel entry to tropane analogs of cocaine was developed on the basis of the reaction of rhodium-stabilized vinylcarbenoids with pyrroles. These analogs were tested:in binding to dopamine and serotonin (5-HT) transporters in:membranes from rat striatum and frontal cortex. In all the analogs, the aryl group at the 3-position was directly bound to the tropane ring (as in WIN-35,428), and methyl or ethyl ketone moieties were present at the a-position instead of the typical ester group. The series of analogs containing a 2-naphthyl group at the 3-position were most potent, with K-i values < 1 nM in binding to both dopamine and 5-HT transporters. Although the unsubstituted 2-naphthyl analog was nonselective at dopamine and 5-HT transport sites, other compounds:were selective for either site. In general, compounds with relatively small substituents on the aromatic moiety (such as p-methyl or p-fluoro) were relatively selective for the dopamine transporters, while a p-isopropylphenyl derivative was selective:for the 5-HT transport sites. This latter compound represents the first N-methyltropane derivative specific for 5-HT transporters. Resolution of two of the most significant analogs was achieved by HPLC on a chiral stationary phase; the active enantiomer of a 2-naphthyl analog exhibited K-i values of <0.1 nM at both dopamine and 5-HT transporter sites.