oxyhept-2-enenitrile | 127202-20-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: oxyhept-2-enenitrile
• 英文别名: (E)-7-oxohept-2-enenitrile
• CAS: 127202-20-4
• 化学式: C₇H₉NO
• 分子量: 123.155
• InChiKey: UPPYTUCRLHZLQO-DUXPYHPUSA-N

物化性质

• 沸点：
  240.9±33.0 °C(Predicted)
• 密度：
  0.959±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.5
• 重原子数：
  9
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  40.9
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  oxyhept-2-enenitrile 以72%的产率得到
  参考文献：
  名称：

  ENHOLM, ERIC J.;TRIVELLAS, ANTIGONE, TETRAHEDRON LETT., 30,(1989) N, C. 1063-1066

  摘要：

  DOI：
• 作为产物：
  描述：

  delta-戊内酯 在 草酰氯 、 二异丁基氢化铝 、 二甲基亚砜 、 三乙胺 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 生成 oxyhept-2-enenitrile
  参考文献：
  名称：

  Diastereoselective Synthesis of Cycloalkylamines by Samarium Diiodide-Promoted Cyclizations of α-Amino Radicals Derived from α-Benzotriazolylalkenylamines

  摘要：

  The condensation of omega-unsaturated aldehydes with benzotriazole and secondary amines affords alpha-benzotriazolylalkenylamines that exist in solution as mixtures of the corresponding benzotriazol-1-yl and benzotriazol-2-yl isomers resulting from their rapid dissociation into iminium cations and the benzotriazolyl anion. The reduction of these adducts with samarium diiodide (SmI2) takes place with formation of the benzotriazolyl anion and alpha-amino alkenyl radicals that undergo 5- or 6-exo-trig cyclizations leading to substituted cycloalkyl- or cycloheteroalkylamines. The presence of an electron-withdrawing substituent in the alkene subunit is required for efficient cyclizations. The formation of cyclopentylamines takes place with unusually high 1,5-cis selectivity (hex-5-enyl radical numbering), and the presence of a 2- or 4-Me substituent also imparts high 1,2- or 1,4-trans stereoinduction, respectively. The corresponding six-membered rings, however, are formed with low diastereoselectivity. Semiempirical calculations performed on model systems suggest that a stabilizing secondary orbital interaction between the amino group and the electron-deficient alkene might in part account for the enhanced cis-selectivity encountered.

  DOI：

  10.1021/jo960957d

文献信息

• Lanthanide induced intramolecular coupling of aldehydes and ketones with electron-deficient olefins
  作者：Eric J. Enholm、Antigone Trivellas

  DOI：10.1016/s0040-4039(01)80359-2

  日期：1989.1

  Aldehydes or ketones with a δ,ε-olefin bearing a conjugating electron-withdrawing group undergo reductive cyclization with samarium iodide to afford five-membered rings. Diastereoselectivities of > 250:1 have been obtained.

  带有带有共轭吸电子基团的δ，ε-烯烃的醛或酮与碘化sa进行还原环化反应，得到五元环。获得了> 250：1的非对映选择性。
• ENHOLM, ERIC J.;PRASAD, GIRIJA, TETRAHEDRON LETT., 30,(1989) N7, C. 4939-4942
  作者：ENHOLM, ERIC J.、PRASAD, GIRIJA

  DOI：——

  日期：——
• TOKUDA MASAO; WATANABE YASUYUKI; ITOH MITSUOMI, BULL. CHEM. SOC. JAP., 1978, 51, NO 3, 905-908
  作者：TOKUDA MASAO、 WATANABE YASUYUKI、 ITOH MITSUOMI

  DOI：——

  日期：——