(1S-cis)-1-ethynyl-2-methylenebicyclo<3.1.0>hexane | 135040-96-9

• 分子结构分类: 有机化合物 - 碳氢化合物 - 不饱和烃
• 英文名称: (1S-cis)-1-ethynyl-2-methylenebicyclo<3.1.0>hexane
• 英文别名: (1R,5R)-1-ethynyl-2-methylidenebicyclo[3.1.0]hexane
• CAS: 135040-96-9
• 化学式: C₉H₁₀
• 分子量: 118.178
• InChiKey: IDMTXVSFMOXZSB-RKDXNWHRSA-N

物化性质

• 沸点：
  132.0±10.0 °C(Predicted)
• 密度：
  0.97±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.98
• 重原子数：
  9.0
• 可旋转键数：
  0.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为反应物：
  描述：

  (1S-cis)-1-ethynyl-2-methylenebicyclo<3.1.0>hexane 在 selenium(IV) oxide 咪唑 、 叔丁基过氧化氢 、 lithium aluminium tetrahydride 、 正丁基锂 、 四丁基氟化铵 、 sodium methylate 、 对甲苯磺酸 作用下， 以 四氢呋喃 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 0.25h， 生成 骨化三醇
  参考文献：
  名称：

  Control of stereoselectivity in samarium metal induced cyclopropanations. Synthesis of 1,25-dihydroxycholecalciferol

  摘要：

  1,25-Dihydroxycholecalciferol (23) was synthesized from A-ring precursor 18 and Windaus-Grundmann ketone 19 via cyclovitamin D 21. Key reactions include highly stereoselective (5 to 6) and stereospecific (13 to 14) cyclopropanations.

  DOI：

  10.1016/s0040-4039(00)79919-9
• 作为产物：
  描述：

  (1R-cis)-trimethyl<(2-methylenebicyclo<3.1.0>hexyl)ethynyl>silane 在 sodium carbonate 作用下， 以 甲醇 为溶剂， 反应 3.5h， 以93%的产率得到(1S-cis)-1-ethynyl-2-methylenebicyclo<3.1.0>hexane
  参考文献：
  名称：

  Convergent Synthesis of Vitamin D₃ Metabolites. Control of the Stereoselectivity in Samarium-Induced Cyclopropanations of Cyclopentenes

  摘要：

  The 25-hydroxy and 1 alpha,25-dihydroxy vitamin D-3 metabolites are obtained by solvolytic rearrangements of the 1-desoxy and 1 alpha-hydroxy cyclopropyl vinylogous alcohols 31 and 29, respectively, with simultaneous formation of the vitamin D structural triene and the 3-hydroxy function. Two complementary methods have been employed to direct the stereoselectivity ofthe samarium induced olefin cyclopropanations which ultimately lead to key chiral ring A precursors. One protocol uses the two stereogenic centers of the (R,R)-B,S-butanediol ketal moiety of 8, while the other method uses the allylic hydroxyl group of(R)-16.

  DOI：

  10.1021/jo951229d

文献信息

• Synthesis and NMR Studies of ¹³C-Labeled Vitamin D Metabolites¹
  作者：William H. Okamura、Gui-Dong Zhu、David K. Hill、Richard J. Thomas、Kerstin Ringe、Daniel B. Borchardt、Anthony W. Norman、Leonard J. Mueller

  DOI：10.1021/jo011096y

  日期：2002.3.1

  proteins. Triple-labeled [7,9,19-(13)C(3)]-vitamin D(3) (56), its 25-hydroxylated and 1 alpha,25-dihydroxylated metabolites (58 and 68, respectively), and other labeled materials have been synthesized via coupling of [9-(13)C]-Grundmann's ketone 39 or its protected 25-hydroxy derivative 43 with labeled A ring enyne fragments 25 or 26. The labeled CD-ring fragment 39 was prepared by a sequence involving

  同位素标记的药物分子可用于通过NMR光谱探测与生物宿主（例如膜和蛋白质）相关的配体构象。三标记[7,9,19-（13）C（3）]-维生素D（3）（56），其25-羟基化和1 alpha，25-二羟基化代谢产物（分别为58和68）和其他已通过[9-（13）C] -Grundmann的酮39或其受保护的25-羟基衍生物43与标记的A环烯炔片段25或26的偶联合成了标记的材料。标记的CD环片段39通过序列制备涉及向[Grundmann的烯酮28]的[[（13）C]-甲基碘化碘的格利雅（Grignard）加成，氧化裂解，导致癸二碘化物38的官能团修饰，最后是动力学烯醇化S（N）2环烷基化。C-7，通过在酮醛11上进行的Corey-Fuchs / Wittig工艺，对A环烯炔进行了19次双标记。通过在Wilson-Mazur路线中使用这些标记的片段，C-7,9,19三元（13）C已经制备了标记的代谢
• Control of stereoselectivity in samarium metal induced cyclopropanations. Synthesis of 1,25-dihydroxycholecalciferol
  作者：M. Kabat、J. Kiegiel、N. Cohen、K. Toth、P.M. Wovkulich、M.R. Uskoković

  DOI：10.1016/s0040-4039(00)79919-9

  日期：1991.5

  1,25-Dihydroxycholecalciferol (23) was synthesized from A-ring precursor 18 and Windaus-Grundmann ketone 19 via cyclovitamin D 21. Key reactions include highly stereoselective (5 to 6) and stereospecific (13 to 14) cyclopropanations.
• Convergent Synthesis of Vitamin D₃ Metabolites. Control of the Stereoselectivity in Samarium-Induced Cyclopropanations of Cyclopentenes
  作者：M. M. Kabat、J. Kiegiel、N. Cohen、K. Toth、P. M. Wovkulich、M. R. Uskoković

  DOI：10.1021/jo951229d

  日期：1996.1.1

  The 25-hydroxy and 1 alpha,25-dihydroxy vitamin D-3 metabolites are obtained by solvolytic rearrangements of the 1-desoxy and 1 alpha-hydroxy cyclopropyl vinylogous alcohols 31 and 29, respectively, with simultaneous formation of the vitamin D structural triene and the 3-hydroxy function. Two complementary methods have been employed to direct the stereoselectivity ofthe samarium induced olefin cyclopropanations which ultimately lead to key chiral ring A precursors. One protocol uses the two stereogenic centers of the (R,R)-B,S-butanediol ketal moiety of 8, while the other method uses the allylic hydroxyl group of(R)-16.