5-fluoro-2-methyleneadamantane | 110046-11-2

• 分子结构分类: 有机化合物 - 有机卤素化合物 - 有机氟化物
• 英文名称: 5-fluoro-2-methyleneadamantane
• 英文别名: 1-fluoro-4-methylideneadamantane
• CAS: 110046-11-2
• 化学式: C₁₁H₁₅F
• 分子量: 166.239
• InChiKey: JWXZDAQCGXBSRI-UHFFFAOYSA-N

物化性质

• 沸点：
  205.2±29.0 °C(Predicted)
• 密度：
  1.06±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  12
• 可旋转键数：
  0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.82
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  5-fluoro-2-methyleneadamantane 在 盐酸 作用下， 以 硝基甲烷 为溶剂， 生成 (1S,3S,4S,5R)-4-Chloro-1-fluoro-4-methyl-adamantane
  参考文献：
  名称：

  Electrostatic vs Hyperconjugative Effects as Stereoinductive Factors in the Adamantane Ring System

  摘要：

  A series of 5-substituted (X) adamant-2-yl derivatives 1 (Y = O and CH2) have been synthesized and their C-13 NMR spectra measured. The carbonyl and ethylenic C-13 substituent chemical shifts (SCS) are shown to be proportional to substituent field effects (sigma(F)). By use of the polar field susceptibility parameter (rho(F)) for the former shifts, polar field parameters (Delta sigma(F) values) have been calculated for a series of p-SC6H4 substituents. II-Facial diastereoselectivities for the reduction (NaBH4) and methylation (MeLi) of para-substituted (S) phenyl derivatives of 1 (Y = O; X = p-SC6H4) and, as well, for the hydrochlorination of similarly substituted alkenes 1 (Y = CH2; X = p-SC6H4) have been determined and correlated successfully against polar field parameters (Delta sigma(F) values). The slopes of these plots (log(10)[Z]/[E] vs Delta sigma(F)) provide polar-field susceptibility parameters (rho(FS)) which have been deployed to calculate appropriate diastereoselectivities of the aforementioned reactions for 5-substituted (X) derivatives of 1 (Y = O and CH2) in general. A comparison of these calculated values with observed diastereoselectivities for a wide range of substituents reveals that direct electrostatic field interactions play a dominant role in governing the phenomena for nucleophilic additions of the ketones 1 (Y = O) and that it is unnecessary to invoke Cieplak's transition-state hyperconjugative model. This appears to be also the case for electrophilic additions to 1 (Y = CH2) not involving final nucleophilic capture of an intermediate cation. However, hyperconjugation clearly impinges significantly on II-facial diastereoselectivity for those reactions mediated by 2-adamantyl cations. New results for methyl-substituted derivatives of 1 (Y = O and CH2, X = CH3) reinforces the sigma-electron-withdrawing character of this substituent with respect to gamma- and delta-interactions in the neutral ground-state and cationic species.

  DOI：

  10.1021/jo00086a044
• 作为产物：
  描述：

  5-羟基-2-金刚烷酮 在 正丁基锂 、 (diethylamido)sulfur trifluoride 作用下， 以 二氯甲烷 为溶剂， 反应 5.17h， 生成 5-fluoro-2-methyleneadamantane
  参考文献：
  名称：

  Burgess, Kevin; Van Der Donk, Wilfred A.; Jarstfer, Michael B., Journal of the American Chemical Society, 1991, vol. 113, # 16, p. 6139 - 6144

  摘要：

  DOI：

文献信息

• Transmission of polar substituent effects in the adamantane ring system as monitored by19F NMR
  作者：William Adcock、Neil A. Trout

  DOI：10.1002/(sici)1097-458x(199803)36:3<181::aid-omr250>3.0.co;2-a

  日期：1998.3

  of the 19F substituent chemical shifts (SCS) against polar field parameters (σF) together with comparisons against the 19F SCS of 4‐substituted(X)bicyclo[2.2.2]oct‐1‐yl fluorides (1) provide unequivocal evidence for the importance of electrostatic field and ‘through‐three‐bond’ electron delocalization (double hyperconjugation) effects as long‐range modes of transmission of polar effects in these saturated

  一系列广泛的 (E)/(Z)-5-取代 (X)adamant-2-yl 氟化物（分别为 2 和 3）和 (E)/(Z)-4-取代 (X)adamant-1-合成并表征了基氟（分别为 4 和 5），并在几种溶剂中测量了它们的 19F 化学位移。19F 取代基化学位移 (SCS) 与极场参数 (σF) 的相关性以及与 4-取代 (X) 双环 [2.2.2] oct-1-基氟 (1) 的 19F SCS 的比较为静电场和“通过三键”电子离域（双超共轭）效应作为这些饱和系统中极性效应的长程传输模式的重要性。前一种效应不仅与空间因素（角度和距离）有关，而且与 C-F σ 键的“刚度”有关。后一种电子机制显然是调节 2 和 4 的 19F SCS 的主要因素，但由于特定的立体电子要求，在 3 和 5 中被“关闭”。©1998 John Wiley & Sons, Ltd.
• Chung, Wen-Sheng; Ho, Chia-Chin, Journal of the Chemical Society. Perkin Transactions 2 (2001), 1997, # 3, p. 553 - 557
  作者：Chung, Wen-Sheng、Ho, Chia-Chin

  DOI：——

  日期：——
• Face Selectivity in the 1,3-Dipolar Cycloaddition Reactions of Benzonitrile Oxide with 5-Substituted Adamantane-2-thiones and 2-Methyleneadamantanes
  作者：Wen-Sheng Chung、Tzong-Liang Tsai、Chia-Chin Ho、M. Y. N. Chiang、W. J. le Noble

  DOI：10.1021/jo9703717

  日期：1997.7.1

  The 1,3-dipolar cycloaddition reactions of benzonitrile oxide with 5-substituted adamantane-2-thiones (2-X) and 2-methyleneadamantanes (3-X) produced two geometrically isomeric Delta(2)-1,4,2-oxathiazolines (5-Xs) and two Delta(2)-isoxazolines (6-Xs), respectively. The substituent was varied from fluoro, chloro, bromo, to phenyl. X-ray single-crystal analysis confirmed the configuration of (Z)-5-F. The produce formation bias resulting from the favored attack of nitrile oxide on the zu-face is discussed in terms of transition-state hyperconjugation and frontier molecular orbital theory.
• Electrostatic vs Hyperconjugative Effects as Stereoinductive Factors in the Adamantane Ring System
  作者：William Adcock、Jason Cotton、Neil A. Trout

  DOI：10.1021/jo00086a044

  日期：1994.4

  A series of 5-substituted (X) adamant-2-yl derivatives 1 (Y = O and CH2) have been synthesized and their C-13 NMR spectra measured. The carbonyl and ethylenic C-13 substituent chemical shifts (SCS) are shown to be proportional to substituent field effects (sigma(F)). By use of the polar field susceptibility parameter (rho(F)) for the former shifts, polar field parameters (Delta sigma(F) values) have been calculated for a series of p-SC6H4 substituents. II-Facial diastereoselectivities for the reduction (NaBH4) and methylation (MeLi) of para-substituted (S) phenyl derivatives of 1 (Y = O; X = p-SC6H4) and, as well, for the hydrochlorination of similarly substituted alkenes 1 (Y = CH2; X = p-SC6H4) have been determined and correlated successfully against polar field parameters (Delta sigma(F) values). The slopes of these plots (log(10)[Z]/[E] vs Delta sigma(F)) provide polar-field susceptibility parameters (rho(FS)) which have been deployed to calculate appropriate diastereoselectivities of the aforementioned reactions for 5-substituted (X) derivatives of 1 (Y = O and CH2) in general. A comparison of these calculated values with observed diastereoselectivities for a wide range of substituents reveals that direct electrostatic field interactions play a dominant role in governing the phenomena for nucleophilic additions of the ketones 1 (Y = O) and that it is unnecessary to invoke Cieplak's transition-state hyperconjugative model. This appears to be also the case for electrophilic additions to 1 (Y = CH2) not involving final nucleophilic capture of an intermediate cation. However, hyperconjugation clearly impinges significantly on II-facial diastereoselectivity for those reactions mediated by 2-adamantyl cations. New results for methyl-substituted derivatives of 1 (Y = O and CH2, X = CH3) reinforces the sigma-electron-withdrawing character of this substituent with respect to gamma- and delta-interactions in the neutral ground-state and cationic species.
• Burgess, Kevin; Van Der Donk, Wilfred A.; Jarstfer, Michael B., Journal of the American Chemical Society, 1991, vol. 113, # 16, p. 6139 - 6144
  作者：Burgess, Kevin、Van Der Donk, Wilfred A.、Jarstfer, Michael B.、Ohlmeyer, Michael J.

  DOI：——

  日期：——