1-bromocyclopentacarbonitrile | 114583-20-9

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: 1-bromocyclopentacarbonitrile
• 英文别名: 1-bromocyclopentane-1-carbonitrile
• CAS: 114583-20-9
• 化学式: C₆H₈BrN
• 分子量: 174.04
• InChiKey: ZQUQEJATTVGAKB-UHFFFAOYSA-N

物化性质

• 沸点：
  88-89 °C(Press: 18 Torr)
• 密度：
  1.49±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  8
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  23.8
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  二苯乙腈 、 1-bromocyclopentacarbonitrile 在 potassium tert-butylate 作用下， 以 六甲基磷酰三胺 为溶剂， 反应 2.0h， 以48%的产率得到α-(Cyanodiphenylmethyl)cyclopentanecarbonitrile
  参考文献：
  名称：

  Alkylation of Nitrile Anions by Tertiary .alpha.-Halo Ketones and Nitriles

  摘要：

  Potassium salts of nitriles bearing carbethoxy, cyano, or phenyl groups at the alpha carbon [(RR'CCN)K:R' = CO(2)Et, CN, Ph] react with tertiary alpha-halo ketones and nitriles (1-5) in DMSO or HMPA to provide the alkylated beta-keto- or beta-cyano-beta,beta-dialkyl nitriles 6-10 in useful yields. (PhCHCN)(-) undergoes cyclization with p-XC(6)H(4)COCCl(CH3)(2) to produce 2(5H)-furanone 11. Reaction of (Ph(2)CCN)(-) with PhCOCCl(CH3)(2) affords the hydrolyzed ketone 12a and recovered carbon acid, while the anion undergoes oxidative dimerization to NCCPh(2)CPh(2)CN with p-O2NC6H4COCCl(CH3)(2) with concomitant formation of the reduced ketone p-O2NC6H4COCH(CH3)(2) and the hydrolyzed ketone 12b. The alkylations of [NCC(CH3)CO(2)Et](-) and [NCC(CH3)CN](-) with p-O(2)NC(6)H(4)COCX(CH3)(2) take place by the S(RN)1-process.

  DOI：

  10.1021/jo00122a018
• 作为产物：
  描述：

  环戊腈 在 溴 、 三溴化磷 作用下， 以 neat (no solvent) 为溶剂， 以47%的产率得到1-bromocyclopentacarbonitrile
  参考文献：
  名称：

  可见光驱动的N-杂环碳烯与烷基自由基催化γ-和ϵ-烷基化。

  摘要：

  开发了光氧化还原催化和N-杂环卡宾（NHC）催化合并烯基与烷基的γ-和γ-烷基化反应的方法。γ-氧化的烯类与烷基卤的烷基化反应对于合成γ-多取代的α，β-不饱和酯（包括具有挑战性的邻位全碳四元中心的酯）的合成非常有效。还建立了空前的NHC催化的functional-官能化合成ϵ-多取代的α，β-γ，δ-二不饱和酯。

  DOI：

  10.1002/anie.201909017

文献信息

• Reaction of .alpha.-bromoisobutyronitrile with nitroalkane anions
  作者：Francisco Ros、Jose De la Rosa

  DOI：10.1021/jo00247a047

  日期：1988.6
• ROS, FRANCISCO;DE, LA ROSA JOSE, J. ORG. CHEM., 53,(1988) N 12, 2868-2870
  作者：ROS, FRANCISCO、DE, LA ROSA JOSE

  DOI：——

  日期：——
• Alkylation of Nitrile Anions by Tertiary .alpha.-Halo Ketones and Nitriles
  作者：Francisco Ros、Jose de la Rosa、Juan Enfedaque

  DOI：10.1021/jo00122a018

  日期：1995.9

  Potassium salts of nitriles bearing carbethoxy, cyano, or phenyl groups at the alpha carbon [(RR'CCN)K:R' = CO(2)Et, CN, Ph] react with tertiary alpha-halo ketones and nitriles (1-5) in DMSO or HMPA to provide the alkylated beta-keto- or beta-cyano-beta,beta-dialkyl nitriles 6-10 in useful yields. (PhCHCN)(-) undergoes cyclization with p-XC(6)H(4)COCCl(CH3)(2) to produce 2(5H)-furanone 11. Reaction of (Ph(2)CCN)(-) with PhCOCCl(CH3)(2) affords the hydrolyzed ketone 12a and recovered carbon acid, while the anion undergoes oxidative dimerization to NCCPh(2)CPh(2)CN with p-O2NC6H4COCCl(CH3)(2) with concomitant formation of the reduced ketone p-O2NC6H4COCH(CH3)(2) and the hydrolyzed ketone 12b. The alkylations of [NCC(CH3)CO(2)Et](-) and [NCC(CH3)CN](-) with p-O(2)NC(6)H(4)COCX(CH3)(2) take place by the S(RN)1-process.
• Visible‐Light‐Driven N‐Heterocyclic Carbene Catalyzed γ‐ and <i>ϵ</i> ‐Alkylation with Alkyl Radicals
  作者：Lei Dai、Zi‐Hao Xia、Yuan‐Yuan Gao、Zhong‐Hua Gao、Song Ye

  DOI：10.1002/anie.201909017

  日期：2019.12.9

  The merging of photoredox catalysis and N-heterocyclic carbene (NHC) catalysis for γ- and ϵ-alkylation of enals with alkyl radicals was developed. The alkylation reaction of γ-oxidized enals with alkyl halides worked well for the synthesis γ-multisubstituted-α,β-unsaturated esters, including those with challenging vicinal all-carbon quaternary centers. The synthesis of ϵ-multisubstituted-α,β-γ,δ-diunsaturated

  开发了光氧化还原催化和N-杂环卡宾（NHC）催化合并烯基与烷基的γ-和γ-烷基化反应的方法。γ-氧化的烯类与烷基卤的烷基化反应对于合成γ-多取代的α，β-不饱和酯（包括具有挑战性的邻位全碳四元中心的酯）的合成非常有效。还建立了空前的NHC催化的functional-官能化合成ϵ-多取代的α，β-γ，δ-二不饱和酯。