2-acetamido-2-cyclohexylideneacetic acid | 1233234-93-9

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 2-acetamido-2-cyclohexylideneacetic acid
• CAS: 1233234-93-9
• 化学式: C₁₀H₁₅NO₃
• 分子量: 197.234
• InChiKey: LKWMIFBBMJZHRY-UHFFFAOYSA-N

物化性质

• 熔点：
  207-209 °C
• 沸点：
  465.1±37.0 °C(Predicted)
• 密度：
  1.192±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  66.4
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-acetamido-2-cyclohexylideneacetic acid 在 [Rh((R,R)-Cy-SMS-Phos)(MeOH)2]BF4 、 氢气 作用下， 以 甲醇 为溶剂， 20.0 ℃ 、100.0 kPa 条件下， 反应 4.0h， 生成 (S)-乙酰基氨基环己基乙酸
  参考文献：
  名称：

  Impact on Hydrogenation Catalytic Cycle of the R Groups’ Cyclic Feature in “R-SMS-Phos”

  摘要：

  A series of R-SMS-Phos ligands was evaluated in the Rh(I)-catalyzed hydrogenation of a set of olefins showing a marked influence of the cyclic nature and structure of the R groups. Overall, cPen- and Cy-SMS-Phos performed efficiently, while Ph- and Bn-SMS-Phos exhibited slower kinetics and furnished lower ee's also compared with C6F5CH2-SMS-Phos. The Rh(I)-(Cy-SMS-Phos) catalyst was screened under mild conditions displaying excellent enantioselectivities and high TOFs. Cases of catalysis under catalyst or substrate control were identified.

  DOI：

  10.1021/ol101029s
• 作为产物：
  描述：

  2-乙酰氨基-2-环己基乙酸甲酯 在 potassium hydroxide 作用下， 以 甲醇 为溶剂， 以83%的产率得到2-acetamido-2-cyclohexylideneacetic acid
  参考文献：
  名称：

  Impact on Hydrogenation Catalytic Cycle of the R Groups’ Cyclic Feature in “R-SMS-Phos”

  摘要：

  A series of R-SMS-Phos ligands was evaluated in the Rh(I)-catalyzed hydrogenation of a set of olefins showing a marked influence of the cyclic nature and structure of the R groups. Overall, cPen- and Cy-SMS-Phos performed efficiently, while Ph- and Bn-SMS-Phos exhibited slower kinetics and furnished lower ee's also compared with C6F5CH2-SMS-Phos. The Rh(I)-(Cy-SMS-Phos) catalyst was screened under mild conditions displaying excellent enantioselectivities and high TOFs. Cases of catalysis under catalyst or substrate control were identified.

  DOI：

  10.1021/ol101029s

文献信息

• Catalyst for asymmetric (transfer) hydrogenation
  申请人：——

  公开号：US20030199713A1

  公开（公告）日：2003-10-23

  Catalyst for the asymmetric (transfer) hydrogenation represented by the formula ML a X b S c , where M is a transition metal, to be chosen from rhodium and ruthenium, and X is a counter ion and S is a ligand, a ranges from 0.5 to 3 and b and c, each independently, range from 0 to 2, and L is a chiral ligand having the formula (1), where C n together with the two 2 O-atoms and the P-atom forms a substituted or non-substituted ring with 2-4 C-atoms, R 1 and R 2 each independently represent H, an optionally substituted alkyl, aryl, alkaryl or aralkyl group or may form a (heterocyclic) ring together with the N-atom to which they are bound. And a process for the asymmetric (transfer) hydrogenation of an olefinically unsaturated compound, ketone, imine or oxime derivate in the presence of a hydrogen donor and of a catalyst, use being made of a catalyst represented by formula ML a X b S c , where M is a transition metal, to be chosen from rhodium, iridium and ruthenium, X is a counter ion, S is a ligand, a ranges from 0.5 to 3 and b and c range from 0 to 2, and L is a chiral ligand having the formula (1), where C n together with the two 2 O-atoms and the P-atom forms a substituted or non-substituted ring with 2-4 C-atoms; and R 1 and R 2 are as defined above.

  催化剂用于不对称（转移）氢化反应，其表示为M为过渡金属，可选自铑和钌，X为反离子，S为配体，a范围为0.5至3，b和c各自独立地范围为0至2，L为手性配体，其化学式为（1），其中Cntogether与两个氧原子和磷原子形成具有2-4个碳原子的取代或非取代环，R1和R2各自独立地代表氢，或可选地取代的烷基，芳基，烷芳基或芳烷基，或者与它们结合的氮原子一起形成（杂环）环。一种用于不对称（转移）氢化烯烃不饱和化合物，酮，亚胺或肟衍生物的方法，在氢供体和催化剂存在下进行，所用催化剂的化学式为MLaXbSc，其中M为过渡金属，可选自铑，铱和钌，X为反离子，S为配体，a范围为0.5至3，b和c范围为0至2，L为手性配体，其化学式为（1），其中Cntogether与两个氧原子和磷原子形成具有2-4个碳原子的取代或非取代环；R1和R2如上所定义。
• CATALYST FOR ASYMMETRIC (TRANSFER) HYDROGENATION
  申请人：DSM N.V.

  公开号：EP1325013A2

  公开（公告）日：2003-07-09
• US6989461B2
  申请人：——

  公开号：US6989461B2

  公开（公告）日：2006-01-24
• [EN] CATALYST FOR ASYMMETRIC (TRANSFER) HYDROGENATION<br/>[FR] CATALYSEUR UTILISE EN VUE DE REALISER UNE HYDROGENATION(TRANSFERT) ASYMETRIQUE
  申请人：DSM NV

  公开号：WO2002004466A2

  公开（公告）日：2002-01-17

  Catalyst for the asymmetric (transfer) hydrogenation represented by the formula MLaXbSc, where M is a transition metal, to be chosen from rhodium and ruthenium, and X is a counter ion and S is a ligand, a ranges from 0.5 to 3 and b anc c, each independently, range from 0 to 2, and L is a chiral ligand having the formula (1), where Cn together with the two 2 O-atoms and the P-atom forms a substituted or non-substituted ring with 2-4 C-atoms, R?1 and R2¿ each independently represent H, an optionally substituted alkyl, aryl, alkaryl or aralkyl group or may form a (heterocyclic) ring together with the N-atom to which they are bound. And a process for the asymmetric (transfer) hydrogenation of an olefinically unsaturated compound, ketone, imine or oxime derivate in the presence of a hydrogen donor and of a catalyst, use being made of a catalyst represented by formula ML¿a?XbSc, where M is a transition metal, to be chosen from rhodium, iridium and ruthenium, X I a counter ion, S is a ligand, a ranges from 0.5 to 3 and b and c range from 0 to 2, and L is a chiral ligand having the formula (1), where Cn together with the two 2 O-atoms and the P-atom forms a substituted or non-substituted ring with 2-4 C-atoms; and R?1 and R2¿ are as defined above.
• Impact on Hydrogenation Catalytic Cycle of the R Groups’ Cyclic Feature in “R-SMS-Phos”
  作者：Borut Zupančič、Barbara Mohar、Michel Stephan

  DOI：10.1021/ol101029s

  日期：2010.7.2

  A series of R-SMS-Phos ligands was evaluated in the Rh(I)-catalyzed hydrogenation of a set of olefins showing a marked influence of the cyclic nature and structure of the R groups. Overall, cPen- and Cy-SMS-Phos performed efficiently, while Ph- and Bn-SMS-Phos exhibited slower kinetics and furnished lower ee's also compared with C6F5CH2-SMS-Phos. The Rh(I)-(Cy-SMS-Phos) catalyst was screened under mild conditions displaying excellent enantioselectivities and high TOFs. Cases of catalysis under catalyst or substrate control were identified.