(2R)-1-ethyl 2-methyl pyrrolidine-1,2-dicarboxylate | 77581-28-3

• 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: (2R)-1-ethyl 2-methyl pyrrolidine-1,2-dicarboxylate
• 英文别名: N-Carbethoxy-prolin-methylester；1-Ethyl 2-methyl pyrrolidine-1,2-dicarboxylate；1-O-ethyl 2-O-methyl pyrrolidine-1,2-dicarboxylate
• CAS: 77581-28-3
• 化学式: C₉H₁₅NO₄
• 分子量: 201.222
• InChiKey: YCWGTZNCRJOYQK-UHFFFAOYSA-N

物化性质

• 沸点：
  267.4±33.0 °C(Predicted)
• 密度：
  1.173±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.9
• 重原子数：
  14
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.78
• 拓扑面积：
  55.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  间氨基苯甲醚 、 (2R)-1-ethyl 2-methyl pyrrolidine-1,2-dicarboxylate 在 potassium n-butoxide 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 0.5h， 生成 1-N,2-N-bis(3-methoxyphenyl)pyrrolidine-1,2-dicarboxamide
  参考文献：
  名称：

  Amide as an efficient ligand in the palladium-catalyzed Suzuki coupling reaction in water/ethanol under aerobic conditions

  摘要：

  Amide, which is derived from proline and is inexpensive and air-stable, has been synthesized and characterized by H-1 NMR, C-13 NMR, and MS. It was found to be an efficient ligand in the palladium-catalyzed Suzuki cross-coupling reaction. In the Pd/amide catalytic system, aryl bromides can be coupled with phenylboronic acid in ethanol/water (1:2; v/v) in excellent yields even with a low Pd loading of 0.01 mol%. Moreover, the scope of the reaction is broad, and a wide variety of functional groups are tolerant. (C) 2011 Hua Chen. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

  DOI：

  10.1016/j.cclet.2010.12.048
• 作为产物：
  描述：

  氯甲酸乙酯 、 甲基吡咯烷-2-羧酸 反应 12.0h， 生成 (2R)-1-ethyl 2-methyl pyrrolidine-1,2-dicarboxylate
  参考文献：
  名称：

  Amide as an efficient ligand in the palladium-catalyzed Suzuki coupling reaction in water/ethanol under aerobic conditions

  摘要：

  Amide, which is derived from proline and is inexpensive and air-stable, has been synthesized and characterized by H-1 NMR, C-13 NMR, and MS. It was found to be an efficient ligand in the palladium-catalyzed Suzuki cross-coupling reaction. In the Pd/amide catalytic system, aryl bromides can be coupled with phenylboronic acid in ethanol/water (1:2; v/v) in excellent yields even with a low Pd loading of 0.01 mol%. Moreover, the scope of the reaction is broad, and a wide variety of functional groups are tolerant. (C) 2011 Hua Chen. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

  DOI：

  10.1016/j.cclet.2010.12.048

文献信息

• CATALYST FOR ASYMMETRIC HYDROGENATION
  申请人：MAEDA Hironori

  公开号：US20100324338A1

  公开（公告）日：2010-12-23

  This invention aims at providing a catalyst for producing an optically active aldehyde or an optically active ketone, which is an optically active carbonyl compound, by carrying out selective asymmetric hydrogenation of an α,β-unsaturated carbonyl compound, particularly a catalyst which is insoluble in a reaction mixture for obtaining optically active citronellal which is useful as a flavor or fragrance, by carrying out selective asymmetric hydrogenation of citral, geranial or neral; and a method for producing a corresponding optically active carbonyl compound. The invention relates to a catalyst for asymmetric hydrogenation of an α,β-unsaturated carbonyl compound, which comprises a powder of at least one metal selected from metals belonging to Group 8 to Group 10 of the Periodic Table, or a metal-supported substance in which at least one metal selected from metals belonging to Group 8 to Group 10 of the Periodic Table is supported on a support, an optically active cyclic nitrogen-containing compound and an acid.

  这项发明旨在通过对α，β-不饱和羰基化合物进行选择性不对称加氢，特别是通过对柠檬醛、香叶醛或柠檬醛进行选择性不对称加氢，从而提供用作香料或香精的有用的光学活性香茅醛的催化剂，该香茅醛是一种光学活性羰基化合物；以及生产相应的光学活性羰基化合物的方法。该发明涉及一种用于不对称加氢α，β-不饱和羰基化合物的催化剂，其包括来自周期表第8至第10族金属中至少一种金属的粉末，或者至少一种来自周期表第8至第10族金属的金属负载物质，该金属负载在一种支撑物上，还包括光学活性的含氮环化合物和酸。
• [EN] CATALYTIC ASYMMETRIC SYNTHESIS OF OPTICALLY ACTIVE alpha-HALO-CARBONYL COMPOUNDS<br/>[FR] SYNTHESE ASYMETRIQUE CATALYTIQUE DE COMPOSES DE DOLLAR G(A)-HALO-CARBONYLE OPTIQUEMENT ACTIFS
  申请人：HALLAND NIS

  公开号：WO2005080298A1

  公开（公告）日：2005-09-01

  A process for the catalytic asymmetric synthesis of an optically active compound of the formula (la) or (lb): wherein R is an organic group; X is halogen; Rl and R2which may the same or different represents H, or an organic group or Rl and R2 may be bridged together forming part of a ring system; R and R2 may be bridged together forming part of a ring system; with the provisio that R and Rl are different and R2, when different from H, is attached though a carbon-carbon bond, comprising the step of reacting a compound of the formula (2): with a halogenation agent in the presence of a catalytic amount of a chiral nitrogen containing organic compound.

  一种用于催化不对称合成光学活性化合物的方法，其化学式为(la)或(lb)：其中R是有机基团；X是卤素；R1和R2可以相同也可以不同，分别代表H，或者是有机基团，或者R1和R2可以通过形成环系统的桥连接在一起；R和R2可以通过形成环系统的桥连接在一起；在R和R1不同且R2与H不同时通过碳-碳键连接时，包括以下步骤：将化合物(2)与卤化试剂在含有含有手性氮的有机化合物的催化剂量的情况下反应。
• PROCESSES FOR PREPARING JAK INHIBITORS AND RELATED INTERMEDIATE COMPOUNDS
  申请人：Zhou Jiacheng

  公开号：US20100190981A1

  公开（公告）日：2010-07-29

  The present invention is related to processes for preparing chiral substituted pyrazolyl pyrrolo[2,3-d]pyrimidines of Formula III, and related synthetic intermediate compounds. The chiral substituted pyrazolyl pyrrolo[2,3-d]pyrimidines are useful as inhibitors of the Janus Kinase family of protein tyrosine kinases (JAKs) for treatment of inflammatory diseases, myeloproliferative disorders, and other diseases.

  本发明涉及制备手性取代吡唑基吡咯并[2,3-d]嘧啶的公式III的过程，以及相关的合成中间体化合物。这些手性取代吡唑基吡咯并[2,3-d]嘧啶可用作抑制Janus激酶家族蛋白酪氨酸激酶（JAKs）的药物，用于治疗炎症性疾病、骨髓增生性疾病和其他疾病。
• [EN] CATALYST COMPOUNDS<br/>[FR] COMPOSÉS CATALYTIQUES
  申请人：UNIV SHEFFIELD

  公开号：WO2013079942A1

  公开（公告）日：2013-06-06

  The present invention relates to compounds, particularly but not exclusively, compounds for use as catalysts, methods for producing said compounds and the use of said compounds as catalysts in catalytic processes including, but not limited to, the asymmetric reduction of imine and enamine compounds and/or the reductive amination of ketone compounds. The compounds have the formula 1 wherein: R1, R2, R3, R4 and R5 are each separately selected from the group consisting of hydrogen, alkyl and aryl; X is oxygen or sulfur; W is selected from the group consisting of – OR18,–SR18, –NR19R20, –PR19R20 where R18 is alkyl or aryl, and R19 and R20 are each separately selected from the group consisting of hydrogen, alkyl and aryl; and Z has the formula 2 wherein: R6 and R7 are each separately selected from the group consisting of hydrogen, alkoxy, nitro, halogen, alkyl and aryl, or R6 and R7 are linked to form a cyclic group; and Y is oxygen, sulfur or NR10 in which R10 is selected from the group consisting of hydrogen, alkyl and aryl.

  本发明涉及化合物，特别是但不限于用作催化剂的化合物，生产上述化合物的方法以及将上述化合物用作催化剂在催化过程中的使用，包括但不限于对亚胺和烯胺化合物的不对称还原和/或对酮化合物的还原胺化反应。这些化合物的化学式为1，其中：R1、R2、R3、R4和R5分别从氢、烷基和芳基组成的群体中独立选择；X为氧或硫；W从-OR18、-SR18、-NR19R20、-PR19R20组成的群体中选择，其中R18为烷基或芳基，R19和R20分别从氢、烷基和芳基组成的群体中独立选择；Z的化学式为2，其中：R6和R7分别从氢、烷氧基、硝基、卤素、烷基和芳基组成的群体中独立选择，或者R6和R7连接形成一个环状基团；Y为氧、硫或NR10，其中R10从氢、烷基和芳基组成的群体中选择。
• METHOD FOR MANUFACTURING OPTICALLY ACTIVE MENTHOL
  申请人：Takasago International Corporation

  公开号：EP2647616A1

  公开（公告）日：2013-10-09

  An object of the present invention is to provide a method for manufacturing an optically active menthol having fewer steps, which generates less environmentally polluting waste because a catalytic reaction is involved in all of the steps, and is capable of saving a production cost. The present invention relates to a method for manufacturing an optically active menthol, including the following steps: A-1) asymmetrically hydrogenating at least one of geranial and neral to thereby obtain an optically active citronellal, B-1) conducting a ring-closure reaction of the optically active citronellal in the presence of an acid catalyst to thereby obtain an optically active isopulegol, and C-1) hydrogenating the optically active isopulegol to thereby obtain an optically active menthol.

  本发明的目的是提供一种制造光学活性薄荷醇的方法，该方法步骤较少，由于所有步骤都涉及催化反应，因此产生的环境污染废物较少，并且能够节约生产成本。本发明涉及一种制造光学活性薄荷醇的方法，包括以下步骤：A-1）不对称地氢化香叶醇和醛中的至少一种，从而得到光学活性香茅醛；B-1）在酸催化剂存在下对光学活性香茅醛进行闭环反应，从而得到光学活性异丁烯二酸；C-1）氢化光学活性异丁烯二酸，从而得到光学活性薄荷醇。