(R)-2-chloro-3-methylbutan-1-ol | 140388-27-8

• 分子结构分类: 有机化合物 - 有机卤素化合物 - 卤代醇
• 英文名称: (R)-2-chloro-3-methylbutan-1-ol
• 英文别名: (2R)-2-chloro-3-methylbutan-1-ol
• CAS: 140388-27-8
• 化学式: C₅H₁₁ClO
• 分子量: 122.595
• InChiKey: OJRHUICOVVSGSY-YFKPBYRVSA-N

物化性质

• 沸点：
  154.7±13.0 °C(Predicted)
• 密度：
  1.015±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.24
• 重原子数：
  7.0
• 可旋转键数：
  2.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  20.23
• 氢给体数：
  1.0
• 氢受体数：
  1.0

反应信息

• 作为反应物：
  描述：

  (R)-2-chloro-3-methylbutan-1-ol 在 正丁基锂 、 三乙胺 、 potassium hydroxide 作用下， 以 四氢呋喃 、 正己烷 、 二氯甲烷 为溶剂， 反应 0.58h， 生成 (S)-1-(4-methoxyphenyl)-3-methylbutan-2-yl methanesulfonate
  参考文献：
  名称：

  Comparative molecular field analysis of fenoterol derivatives interacting with an agonist-stabilized form of the β2-adrenergic receptor

  摘要：

  The beta(2)-adrenergic receptor (beta(2)-AR) agonist [H-3]-(R,R')-methoxyfenoterol was employed as the marker ligand in displacement studies measuring the binding affinities (K-i values) of the stereoisomers of a series of 4'-methoxyfenoterol analogs in which the length of the alkyl substituent at alpha' position was varied from 0 to 3 carbon atoms. The binding affinities of the compounds were additionally determined using the inverse agonist [H-3]-CGP-12177 as the marker ligand and the ability of the compounds to stimulate cAMP accumulation, measured as EC50 values, were determined in HEK293 cells expressing the beta(2)-AR. The data indicate that the highest binding affinities and functional activities were produced by methyl and ethyl substituents at the alpha' position. The results also indicate that the K-i values obtained using [H-3]-(R,R')methoxyfenoterol as the marker ligand modeled the EC50 values obtained from cAMP stimulation better than the data obtained using [H-3]-CGP-12177 as the marker ligand. The data from this study was combined with data from previous studies and processed using the Comparative Molecular Field Analysis approach to produce a CoMFA model reflecting the binding to the beta(2)-AR conformation probed by [H-3]-(R,R')-4'-methoxyfenoterol. The CoMFA model of the agonist-stabilized beta(2)-AR suggests that the binding of the fenoterol analogs to an agonist-stabilized conformation of the beta(2)-AR is governed to a greater extend by steric effects than binding to the [H-3]-CGP-12177-stabilized conformation(s) in which electrostatic interactions play a more predominate role. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2013.11.030
• 作为产物：
  描述：

  (R)-2-氯-3-甲基丁酸 在 dimethyl sulfide borane 作用下， 以 乙醚 、 正己烷 为溶剂， 反应 1.0h， 以97%的产率得到(R)-2-chloro-3-methylbutan-1-ol
  参考文献：
  名称：

  Comparative molecular field analysis of fenoterol derivatives interacting with an agonist-stabilized form of the β2-adrenergic receptor

  摘要：

  The beta(2)-adrenergic receptor (beta(2)-AR) agonist [H-3]-(R,R')-methoxyfenoterol was employed as the marker ligand in displacement studies measuring the binding affinities (K-i values) of the stereoisomers of a series of 4'-methoxyfenoterol analogs in which the length of the alkyl substituent at alpha' position was varied from 0 to 3 carbon atoms. The binding affinities of the compounds were additionally determined using the inverse agonist [H-3]-CGP-12177 as the marker ligand and the ability of the compounds to stimulate cAMP accumulation, measured as EC50 values, were determined in HEK293 cells expressing the beta(2)-AR. The data indicate that the highest binding affinities and functional activities were produced by methyl and ethyl substituents at the alpha' position. The results also indicate that the K-i values obtained using [H-3]-(R,R')methoxyfenoterol as the marker ligand modeled the EC50 values obtained from cAMP stimulation better than the data obtained using [H-3]-CGP-12177 as the marker ligand. The data from this study was combined with data from previous studies and processed using the Comparative Molecular Field Analysis approach to produce a CoMFA model reflecting the binding to the beta(2)-AR conformation probed by [H-3]-(R,R')-4'-methoxyfenoterol. The CoMFA model of the agonist-stabilized beta(2)-AR suggests that the binding of the fenoterol analogs to an agonist-stabilized conformation of the beta(2)-AR is governed to a greater extend by steric effects than binding to the [H-3]-CGP-12177-stabilized conformation(s) in which electrostatic interactions play a more predominate role. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2013.11.030

文献信息

• [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。
• Enantioselective α-Chlorination of Aldehydes with Recyclable Fluorous (S)-Pyrrolidine-Thiourea Bifunctional Organocatalyst
  作者：Chun Cai、Wei Zhang、Liang Wang、Dennis Curran

  DOI：10.1055/s-0029-1219198

  日期：2010.2

  A novel fluorous (S)-pyrrolidine-thiourea bifunctional organocatalyst is prepared. The catalyst shows good activity and enantioselectivity for direct α-chlorination of aldehydes using N-chlorosuccinimide (NCS) as the chlorine source. It can be recovered from the reaction mixture by fluorous solid-phase extraction with excellent purity for direct reuse.

  制备了一种新型的氟（S）-吡咯烷-硫脲双功能有机催化剂。该催化剂在使用 N-氯代琥珀酰亚胺 (NCS) 作为氯源直接 α-氯化醛时表现出良好的活性和对映选择性。它可以通过氟固相萃取从反应混合物中回收，纯度极佳，可直接重复使用。