(+/-)-1-phenyl-2-(benzylamino)ethanol hydrochloride | 35046-48-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (+/-)-1-phenyl-2-(benzylamino)ethanol hydrochloride
• 英文别名: 2-benzylamino-1-phenyl-ethanol; hydrochloride；2-Benzylamino-1-phenyl-aethanol; Hydrochlorid；2-(Benzylamino)-1-phenylethanol;hydrochloride
• CAS: 35046-48-1
• 化学式: C₁₅H₁₇NO*ClH
• 分子量: 263.767
• InChiKey: RRXDHQWSHLQDQO-UHFFFAOYSA-N

物化性质

• 熔点：
  223-225 °C

计算性质

• 辛醇/水分配系数(LogP)：
  2.93
• 重原子数：
  18
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  32.3
• 氢给体数：
  3
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (+/-)-1-phenyl-2-(benzylamino)ethanol hydrochloride 、 尿素 反应 2.0h， 以46%的产率得到1-benzyl-4-phenylimidazolidin-2-one
  参考文献：
  名称：

  使用脒基催化剂对内酰胺和硫内酰胺进行催化、对映选择性 N-酰化

  摘要：

  与醇和胺不同，外消旋内酰胺和硫内酰胺不能通过酶促酰化或经典拆分直接拆分。由脒基催化剂，特别是 Cl-PIQ 2 和 BTM 3 促进的不对称 N-酰化，为这些有价值的化合物的动力学拆分提供了一种方便的方法，并且通常在该过程中实现了出色的对映选择性。密度泛函理论计算表明，反应通过内酰胺互变异构体的 N-酰化发生，阳离子-π 相互作用在内酰胺底物的手性识别中起关键作用。

  DOI：

  10.1021/ja306766n
• 作为产物：
  描述：

  2-氨基-1-苯乙醇 在 盐酸 作用下， 以 乙醇 为溶剂， 反应 3.0h， 生成 (+/-)-1-phenyl-2-(benzylamino)ethanol hydrochloride
  参考文献：
  名称：

  使用脒基催化剂对内酰胺和硫内酰胺进行催化、对映选择性 N-酰化

  摘要：

  与醇和胺不同，外消旋内酰胺和硫内酰胺不能通过酶促酰化或经典拆分直接拆分。由脒基催化剂，特别是 Cl-PIQ 2 和 BTM 3 促进的不对称 N-酰化，为这些有价值的化合物的动力学拆分提供了一种方便的方法，并且通常在该过程中实现了出色的对映选择性。密度泛函理论计算表明，反应通过内酰胺互变异构体的 N-酰化发生，阳离子-π 相互作用在内酰胺底物的手性识别中起关键作用。

  DOI：

  10.1021/ja306766n

文献信息

• One‐Pot Synthesis of Chiral 1‐Aryl‐2‐Aminoethanols via Ir‐Catalyzed Asymmetric Hydrogenation
  作者：Lei Zhang、Liming Cao、Maolin Sun、Chaoming Liang、Lei Yang、Yueyue Ma、Ruihua Cheng、Jinxing Ye

  DOI：10.1002/chem.202300367

  日期：——

  The one-pot protocol involving the in situ generation of α-amino ketones via the nucleophilic substitution of α-bromoketones with amines and the Ir-catalyzed asymmetric hydrogenation of ketone intermediates was developed for the asymmetric synthesis of a diverse array of chiral β-amino alcohols with excellent results.

  一锅法涉及通过用胺亲核取代 α-溴酮原位生成 α-氨基酮和 Ir 催化的酮中间体不对称氢化，用于不对称合成多种手性 β-氨基醇类，效果极佳。
• Alkylation of N-trimethylsilylated primary amines with arylethylene oxides. An efficient synthesis of 1-phenethanolamines.
  作者：Randall K Atkins、Jeffery Frazier、Larry L Moore、Leland O Weigel

  DOI：10.1016/s0040-4039(00)84553-0

  日期：1986.1
• Stereocontrol between Remote Atom Centers in Acyclic Substrates. Anti Addition of Hydride to 1,5-, 1,6-, and 1,7-Hydroxy Ketones
  作者：Han-Cheng Zhang、Bruce D. Harris、Michael J. Costanzo、Edward C. Lawson、Cynthia A. Maryanoff、Bruce E. Maryanoff

  DOI：10.1021/jo981341m

  日期：1998.10.1

  For conformationally unconstrained, acyclic organic compounds, the control of stereogenic centers at remote positions of a chain, that is, at a distance of four or more atom centers, remains a challenging problem in asymmetric synthesis. We report on our studies of 1,5, 1,6, and 1,7 diastereoselectivity in hydride reductions of acyclic hydroxy amino ketones and related compounds, which were sparked by our discovery of high 1,5 diastereocontrol (>10:1) with substrates such as 17 and 23. We have been able to achieve both high 1,5- and 1,6-anti diastereocontrol in the reduction of 1,5- and 1,6-hydroxy ketone substrates, respectively. However, the level of 1,7-anti diastereocontrol with 1,7-hydroxy ketones was only moderate. More specifically, reduction of 23 to 24 with R-alpine-hydride or Zn(BH4)(2) in CH2Cl2 (predominantly) at -78 degrees C gave high 1,5-anti stereoselectivity (anti/syn = 10:1 or 13:1, respectively), and reduction of 34 to 35 with R-alpine-hydride (CH2Cl2) gave high 1,6-anti selectivity (anti/syn = 12:1, respectively), whereas reduction of 46 to 44 with R-alpine-hydride (CH2Cl2) gave only moderate 1,7-anti stereoselectivity (anti/syn = 3:1). Results for reductions of 1,5- and 1,6-hydroxy ketone substrates having the N-benzyl structural subunit replaced (i.e., 27 --> 28, 29 --> 30, 31 --> 32, 52 --> 53, 54a --> 55a, 54b --> 55b, 54c --> 55c, and 56 --> 57) clearly indicate that the stereoelectronic character of this subunit plays a critical. role in the attainment of high anti asymmetric induction. Thus, while we obtained exceptionally high 1,6-anti stereoselectivity in the reduction of the N-mesitylmethyl substrate, 54c, to 1,6-diols 55c (anti/syn = 22:1) with R-alpine-hydride at -78 degrees C in CH2Cl2, the N-methyl substrate, 54b, gave a relatively modest anti/syn ratio of 3:1. The diminished anti/syn ratio of 4:1 in the R-alpine-hydride reduction of methoxy amino ketone 50 to 51 also indicates the importance of the free hydroxyl group for attaining high 1,6-anti stereoselectivity. To rationalize the high remote anti stereocontrol in such acyclic systems, we discuss a chelation-controlled mechanism, involving external hydride addition to a bicyclic metal complex with a coordinated ketone carbonyl (e.g., 33) vs internal hydride addition to a monocyclic metal complex with an uncoordinated ketone carbonyl (e.g., 58).
• Catalytic, Enantioselective N-Acylation of Lactams and Thiolactams Using Amidine-Based Catalysts
  作者：Xing Yang、Valentina D. Bumbu、Peng Liu、Ximin Li、Hui Jiang、Eric W. Uffman、Lei Guo、Wei Zhang、Xuntian Jiang、K. N. Houk、Vladimir B. Birman

  DOI：10.1021/ja306766n

  日期：2012.10.24

  contrast to alcohols and amines, racemic lactams and thiolactams cannot be resolved directly via enzymatic acylation or classical resolution. Asymmetric N-acylation promoted by amidine-based catalysts, particularly Cl-PIQ 2 and BTM 3, provides a convenient method for the kinetic resolution of these valuable compounds and often achieves excellent levels of enantioselectivity in this process. Density

  与醇和胺不同，外消旋内酰胺和硫内酰胺不能通过酶促酰化或经典拆分直接拆分。由脒基催化剂，特别是 Cl-PIQ 2 和 BTM 3 促进的不对称 N-酰化，为这些有价值的化合物的动力学拆分提供了一种方便的方法，并且通常在该过程中实现了出色的对映选择性。密度泛函理论计算表明，反应通过内酰胺互变异构体的 N-酰化发生，阳离子-π 相互作用在内酰胺底物的手性识别中起关键作用。