(R)-2-amino-3,3-dimethyl-1,1-diphenylbutan-1-ol | 218800-31-8

• 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: (R)-2-amino-3,3-dimethyl-1,1-diphenylbutan-1-ol
• 英文别名: (2R)-2-amino-3,3-dimethyl-1,1-diphenylbutan-1-ol
• CAS: 218800-31-8
• 化学式: C₁₈H₂₃NO
• 分子量: 269.387
• InChiKey: HZIHDWNOPKIOCK-MRXNPFEDSA-N

物化性质

• 沸点：
  431.0±40.0 °C(Predicted)
• 密度：
  1.061±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  20
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  46.2
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (R)-2-amino-3,3-dimethyl-1,1-diphenylbutan-1-ol 在 sodium hydroxide 、 正丁基锂 、 三乙胺 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 为溶剂， 反应 9.0h， 生成 (R)-4-(tert-butyl)-3-(1-oxopropyl)-5,5-diphenyloxazolidin-2-one
  参考文献：
  名称：

  A Useful Modification of theEvans Auxiliary: 4-Isopropyl-5,5-diphenyloxazolidin-2-one

  摘要：

  The 4-isopropyl-5,5-diphenyloxazolidinone (1) is readily prepared from (R)- or (S)-valine ester, PhMgBr, and ethyl chlorocarbonate. It has a melting point of ca. 250 degrees, a low solubility in most organic solvents, and a C=O group which is sterically protected from nucleophilic attack. Thus; the soluble N-acyl-oxazolidinones (7-16) can be prepared from 1 with BuLi at temperatures around 0 degrees instead of - 78 degrees (Scheme 3): their Li enolates can be generated with BuLi, rather than with LDA, and deacylation in the final step of the procedure can be achieved with NaOH at ambient temperatures (Scheme 12),with facile recovery of the precipitating auxiliary 1 (filtering, washing, and drying). The following reactions of N-acyl-oxazolidinones from 1 have been investigated: alkylations (Scheme 4), aminomethylations and hydroxymethylations (Scheme 5), aldol additions (Schemes 6 and 7), Michael additions (Schemes 9 and 10), and a (4 + 2) cycloaddition (Scheme II). The well-known features of reactions following the Evans methodology (yield, diastereoselectivity, dependence on conditions, counter ions, additives etc.) prevail in these transformations. Most products, however, have higher melting points and a much more pronounced crystallization tendency than those derived from conventional oxazolidinones, and can thus be purified by recrystallization, avoiding chromatography (Table 1). The disadvantage of 1 having a higher molecular weight (ca. 150 Da) than the non-phenyl-substituted auxiliary is more than compensated by the ease of its application, especially on large scale. A number of crystal structures of oxazolidinones derived from 1 and a TICl4 complex of an oxazolidinone are described and discussed in view of the diastereoselective-reaction mechanisms.

  DOI：

  10.1002/(sici)1522-2675(19981111)81:11<2093::aid-hlca2093>3.0.co;2-x
• 作为产物：
  描述：

  (R)-1-tert-butyl-N-((1-methoxymethoxy)-3,3-dimethyl-1,1diphenylbutan-2-yl)-1-(λ¹-oxidanyl)-λ³-sulfanamine 在 盐酸 、 碳酸氢钠 作用下， 以 甲醇 、 四氢呋喃 为溶剂， 反应 10.0h， 以99%的产率得到(R)-2-amino-3,3-dimethyl-1,1-diphenylbutan-1-ol
  参考文献：
  名称：

  二苯甲醇甲基/甲氧基甲基醚锂阴离子向非外消旋亚磺胺的加成：二步不对称合成二苯基脯氨醇甲基醚和手性（二苯基甲氧基甲基）胺

  摘要：

  由二苯基甲醇甲基和甲氧基甲基醚产生的锂阴离子加到非外消旋亚氨基亚胺上，以优异的非对映选择性和收率提供了相应的加成产物。MOM以及亚磺酰基的脱保护使得对映体纯的（二苯基羟甲基）胺具有极好的收率。该程序适用于两步合成二苯基脯氨醇，这是不对称催化中的优先配体。

  DOI：

  10.1021/acs.joc.8b01381

文献信息

• Influence des substituants sur la vitesse de racémisation des cétones à carbone dissymétrique en alpha
  作者：A. K. Mills、A. E. Wilder Smith

  DOI：10.1002/hlca.19600430705

  日期：——

  The rates of racemisation, under constant conditions of pH and temperature, of two series of ketones with an asymmetric C-atom in α have been determined. As would be expected, substituents in the α position to the keto group influence the rate of racemisation, and it has been found possible to assess the relative electron donating or electron attracting effect of aliphatic, aliphatic-aromatic or aromatic

  确定了在恒定的pH和温度条件下，α原子中具有不对称C原子的两个酮的外消旋化速率。如所期望的，在酮基的α位上的取代物影响外消旋化的速率，并且已经发现可以通过测量它们对脂族，脂族-芳族或芳族取代基的相对给电子或吸电子效应进行评估。含有所考虑的替代品的酮的外消旋化速率。
• Bimetallic titanium complex catalyzed enantioselective oxidation of thioethers using aqueous H₂O₂as a terminal oxidant
  作者：Prasanta Kumar Bera、Naveen Gupta、Sayed H. R. Abdi、Noor-ul H. Khan、Rukhsana I. Kureshy、Hari C. Bajaj

  DOI：10.1039/c5ra06528c

  日期：——

  This study represents a highly efficient sulfide oxidation catalytic system using a non-toxic Ti-catalyst and environmentally benign aqueous hydrogen peroxide.

  这项研究利用无毒的钛催化剂和环境友好的水性过氧化氢，构建了一种高效的硫化物氧化催化体系。
• METHOD FOR PRODUCING OPTICALLY ACTIVE BISAMIDO ALCOHOL COMPOUND
  申请人：Sumitomo Chemical Company, Limited

  公开号：EP1698616A1

  公开（公告）日：2006-09-06

  It is provided that a method for producing an optically active bisamidoalcohol compound represented by the formula (3): wherein R1 represents a C1-6 alkyl group, an optionally substituted phenyl group, an optionally substituted aralkyl group or a hydrogen atom, or two R1s, which are bonded to the same carbon atom, are bonded to form a ring together with the carbon atom to which they are bonded, R2 represents a C1-6 alkyl group, an optionally substituted phenyl group, a 1-naphthyl group, a 2-naphthyl group or an optionally substituted aralkyl group, R3 and R4 are the same or different, and each represents a hydrogen atom or C1-3 alkyl group, m represents an integer of 0 to 2, and * represents an asymmetric center, which comprises reacting an optically active aminoalcohol compound represented by the formula (1): wherein R1, R2 and * are as defined above, with a diester compound represented by the formula (2): wherein R3, R4 and m are as defined above and R5 represents a C1-3 alkyl group, in the presence of a lithium compound.

  本发明提供了一种生产由式（3）代表的光学活性双氨基醇化合物的方法： 其中 R1 代表 C1-6 烷基、任选取代的苯基、任选取代的芳烷基或氢原子，或两个 R1 与同一碳原子键合，与其键合的碳原子一起形成环、 R2 代表 C1-6 烷基、任选取代的苯基、1-萘基、2-萘基或任选取代的芳基、 R3 和 R4 相同或不同，各自代表氢原子或 C1-3 烷基、 m 代表 0 至 2 的整数，以及 * 代表不对称中心，其中包括与由式（1）代表的光学活性氨基醇化合物反应： 其中 R1、R2 和 * 如上定义、 与式 (2) 所代表的二酯化合物反应： 其中 R3、R4 和 m 如上定义，R5 代表 C1-3 烷基、 在锂化合物存在下。
• METHOD FOR PRODUCING OPTICALLY ACTIVE CYCLOALKYLIDENE BISOXAZOLINE COMPOUND AND INTERMEDIATE THEREOF
  申请人：Sumitomo Chemical Company, Limited

  公开号：EP1698617A1

  公开（公告）日：2006-09-06

  It is provided to an optically active cycloalkylidenebisamidoalcohol compound represented by the formula (3): wherein R1 represents a C1-6 alkyl group, an optionally substituted phenyl group, an optionally substituted aralkyl group or a hydrogen atom, or two R1s, which are bonded to the same carbon atom, are bonded to form a ring together with the carbon atom to which they are bonded, R2 represents a C1-6 alkyl group, an optionally substituted aralkyl group or an optionally substituted phenyl group and * represents an asymmetric center, a method for producing it and a method for producing an optically active cycloalkylidenebisoxazoline compound represented by the formula (4): wherein R1, R2 and * are as defined above, using thereof.

  提供了一种由式（3）代表的具有光学活性的环烷基亚氨基双酰胺醇化合物： 其中R1代表C1-6烷基、任选取代的苯基、任选取代的芳烷基或氢原子，或两个R1，它们键合到同一个碳原子上，与它们所键合的碳原子一起形成一个环，R2代表C1-6烷基、任选取代的芳烷基或任选取代的苯基，*代表一个不对称中心，还提供了一种生产该化合物的方法和一种生产由式(4)表示的光学活性环烷亚基双噁唑啉化合物的方法： 其中 R1、R2 和 * 如上文所定义，使用它们。
• Method for producing optically active bisamidoalcohol compound
  申请人：Itagaki Makoto

  公开号：US20070100163A1

  公开（公告）日：2007-05-03

  It is provided that a method for producing an optically active bisamidoalcohol compound represented by the formula (3): wherein R 1 represents a C1-6 alkyl group, an optionally substituted phenyl group, an optionally substituted aralkyl group or a hydrogen atom, or two R 1 s, which are bonded to the same carbon atom, are bonded to form a ring together with the carbon atom to which they are bonded, R 2 represents a C1-6 alkyl group, an optionally substituted phenyl group, a 1-naphthyl group, a 2-naphthyl group or an optionally substituted aralkyl group, R 3 and R 4 are the same or different, and each represents a hydrogen atom or C1-3 alkyl group, m represents an integer of 0 to 2, and * represents an asymmetric center, which comprises reacting an optically active aminoalcohol compound represented by the formula (1): wherein R 1 , R 2 and * are as defined above, with a diester compound represented by the formula (2): wherein R 3 , R 4 and m are as defined above and R 5 represents a C1-3 alkyl group, in the presence of a lithium compound.