(3aR,7aR)-2-((2-bromobenzylidene)amino)-1,3-diisopropyloctahydrobenzo[d][1,3,2]diazaphosphole 2-oxide | 1186139-54-7

• 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: (3aR,7aR)-2-((2-bromobenzylidene)amino)-1,3-diisopropyloctahydrobenzo[d][1,3,2]diazaphosphole 2-oxide
• CAS: 1186139-54-7
• 化学式: C₁₉H₂₉BrN₃OP
• 分子量: 426.337
• InChiKey: KKQWOIYZYMOUPO-RTBURBONSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.72
• 重原子数：
  25.0
• 可旋转键数：
  4.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.63
• 拓扑面积：
  35.91
• 氢给体数：
  0.0
• 氢受体数：
  1.0

反应信息

• 作为反应物：
  描述：

  二苯亚甲基甘氨酸乙酯 、 (3aR,7aR)-2-((2-bromobenzylidene)amino)-1,3-diisopropyloctahydrobenzo[d][1,3,2]diazaphosphole 2-oxide 在 正丁基锂 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 反应 0.67h， 生成 ethyl (2S,3S)-3-(2-bromophenyl)-3-(((3aR,7aR)-1,3-diisopropyl-2-oxidooctahydrobenzo[d][1,3,2]diazaphosphol-2-yl)amino)-2-((diphenylmethylene)amino)propanoate
  参考文献：
  名称：

  Chiral N-phosphonyl imine chemistry: Asymmetric synthesis of α,β-diamino esters by reacting phosphonyl imines with glycine enolates

  摘要：

  Chiral phosphonyl imines attached with N-isopropyl protection group were found to react with lithium glycine enolates under convenient conditions to give alpha,beta-diamino esters. Thirteen examples have been examined in good to excellent chemical yields (85-97%) diastereoselectivity (up to 99% de). By treating with HBr at room temperature, the chiral auxiliary can be readily removed and recycled. The absolute structure has been unambiguously determined by converting a product to a known sample. Published by Elsevier Ltd.

  DOI：

  10.1016/j.bmcl.2009.03.001
• 作为产物：
  描述：

  (3aR,7aR)-2-bromo-1,3-diisopropyloctahydrobenzo[d][1,3,2]diazaphosphole 2-oxide 在 titanium(IV) isopropylate 、 氨 作用下， 以 二氯甲烷 、 甲苯 为溶剂， 反应 12.0h， 生成 (3aR,7aR)-2-((2-bromobenzylidene)amino)-1,3-diisopropyloctahydrobenzo[d][1,3,2]diazaphosphole 2-oxide
  参考文献：
  名称：

  通过手性N-膦酰基亚胺的布朗斯台德酸催化的不对称氮杂-Baylis-Hillman反应合成非对映体富集的α-氨基甲基烯酮。

  摘要：

  报道了一种通过（R）-CSA催化的不对称氮杂-Baylis-Hillman反应制备α-氨基甲基烯酮的有效手性GAP方法。在温和的条件下和方便的GAP技术下可获得优异的收率和高非对映选择性。通过X射线衍射对N-膦酰基亚胺和手性烯胺酮的绝对构型的确认为GAP化学的手性机理提供了明确的解释。

  DOI：

  10.1002/asia.201901734

文献信息

• Group-Assisted Purification Chemistry for Asymmetric Mannich-type Reaction of Chiral <i>N</i>-Phosphonyl Imines with Azlactones Leading to Syntheses of α-Quaternary α,β-Diamino Acid Derivatives
  作者：Haowei Zhang、Zhen Yang、Brian Nlong Zhao、Guigen Li

  DOI：10.1021/acs.joc.7b02556

  日期：2018.1.19

  An asymmetric Mannich-type reaction between chiral N-phosphonyl imines and azlactones [oxazol-5(4H)-ones] has been established under convenient conditions at room temperature. The reaction was performed without using any bases, additives, or catalysts to achieve up to excellent chemical yields and diastereoselectivity for 32 examples. The α-quaternary syn-α,β-diamino acid products were purified simply

  在室温下方便的条件下，建立了手性N-膦酰基亚胺和a内酯[恶唑-5（4 H）-ones]之间的不对称曼尼希型反应。在不使用任何碱，添加剂或催化剂的情况下进行反应，以实现高达32个实例的优异的化学收率和非对映选择性。α-季顺-α，β二氨基酸产物简单地通过洗涤纯化，用助溶剂，粗混合物，继组辅助纯化化学/技术，而不涉及传统的色谱法或重结晶法。辅助部件可以很容易地取出并回收再利用。通过X射线结构分析明确分配了绝对构型。
• The GAP chemistry for chiral N-phosphonyl imine-based Strecker reaction
  作者：Parminder Kaur、Walter Wever、Suresh Pindi、Raizada Milles、Peng Gu、Min Shi、Guigen Li

  DOI：10.1039/c1gc15029d

  日期：——

  Chiral N-phosphonyl imines were found to be efficient electrophiles for reaction with diethylaluminium cyanide, a non-volatile and inexpensive cyanide source. The reaction produced chiral Strecker adducts, α-aminonitriles, in excellent chemical yields (94–98%) and diastereoselectivities (95 : 5 to >99%). This synthesis was confirmed to follow the GAP chemistry (group-assistant-purification chemistry) process, which can avoid traditional chromatography and recrystallization purifications, i.e., the pure chiral α-aminonitriles bearing a chiral N-phosphonyl group can be simply obtained by washing the solid crude products with hexane. The chiral N-phosphonyl auxiliary can be easily cleaved under mildly acidic conditions and quantitatively recycled by a one-time extraction with n-butanol.

  研究发现，手性 N-膦酰亚胺是与氰化二乙基铝（一种非挥发性的廉价氰化物来源）反应的高效亲电体。反应生成了手性 Strecker 加合物--α-氨基硝酰胺，化学收率（94-98%）和非对映选择性（95:5->99%）都非常好。经证实，该合成采用了 GAP 化学（基团辅助纯化化学）工艺，可避免传统的色谱法和重结晶纯化，即只需用正己烷洗涤固体粗产物，即可获得带有手性 N-膦酰基的纯手性 α-氨基硝酸酯。手性 N-膦酰基助剂可在弱酸性条件下轻松裂解，并通过正丁醇一次性萃取定量回收。
• Chiral N-phosphonyl imine chemistry: an efficient asymmetric synthesis of chiral N-phosphonyl propargylamines
  作者：Parminder Kaur、Gaurav Shakya、Hao Sun、Yi Pan、Guigen Li

  DOI：10.1039/b923914f

  日期：——

  A variety of substituted chiral propargylamines have been synthesized by reacting chiral N-phosphonylimines with lithium aryl/alkyl acetylides. Seventeen examples were studied to give excellent yields (>90%) and diastereoselectivities (96 : 4 to 99 : 1). It was found that the types of bases for generating acetylides and solvents are crucial for effectiveness of this asymmetric reaction. In addition, N,N-isopropyl group on chiral N-phosphonylimine auxiliary was proven to be superior to other protecting groups in controlling diastereoselectivity.

  通过手性 N-膦酰亚胺与芳基/烷基乙酰化锂反应，合成了多种取代的手性丙炔胺。对 17 个实例进行了研究，结果表明它们具有极高的产率（大于 90%）和非对映选择性（96:4 至 99:1）。研究发现，生成乙酰化物的碱和溶剂类型对这一不对称反应的有效性至关重要。此外，在控制非对映选择性方面，手性 N-膦酰亚胺辅助剂上的 N,N-异丙基被证明优于其他保护基团。
• Research Article: Asymmetric Hydrophosphylation of Chiral N-Phosphonyl Imines Provides an Efficient Approach to Chiral α-Amino Phosphonates
  作者：Parminder Kaur、Walter Wever、Trideep Rajale、Guigen Li

  DOI：10.1111/j.1747-0285.2010.01013.x

  日期：2010.10

  Chiral N‐phosphonylimines were found to react with lithium phosphites to provide various substituted chiral α‐amino phosphonates in excellent yields (94–97%) and diastereoselectivities (93:7–99:1). The types of bases utilized for generating the nucleophile are crucial for the effectiveness of asymmetric induction. In addition, N,N‐isopropyl group on chiral N‐phosphonylimine auxilliary was proven to be superior to other protecting groups in controlling diastereoselectivity. The absolute configuration was unambiguously determined by converting a chiral α‐amino phosphonate into its authentic N‐Cbz derivative.