(2R)-3-乙基-1-硝基戊烷-2-醇 | 688359-74-2

• 分子结构分类: 有机化合物 - 有机1,3-偶极化合物 - 烯丙基型1,3-偶极有机化合物
• 中文名称: (2R)-3-乙基-1-硝基戊烷-2-醇
• 英文名称: (R)-3-ethyl-1-nitropentan-2-ol
• 英文别名: (2R)-3-Ethyl-1-nitropentan-2-ol；(2R)-3-ethyl-1-nitropentan-2-ol
• CAS: 688359-74-2
• 化学式: C₇H₁₅NO₃
• 分子量: 161.201
• InChiKey: YYQPBRSFKYALEQ-ZETCQYMHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  11
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  66
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  2-乙基丁醛 、 硝基甲烷 在 12,18,21,27-Tetrazaheptacyclo[26.8.0.02,11.03,8.014,19.020,25.031,36]hexatriaconta-1(28),2(11),3,5,7,9,12,14(19),15,17,20(25),21,23,26,29,31,33,35-octadecaene-13,26-diol 作用下， 以 甲醇 为溶剂， 反应 8.0h， 以89%的产率得到(2R)-3-乙基-1-硝基戊烷-2-醇
  参考文献：
  名称：

  A new series of bipyridine based chiral organocatalysts for enantioselective Henry reaction

  摘要：

  我们报道了一类基于联萘酚的新型手性有机催化剂的设计与合成，这些催化剂可以作为无金属有机催化剂在亨利反应中表现出很好的产率和對映选择性。

  DOI：

  10.1039/c6nj01045h

文献信息

• Guanidine-Thiourea Bifunctional Organocatalyst for the Asymmetric Henry (Nitroaldol) Reaction
  作者：Yoshihiro Sohtome、Yuichi Hashimoto、Kazuo Nagasawa

  DOI：10.1002/adsc.200505148

  日期：2005.10

  Novel bifunctional catalysts having guanidine and thiourea functional groups were developed for the asymmetric Henry (nitroaldol) reaction. Various structural developments of the catalyst revealed that the compound having an octadecyl-substituted guanidine and thiourea groups linked with a chiral spacer derived from phenylalanine, i.e., 1e, efficiently promoted the Henry reaction. This bifunctional

  开发了具有胍和硫脲官能团的新型双功能催化剂用于不对称的亨利（硝基醛）反应。催化剂的各种结构发展表明，具有十八烷基取代的胍和硫脲基团与衍生自苯丙氨酸的手性间隔基即1e连接的化合物有效地促进了亨利反应。这种双功能有机催化剂1e还具有脂族环醛和支链脂族醛（82-90％ee）的高不对称诱导作用。
• Enantioselective Henry reaction catalyzed by a C2-symmetric bis(oxazoline)–Cu(OAc)2·H2O complex
  作者：Sandeep K. Ginotra、Vinod K. Singh

  DOI：10.1039/b714153j

  日期：——

  A C(2)-symmetric diethyl (i)Pr-bis(oxazoline)-Cu(OAc)(2).H(2)O was found to be an efficient catalyst for catalyzing an enantioselective Henry reaction between nitromethane and various aldehydes to provide beta-hydroxy nitroalkanes with high chemical yields (up to 95%) and enantiomeric excesses (up to 97%).

  AC（2）-对称的二乙基（i）Pr-双（恶唑啉）-Cu（OAc）（2）.H（2）O被发现是催化硝基甲烷和各种醛之间的对映选择性亨利反应的有效催化剂具有高化学收率（高达95％）和对映体过量（高达97％）的β-羟基硝基烷。
• Enantioselective Henry reaction catalyzed by C2-symmetric chiral diamine–copper(II) complex
  作者：Sermadurai Selvakumar、Dhanasekaran Sivasankaran、Vinod K. Singh

  DOI：10.1039/b904254g

  日期：——

  A copper(II) complex of C2-symmetric diamine has been proved to be an efficient catalyst for the enantioselective Henry reaction between nitroalkanes and various aldehydes to provide β-hydroxy nitroalkanes in high yields (up to 97%), moderate diastereoselectivities (up to 71:29) and excellent enantiomeric excesses (up to 96%). The chiral nitroaldol adduct obtained has been further converted into chiral

  事实证明，C 2对称二胺的铜（II）络合物是硝基链烷烃与各种醛之间对映选择性亨利反应的有效催化剂，以高产率（高达97％），中等非对映选择性（高达90％以上）提供β-羟基硝基链烷烃。至71:29）和出色的对映体过量（高达96％）。所获得的手性硝基醛醇加合物在几个步骤中已进一步转化为手性氮丙啶。
• A Highly Effective Bis(sulfonamide)-Diamine Ligand: A Unique Chiral Skeleton for the Enantioselective Cu-Catalyzed Henry Reaction
  作者：Wei Jin、Xincheng Li、Yongbo Huang、Fan Wu、Boshun Wan

  DOI：10.1002/chem.201000964

  日期：——

  As a unique chiral skeleton, the newly developed bis(sulfonamide)–diamine, which contains both diamine and bis(sulfonamide) moieties, was a highly effective ligand for the asymmetric Cu(OAc)2‐catalyzed Henry reaction between nitromethane and aldehydes with a low catalyst loading at room temperature (see scheme). Both aliphatic and aromatic aldehydes gave excellent enantioselectivities of up to 99 % ee

  壁橱里的骷髅！作为独特的手性骨架，新开发的双（磺酰胺）-二胺同时含有二胺和双（磺酰胺）部分，是不对称Cu（OAc）2催化硝基甲烷与醛之间的亨利反应的高效配体。室温下催化剂负载低（请参阅方案）。脂族和芳族醛均具有高达99％ee的出色对映选择性 。
• A Highly Diastereo- and Enantioselective Copper(I)-Catalyzed Henry Reaction Using a Bis(sulfonamide)−Diamine Ligand
  作者：Wei Jin、Xincheng Li、Boshun Wan

  DOI：10.1021/jo101932a

  日期：2011.1.21

  bis(sulfonamide)−diamine (BSDA) ligands were synthesized from commercially available chiral α-amino alcohols and diamines. The chiral BSDA ligand 3a, coordinated with Cu(I), catalyzes the enantioselective Henry reaction with excellent enantioselectivity (up to 99%). Moreover, with the assistance of pyridine, a CuBr−3a system promotes the diastereoselective Henry reaction with various aldehyde substrates

  从市售的手性α-氨基醇和二胺合成了一系列的双（磺酰胺）-二胺（BSDA）配体。与Cu（I）配位的手性BSDA配体3a以优异的对映选择性（高达99％）催化对映选择性亨利反应。此外，借助吡啶，CuBr- 3a系统可促进与各种醛底物的非对映选择性亨利反应，并以高达99％的收率和32.3：1的顺/反选择性提供相应的顺选择性加合物。顺式加合物的对映体过量为97％。