(S)-3-(4-bromophenyl)-2,2-dimethyl-4-nitrobutanal

• 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: (S)-3-(4-bromophenyl)-2,2-dimethyl-4-nitrobutanal
• 英文别名: 3-(4-bromophenyl)-2,2-dimethyl-4-nitrobutanal；(3S)-3-(4-bromophenyl)-2,2-dimethyl-4-nitrobutanal
• 化学式: C₁₂H₁₄BrNO₃
• 分子量: 300.152
• InChiKey: YGRPUDQMUGUKKE-NSHDSACASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  17
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  62.9
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  反-4-溴-β-硝基苯乙烯 、 异丁醛 在 ethyl (1R,5R,9S,13S,14R)-14-[[(1S,2S)-2-aminocyclohexyl]carbamothioylamino]-5,9,13-trimethyltetracyclo[11.2.1.01,10.04,9]hexadecane-5-carboxylate 作用下， 以 水 为溶剂， 反应 30.0h， 以65%的产率得到(S)-3-(4-bromophenyl)-2,2-dimethyl-4-nitrobutanal
  参考文献：
  名称：

  两亲双功能伯胺-硫脲在有机或水性介质中促进异丁醛与硝基烯烃的高对映选择性迈克尔加成

  摘要：

  设计并合成了一类新的基于拜耳烷支架的手性两亲双功能硫脲，每个硫脲都含有伯氨基，从容易获得的天然产物异甜菊醇中合成。硫脲被证明可有效催化异丁醛和硝基烯烃之间的不对称迈克尔加成。手性硫脲 1a 提供 S 对映异构体，而 1b 提供 R 对映异构体，两者均具有高产率（高达 92 %）和高至极好的对映选择性（高达 98 %）。此外，反应在温和条件下在有机溶剂和水中均顺利进行。

  DOI：

  10.1002/ejoc.201101086

文献信息

• One-Pot Asymmetric Synthesis of γ-Nitroaldehydes from Aldehydes and Nitroalkanes through a Catalytic Tandem Reaction Using an Amino Acid Lithium Salt
  作者：Masanori Yoshida、Naoki Kitamikado、Hiroto Ikehara、Shoji Hara

  DOI：10.1021/jo102570p

  日期：2011.4.1

  One-pot asymmetric synthesis of γ-nitroaldehydes from aldehydes and nitroalkanes was achieved by a catalytic tandem reaction using a primary amino acid lithium salt, O-tert-butyldiphenylsilyl l-tyrosine lithium salt, as a catalyst. Various aryl, alkenyl, and alkyl aldehydes were converted into γ-nitroaldehydes via in situ generation of nitroalkenes.

  从醛和硝基烷烃γ-nitroaldehydes的一锅不对称合成，通过使用一级氨基酸锂盐，催化串联反应实现ø -叔-butyldiphenylsilyl升-酪氨酸锂盐，作为催化剂。各种芳基，烯基和烷基醛通过原位生成硝基烯烃转化为γ-硝基醛。
• NOVEL TRICYCLIC CHIRAL COMPOUNDS AND THEIR USE IN ASYMMETRIC CATALYSIS
  申请人：Loh Teck Peng

  公开号：US20110269972A1

  公开（公告）日：2011-11-03

  The present invention relates to a compound of general Formula (XX), its formation and its use in asymmetric catalysis. In Formula (XX) R and R 31 are independently —COOR 3 , —R 4 COOR 3 , —R 4 CHO, —R 4 COR 3 , —R 4 CONR 5 R 6 , —R 4 COX, —R 4 OP(═O)(OH) 2 , —R 4 P(═O)(OH) 2 ), —R 4 C(O)C(R 3 )CR 5 R 6 and —R 4 CO 2 COR 3 . In addition, R 31 may also be hydrogen. R 3 , R 5 and R 6 are independently hydrogen, an aliphatic group with a main chain having 1 to about 20 carbon atoms, an alicyclic group, an aromatic group, an arylaliphatic group or an arylalicyclic group, comprising 0 to about 3 heteroatoms independently selected from the group consisting of N, O, S, Se and Si. R 4 an aliphatic bridge with a main chain having 1 to about 20 carbon atoms, an alicyclic bridge, an aromatic bridge, an arylaliphatic bridge or an arylalicyclic bridge, comprising 0 to about 3 heteroatoms independently selected from the group consisting of N, O, S, Se and Si, and X is halogen. In Formula (XX) R 30 is —C(OH)R 1 R 2 or —COOR 14 , wherein R 1 , R 2 and R 14 are independently hydrogen, an aliphatic group with a main chain having 1 to about 20 carbon atoms, an alicyclic group, an aromatic group, an arylaliphatic group or an arylalicyclic group, comprising 0 to about 3 heteroatoms independently selected from the group consisting of N, O, S, Se and Si.

  本发明涉及一种一般式（XX）的化合物，其形成以及在不对称催化中的应用。在式（XX）中，R和R31独立地为—COOR3，—R4COOR3，—R4CHO，—R4COR3，—R4CONR5R6，—R4COX，—R4OP(═O)(OH)2，—R4P(═O)(OH)2，—R4C(O)C(R3)CR5R6和—R4CO2COR3。此外，R31也可以是氢。R3、R5和R6独立地为氢，具有主链含有1至约20个碳原子的脂肪基团，脂环基团，芳香基团，芳基脂基团或芳基脂环基团，包括0至约3个从N、O、S、Se和Si组成的杂原子。R4为具有主链含有1至约20个碳原子的脂肪桥，脂环桥，芳香桥，芳基脂桥或芳基脂环桥，包括0至约3个从N、O、S、Se和Si组成的杂原子，X为卤素。在式（XX）中，R30为—C(OH)R1R2或—COOR14，其中R1、R2和R14独立地为氢，具有主链含有1至约20个碳原子的脂肪基团，脂环基团，芳香基团，芳基脂基团或芳基脂环基团，包括0至约3个从N、O、S、Se和Si组成的杂原子。
• ORGANOCATALYST
  申请人：Chen Kwunmin

  公开号：US20110040104A1

  公开（公告）日：2011-02-17

  The present invention provides an organocatalyst of formula (I), wherein R 1 is —H, —OH, —O—Si(R 4 )(R 5 )(R 6 ) or C 1-6 alkoxy, in which R 4 , R 5 and R 6 are identical or different and independently selected from the group consisting of C 1-6 alkyl, phenyl and phenyl substituted with C 1-6 alkyl; R 2 is —OH or ═O; X 1 is one selected from the group consisting of —NH—, —S— and X 2 is one selected from the group consisting of —C(═O)—, —CH 2 — and and X 1 is different from X 2 . The high yield and enantioselectivity of an addition reaction are obtained by using the organocatalyst of the present invention.

  本发明提供了一种式(I)的有机催化剂，其中R1为—H，—OH，—O—Si(R4)(R5)(R6)或C1-6烷氧基，其中R4、R5和R6相同或不同，并且独立地选自由C1-6烷基、苯基和苯基上取代的C1-6烷基的群；R2为—OH或═O；X1为从—NH—、—S—中选择的一种；X2为从—C(═O)—、—CH2—中选择的一种；X1与X2不同。通过使用本发明的有机催化剂，可以获得加成反应的高产率和对映选择性。
• Effective and recyclable dendritic catalysts for the direct asymmetric Michael addition of aldehydes to nitrostyrenes
  作者：Yawen Li、Xin-Yuan Liu、Gang Zhao

  DOI：10.1016/j.tetasy.2006.07.004

  日期：2006.8

  Direct catalytic enantio- and diastereoselective Michael addition reaction of aldehydes to nitrostyrenes is described using a series of recyclable chiral 2-trimethylsilanyloxy-methyl-pyrrolidine-based dendritic catalysts. Good yields (up to 82%), and high diastereoselectivities (up to syn/anti = 95/5) and enantioselectivities (up to 99% ee) have been obtained.

  使用一系列可循环使用的手性2-三甲基甲硅烷基氧基-甲基-吡咯烷基树枝状催化剂描述了醛与硝基苯乙烯的直接催化对映和非对映选择性迈克尔加成反应。获得了良好的收率（高达82％），高的非对映选择性（高达syn / anti  = 95/5）和对映选择性（高达99％ee）。
• Primary amino acid lithium salt as a catalyst for asymmetric Michael addition of isobutyraldehyde with β-nitroalkenes
  作者：Atsushi Sato、Masanori Yoshida、Shoji Hara

  DOI：10.1039/b814804j

  日期：——

  Phenylalanine lithium salt was found to be an effective catalyst for asymmetric Michael addition of isobutyraldehyde with beta-nitroalkenes to give quaternary carbon-containing nitroalkanes.

  发现苯丙氨酸锂盐是异丁醛与β-硝基烯烃不对称迈克尔加成以生成含季碳的硝基链烷的有效催化剂。