(3S,4R)-4-(2-bromophenyl)-3,4-dihydroxybutan-2-one

• 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: (3S,4R)-4-(2-bromophenyl)-3,4-dihydroxybutan-2-one
• 化学式: C₁₀H₁₁BrO₃
• 分子量: 259.1
• InChiKey: QUKMNAUHZXOBLZ-NXEZZACHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.9
• 重原子数：
  14
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  57.5
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  羟基丙酮 、 邻溴苯甲醛 在 L-Leu-NH[(S)-1-OH-1,1-(3,5-(CF₃)2C₆H₃)2-3-Me-butan-2-yl] 作用下， 以 xylene 为溶剂， 反应 36.0h， 生成 4-(2-bromophenyl)-3,4-dihydroxybutan-2-one 、 (3S,4R)-4-(2-bromophenyl)-3,4-dihydroxybutan-2-one
  参考文献：
  名称：

  Design of Organocatalysts for Asymmetric Direct Syn-Aldol Reactions

  摘要：

  Two new organocatalysts 3a and 3b, derived from L-leucine and (S)-beta-amino alcohols that were prepared from L-valine, were designed and afforded the direct syn-aldol reactions of a wide scope of aldehydes with various ketones with an excellent diastereomeric ratio of up to >20/1 and enantioselectivities of up to 99% ee.

  DOI：

  10.1021/ol701798x

文献信息

• Highly Efficient Organocatalyzed Direct Asymmetric Aldol Reactions of Hydroxyacetone and Aldehydes
  作者：Xiaoyu Wu、Zhixiong Ma、Zhengqing Ye、Shan Qian、Gang Zhao

  DOI：10.1002/adsc.200800558

  日期：2009.1

  Novel organocatalysts derived from L-threonine and L-leucine have been synthesized for catalyzing direct aldol reactions of hydroxycetone and unactivated aliphatic aldehydes with as low as 2 mol% loading of the catalyst, good to excellent yields and excellent enantioselectivities have been achieved for aliphatic aldehydes, whereas aromatic aldehydes yield only moderate enantioselectivities.

  合成了衍生自L-苏氨酸和L-亮氨酸的新型有机催化剂，用于催化羟基丙酮与未活化的脂族醛的直接醛醇缩合反应，催化剂的负载量低至2 mol％，对脂族醛具有良好至优异的收率和优异的对映选择性。 ，而芳族醛仅产生中等对映选择性。
• Highly Enantioselective Direct <i>syn</i>- and <i>anti</i>-Aldol Reactions of Dihydroxyacetones Catalyzed by Chiral Primary Amine Catalysts
  作者：Sanzhong Luo、Hui Xu、Long Zhang、Jiuyuan Li、Jin-Pei Cheng

  DOI：10.1021/ol703023t

  日期：2008.2.1

  We present herein simple primary-tertiary diamine-Bronsted acid conjugates that catalyze both syn- and anti-adol reactions of dihydroxyacetones (DHAs) with high diastereoselectivities and enantioselectivities. This type of organocatalysts functionally mimics all four DHA aldolases, namely L-fuculose-1-phosphate aldolase, D-tagatose-1,6-diphosphate aldolase, D-fructose-1,6-diphosphate aldolase, and L-rhamnulose-1-phosphate aldolase.
• Design of Organocatalysts for Asymmetric Direct Syn-Aldol Reactions
  作者：Xiao-Ying Xu、Yan-Zhao Wang、Liu-Zhu Gong

  DOI：10.1021/ol701798x

  日期：2007.10.1

  Two new organocatalysts 3a and 3b, derived from L-leucine and (S)-beta-amino alcohols that were prepared from L-valine, were designed and afforded the direct syn-aldol reactions of a wide scope of aldehydes with various ketones with an excellent diastereomeric ratio of up to >20/1 and enantioselectivities of up to 99% ee.