[1-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-meth-(E)-ylidene]-(4-methoxy-phenyl)-amine | 141781-24-0

• 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: [1-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-meth-(E)-ylidene]-(4-methoxy-phenyl)-amine
• CAS: 141781-24-0
• 化学式: C₁₃H₁₇NO₃
• 分子量: 235.283
• InChiKey: SPJFRTAOUXIUGP-ACLQVGRQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.55
• 重原子数：
  17.0
• 可旋转键数：
  3.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.46
• 拓扑面积：
  40.05
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  [1-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-meth-(E)-ylidene]-(4-methoxy-phenyl)-amine 在 palladium on activated charcoal 氢气 、 三乙胺 作用下， 以 甲醇 、 二氯甲烷 、 乙酸乙酯 为溶剂， -78.0~25.0 ℃ 、101.33 kPa 条件下， 生成 (+)-(3R,4R)-2-(4-methoxyphenyl)-3-[(S)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,5-diazaspiro[3.4]octan-1-one
  参考文献：
  名称：

  不对称环状酮与亚胺的非对映选择性[2 + 2]-环加成反应：修饰脯氨酸的合成及反应机理的理论研究

  摘要：

  对映体纯的修饰脯氨酸衍生物的合成是通过使用螺状β-内酰胺作为起始原料而完成的，该原料依次通过不对称环状烯酮与光学活性亚胺的[2 + 2]-环加成而制得。[2 + 2]-环加成反应的理论研究，使用密度泛函方法，对所观察到的Staudinger反应的立体选择性的起源提供了见解。将螺β-内酰胺转化为N- Boc衍生物，并进行亲核开环，得到相应的对映体纯的修饰脯氨酸衍生物，其被分离为正交保护的化合物。

  DOI：

  10.1021/jo040163w
• 作为产物：
  描述：

  甲氧苯胺 、 (R)-(+)-2,2-二甲基-1,3-二氧戊环-4-甲醛 生成 [1-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-meth-(E)-ylidene]-(4-methoxy-phenyl)-amine
  参考文献：
  名称：

  Stereocontrol by the carbon-fluorine bond and its application to asymmetric synthesis of 3-fluoro .beta.-lactams

  摘要：

  Optically active 3-fluoro-beta-lactams 4 and 5 were prepared via a ketene-imine cycloaddition reaction using fluoroacetyl chloride and an imine derived from (R)-glyceraldehyde acetonide. The high stereoselectivity observed can be rationalized as a consequence of stereoelectronic effects. Deprotonated beta-lactams 4 and 12 were reacted with alkylating agents to give exclusively cis-3-alkyl-substituted derivatives of 3-fluoro beta-lactams. The directed aldol reaction of beta-lactams 4 and 12 with aldehydes and ketones provides cis-3-hydroxyalkyl derivatives with high stereoselectivity; however, diastereoisomeric control was not maintained at the hydroxylated carbon atom. The desired stereochemistry in the side chain was achieved by reduction of 3-acetyl-3-fluoro beta-lactam 22. The lithium enolates of beta-lactams 4 and 12 have been investigated by low-temperature F-19 NMR studies.

  DOI：

  10.1021/jo00061a019

文献信息

• Straightforward Asymmetric Entry to Highly Functionalized 3-Substituted 3-Hydroxy-β-lactams via Baylis−Hillman or Bromoallylation Reactions
  作者：Benito Alcaide、Pedro Almendros、Cristina Aragoncillo、Raquel Rodríguez-Acebes

  DOI：10.1021/jo035472l

  日期：2004.2.1

  The reaction of various activated vinyl systems, including 2-cyclopenten-1-one, with enantiopure azetidine-2,3-diones 1 was promoted by DABCO to afford the corresponding optically pure Baylis−Hillman adducts 2 without detectable epimerization. However, the reaction of α-keto lactams 1 with but-3-yn-2-one was not as successful, giving the corresponding β-halo Baylis−Hillman adduct in low yield. Metal-mediated

  DABCO促进了各种活化的乙烯基系统（包括2-环戊烯-1-酮）与对映体纯的氮杂环丁烷2,3-二酮1的反应，得到了相应的光学纯的Baylis-Hillman加合物2，而没有可检测的差向异构化。然而，α-酮内酰胺1与but-3-yn-2-one的反应不那么成功，从而以低收率得到了相应的β-卤代Baylis-Hillman加合物。在水介质中研究了金属介导的2，3-二溴丙烯与氮杂环丁烷-2，3-二酮1之间的溴代烯丙基化反应。令人惊讶地，铟不能促进α-酮内酰胺1的溴代烯丙基化反应，但是Sn-Hf 4 Cl促进了酮1的溴代烯丙基化。高效地进行了操作，以得到作为单一非对映异构体的溴高烯丙基醇5。在此基础上，开发了用于潜在生物活性的3个取代的3-羟基-β-内酰胺部分的不对称合成的简单快速的方法。
• Vinyl-β-lactams as Efficient Synthons. Eco-friendly Approaches via Microwave Assisted Reactions
  作者：Maghar S Manhas、Bimal K Banik、Arvind Mathur、John E Vincent、Ajay K Bose

  DOI：10.1016/s0040-4020(00)00409-9

  日期：2000.7

  interest—such as isocephalosporins, carbapenem and thienamycin intermediates, and pyrrolidine alkaloids. Convenient methods are described for obtaining both enantiomers of some of these synthons. Microwave-induced Organic Reaction Enhancement (MORE) chemistry techniques allow highly accelerated synthesis of variously substituted vinyl-β-lactams using limited amounts of solvents and with efficient stereocontrol—thus

  乙烯基-β-内酰胺类化合物是多种具有生物医学意义的化合物的有效合成子，例如异头孢菌素，碳青霉烯和硫霉素中间体以及吡咯烷生物碱。描述了获得一些这些合成子的两种对映体的简便方法。微波诱导的有机反应增强（MORE）化学技术可使用有限的溶剂和有效的立体控制，以高度加速的速度合成各种取代的乙烯基-β-内酰胺，从而实现“高原子经济性”。微波对键角和键长以及过渡态的几何形状的影响（如果有的话）还不是很清楚。但是，在开放系统中微波辐射下的反应是快速，安全的，
• N1–C4 β-Lactam Bond Cleavage in the 2-(Trimethylsilyl)thiazole Addition to β-Lactam Aldehydes: Asymmetric Synthesis of Spiranic and Tertiary α-Alkoxy-γ-keto Acid Derivatives
  作者：Benito Alcaide、Pedro Almendros、María C. Redondo

  DOI：10.1002/ejoc.200700231

  日期：2007.8

  Starting substrates, enantiopure spiranic or 3-substituted 3-alkoxy-4-oxoazetidine-2-carbaldehydes, were prepared from (R)-2,3-O-isopropylideneglyceraldehyde derived azetidine-2,3-diones by sequential Barbier-type addition reactions followed by hydroxy functionalization and aldehyde unmasking. The reaction between the above β-lactam aldehydes and 2-(trimethylsilyl)thiazole (TMST) gave as major products

  起始底物，对映体纯螺环或 3-取代 3-烷氧基-4-氧代氮杂环丁烷-2-甲醛，由 (R)-2,3-O-异丙基甘油醛衍生的氮杂环丁烷-2,3-二酮通过顺序巴比耶型加成反应制备然后是羟基官能化和醛暴露。上述 β-内酰胺醛与 2-(三甲基甲硅烷基)噻唑 (TMST) 之间的反应产生构象受限的 α-烷氧基-γ-酮酰胺作为主要产物，其既可以被认为是醛醇，也可以被认为是 Passerini 型产物，通过N1–C4 β-内酰胺键断裂。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
• Highly diastereoselective synthesis of β-lactams by addition of titanium enolates of 2-pyridyl thioesters to chiral imines
  作者：Rita Annunziata、Mauro Cinquini、Franco Cozzi、Pier Giorgio Cozzi

  DOI：10.1016/s0040-4039(00)91874-4

  日期：1992.2

  Addition of titanium enolates of 2-pyridyl thioesters to chiral imines derived from alkoxy aldehydes occurs with good diastereofacial control, and opens a simple access to important carbapenem antibiotics.

  将2-吡啶基硫酯的钛烯醇盐添加到衍生自烷氧基醛的手性亚胺中，可以很好地控制非对映表面，从而轻松获得重要的碳青霉烯类抗生素。
• Metal-Promoted Allylation, Propargylation, or Allenylation of Azetidine-2,3-diones in Aqueous and Anhydrous Media. Application to the Asymmetric Synthesis of Densely Functionalized 3-Substituted 3-Hydroxy-β-lactams
  作者：Benito Alcaide、Pedro Almendros、Cristina Aragoncillo、Raquel Rodríguez-Acebes

  DOI：10.1021/jo015704l

  日期：2001.7.1

  Metal-mediated carbonyl allylation, allenylation, and propargylation of optically pure azetidine-2,3-diones were investigated in both anhydrous and aqueous environments. Different metals promoters showed varied regioselectivities on product formation during allenylation/propargylation reactions of the keto-beta -lactams. The stereochemistry of the new C3-substituted C3-hydroxy quaternary center was controlled by placing a chiral auxiliary at C4. In this way, the coupling of azetidine-2,3-diones with a variety of propenyl-, propynyl-, and allenylmetal reagents offers a convenient asymmetric entry to potentially bioactive 3-substituted 3-hydroxy-beta -lactams.