(+)-cis-(1-p-methoxyphenyl)-4-formyl-3-[(S)-4-phenyl-2-oxooxazolidin-3-yl]-2-azetidinone | 183066-64-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 内酰胺类
• 英文名称: (+)-cis-(1-p-methoxyphenyl)-4-formyl-3-[(S)-4-phenyl-2-oxooxazolidin-3-yl]-2-azetidinone
• 英文别名: (2S,3S)-1-(4-methoxyphenyl)-4-oxo-3-[(4S)-2-oxo-4-phenyl-1,3-oxazolidin-3-yl]azetidine-2-carbaldehyde
• CAS: 183066-64-0
• 化学式: C₂₀H₁₈N₂O₅
• 分子量: 366.373
• InChiKey: OYIFSQVSCUQWIC-KURKYZTESA-N

物化性质

• 沸点：
  719.4±60.0 °C(Predicted)
• 密度：
  1.417±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  27
• 可旋转键数：
  5
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  76.2
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  甲氧羰基亚甲基三苯基正膦 、 (+)-cis-(1-p-methoxyphenyl)-4-formyl-3-[(S)-4-phenyl-2-oxooxazolidin-3-yl]-2-azetidinone 在 sodium carbonate 作用下， 以 水 、 乙腈 、 乙醚 为溶剂， 反应 56.0h， 以67%的产率得到(+)-(3S,4S)-4-(2-methoxycarbonyl)ethenyl-1-(p-methoxyphenyl)-3-[(S)-4-phenyl-2-oxo-oxazolidin-3-yl]-2-azetidinone
  参考文献：
  名称：

  碱基促进的顺式4-甲酰基-2-氮杂环丁烷酮的异构化：化学选择性C4表异构化与重排成环状烯胺酮。

  摘要：

  描述了两种简单，有效和互补的方法，用于顺式-4-甲酰基-2-氮杂环丁烷酮1-3的区域特异性C4表异构化。第一种方法是在苄基三丁基溴化铵（3-4 mol％）作为相转移催化剂的情况下，在室温下于苯的非均相介质中使用40％的二甲胺水溶液作为试剂。该转化耐受2-氮杂环丁酮环的C 3上的烷基，烯基，炔基，芳基和烷氧基取代基。然而，这种异构化的局限性如下：（i）仅可使用N-（对甲氧基苯基）-β-内酰胺，并且（ii）转化与键合于2-氮杂环丁酮C3位的杂原子取代基的相容性较低。环。对于这些问题的高度通用的解决方案取决于在不同溶剂中使用碳酸钠作为异构化试剂。

  DOI：

  10.1021/jo991984h
• 作为产物：
  描述：

  N,N'-bis(4-methoxyphenyl)diazabutadiene 、 2-(4(S)-phenyloxazolidin-2-on-3-yl)acetyl chloride 在 盐酸 、 三乙胺 作用下， 生成 (+)-cis-(1-p-methoxyphenyl)-4-formyl-3-[(S)-4-phenyl-2-oxooxazolidin-3-yl]-2-azetidinone
  参考文献：
  名称：

  C4,C4‘-Bis-β-lactam to Fused Bis-γ-lactam Rearrangement

  摘要：

  Optically pure cis,cis-C4,C4'-bis-beta-lactams 1a-d are obtained in good to excellent yields, in a single step, following two different approaches. Staudinger reaction of (S)-(4-phenyl-2-oxooxazolidinyl)acetyl chloride (2a) and p-anisyldiimine gave the corresponding bis-beta-lactam la as a single enantiomer. The reaction of glyoxal diimine derived from (S)-alpha-phenylethylamine and different alkoxy-substituted acid chlorides gave diastereomeric mixtures of cis,cis-bis-beta-lactams 1b-d, enantiomers at the bicyclic skeleton. The configuration of all compounds has been determined by X-ray diffraction analysis of enantiomerically pure aldehyde 4a and bis-beta-lactam Ib-a. The remaining bicyclic lactams have been chemically correlated to compound 1b-alpha and their configurations assigned. Starting from enantiomerically pure 4-formyl-2-azetidinone 4b, sequential imine formation and ketene cycloaddition allowed the synthesis of differently substituted, optically pure cis,cis-C4,C4'-bis-beta-lactams If-i in good overall yields. C4,C4'-Bis-beta-lactams smoothly rearranged to fused trans,trans-bis-gamma-lactams 7 upon basic treatment (NaOMe/MeOH) in a totally stereoselective process. The presence of alkyl groups attached to the lactam nitrogen inhibits the rearrangement. Differently substituted (aryl and alkyl substituents in either rings) bicyclic p-lactam systems gave the selective opening of the ring with the aromatic substituent attached to the lactam nitrogen. Monocyclic 2-azetidinones 8 with an amino ester side chain at C4 are then obtained. The synthesis of trans,cis-C4,C4'-bis-beta-lactam Ij and trans,trans-C4,C4'-bis-beta-lactam 11 has also been effected in the racemic form. Compound Ij with a trans,cis stereochemistry rearranged to cis,trans-bis-gamma-lactam 7d in the presence of base while the trans,trans-bicycle 11 gave monocyclic 2-azetidinone 8c with an amino ester side chain. Finally, trans,trans-bis-gamma-lactam 11 can be synthesized in a single step from glyoxal diimine 3a employing an excess of lithium isovalerate. A reaction pathway to account for all the observed data is proposed.

  DOI：

  10.1021/jo960826c

文献信息

• Stereoselective Synthesis of 3-Substituted 4-(Formyloxy)-2-azetidinones by the Unusual Baeyer−Villiger Reaction of β-Lactam Aldehydes. Scope and Synthetic Applications
  作者：Benito Alcaide、Moustafa F. Aly、Miguel A. Sierra

  DOI：10.1021/jo9612685

  日期：1996.1.1

  The Baeyer-Villiger oxidation of 4-formyl-beta-lactams 1 with m-CPBA gave 4-(formyloxy) beta-lactams 2 in a simple, efficient, and totally stereoselective process. This reaction is one of the scarce examples of the preferred migration of a carbon moiety in an aliphatic aldehyde. The influence of the substituents at N1 and C3 of the four-membered ring in the Baeyer-Villiger rearrangement has been studied. Thus, alkyl, alkenyl, aryl, and alkyloxy 3-substituted-1-(p-anisyl)-2-azetidinone 1 form exclusively 4-(formyloxy) beta-lactams 2. Amide or acetoxy substituents at C3 of the four-membered ring produce mixtures of 4-(formyloxy) beta-lactams 2 and 4-carboxy beta-lactams 5. The exclusive formation of carboxy derivatives is observed sometimes for 1-alkyl-substituted-2-azetidinones 1. 4-(Formyloxy) beta-lactams 2 are suitable starting materials to prepare different 4-unsubstituted beta-lactams 9 using beta-hydroxy amides 8 as isolable intermediates. The overall transformation 4-formyl-2-azetidinone to 4-unsubstituted beta-lactam is an easy and convenient stereoselective route to these interesting types of compounds.
• Base-Promoted Isomerization of <i>cis</i>-4-Formyl-2-azetidinones:  Chemoselective <i>C</i>4-Epimerization vs Rearrangement to Cyclic Enaminones
  作者：Benito Alcaide、Moustafa F. Aly、Carolina Rodríguez、Alberto Rodríguez-Vicente

  DOI：10.1021/jo991984h

  日期：2000.6.1

  N-(p-methoxyphenyl)-beta-lactams can be used, and (ii) transformation is less compatible with heteroatomic substituents bonded to the C3 position of the 2-azetidinone ring. A highly general solution to these problems relies on the use of sodium carbonate as the isomerization reagent in different solvents. We also describe a novel base-promoted rearrangement of the beta-lactam ring to cyclic enaminones 6

  描述了两种简单，有效和互补的方法，用于顺式-4-甲酰基-2-氮杂环丁烷酮1-3的区域特异性C4表异构化。第一种方法是在苄基三丁基溴化铵（3-4 mol％）作为相转移催化剂的情况下，在室温下于苯的非均相介质中使用40％的二甲胺水溶液作为试剂。该转化耐受2-氮杂环丁酮环的C 3上的烷基，烯基，炔基，芳基和烷氧基取代基。然而，这种异构化的局限性如下：（i）仅可使用N-（对甲氧基苯基）-β-内酰胺，并且（ii）转化与键合于2-氮杂环丁酮C3位的杂原子取代基的相容性较低。环。对于这些问题的高度通用的解决方案取决于在不同溶剂中使用碳酸钠作为异构化试剂。
• C4,C4‘-Bis-β-lactam to Fused Bis-γ-lactam Rearrangement
  作者：Benito Alcaide、Yolanda Martín-Cantalejo、Javier Pérez-Castells、Miguel A. Sierra、Angeles Monge

  DOI：10.1021/jo960826c

  日期：1996.1.1

  Optically pure cis,cis-C4,C4'-bis-beta-lactams 1a-d are obtained in good to excellent yields, in a single step, following two different approaches. Staudinger reaction of (S)-(4-phenyl-2-oxooxazolidinyl)acetyl chloride (2a) and p-anisyldiimine gave the corresponding bis-beta-lactam la as a single enantiomer. The reaction of glyoxal diimine derived from (S)-alpha-phenylethylamine and different alkoxy-substituted acid chlorides gave diastereomeric mixtures of cis,cis-bis-beta-lactams 1b-d, enantiomers at the bicyclic skeleton. The configuration of all compounds has been determined by X-ray diffraction analysis of enantiomerically pure aldehyde 4a and bis-beta-lactam Ib-a. The remaining bicyclic lactams have been chemically correlated to compound 1b-alpha and their configurations assigned. Starting from enantiomerically pure 4-formyl-2-azetidinone 4b, sequential imine formation and ketene cycloaddition allowed the synthesis of differently substituted, optically pure cis,cis-C4,C4'-bis-beta-lactams If-i in good overall yields. C4,C4'-Bis-beta-lactams smoothly rearranged to fused trans,trans-bis-gamma-lactams 7 upon basic treatment (NaOMe/MeOH) in a totally stereoselective process. The presence of alkyl groups attached to the lactam nitrogen inhibits the rearrangement. Differently substituted (aryl and alkyl substituents in either rings) bicyclic p-lactam systems gave the selective opening of the ring with the aromatic substituent attached to the lactam nitrogen. Monocyclic 2-azetidinones 8 with an amino ester side chain at C4 are then obtained. The synthesis of trans,cis-C4,C4'-bis-beta-lactam Ij and trans,trans-C4,C4'-bis-beta-lactam 11 has also been effected in the racemic form. Compound Ij with a trans,cis stereochemistry rearranged to cis,trans-bis-gamma-lactam 7d in the presence of base while the trans,trans-bicycle 11 gave monocyclic 2-azetidinone 8c with an amino ester side chain. Finally, trans,trans-bis-gamma-lactam 11 can be synthesized in a single step from glyoxal diimine 3a employing an excess of lithium isovalerate. A reaction pathway to account for all the observed data is proposed.