(3R,4S)-3-(1,3-butadien-2-yl)-4-[(S)-2,2-dimethyl-1,3-dioxolan-4-yl]-3-hydroxy-1-(p-methoxyphenyl)-2-azetidinone | 412272-08-3

• 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: (3R,4S)-3-(1,3-butadien-2-yl)-4-[(S)-2,2-dimethyl-1,3-dioxolan-4-yl]-3-hydroxy-1-(p-methoxyphenyl)-2-azetidinone
• 英文别名: (3R,4S)-3-buta-1,3-dien-2-yl-4-[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]-3-hydroxy-1-(4-methoxyphenyl)azetidin-2-one
• CAS: 412272-08-3
• 化学式: C₁₉H₂₃NO₅
• 分子量: 345.395
• InChiKey: CLHRPNBYOIKANZ-JTDSTZFVSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  25
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  68.2
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  (3R,4S)-3-(1,3-butadien-2-yl)-4-[(S)-2,2-dimethyl-1,3-dioxolan-4-yl]-3-hydroxy-1-(p-methoxyphenyl)-2-azetidinone 在 Grubbs catalyst first generation sodium hydroxide 、 四丁基碘化铵 作用下， 以 二氯甲烷 、 甲苯 为溶剂， 反应 32.0h， 生成 (1S,4R)-1-[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]-2-(4-methoxyphenyl)-9-methylidene-5-oxa-2-azaspiro[3.5]non-7-en-3-one
  参考文献：
  名称：

  通过Barbier型反应，然后通过金属催化的环化反应，从α-氧代-β-内酰胺以多样性为导向的对映纯螺环2-氮杂环丁酮类化合物的制备

  摘要：

  通过使用不同的金属介导的羰基加成/环化反应序列，已经开发出新颖，简单和方便的策略来实现多种功能化的螺环β-内酰胺。螺环化前体，2-氮杂环丁酮拴系的均烯丙基醇，溴代均烯丙基醇，均丙炔醇，（buta-1,3-dien-2-yl）甲醇和α-烯醇是通过将稳定的有机金属试剂区域选择性地添加到氮杂环丁烷2中而获得的，3-二酮在水性环境中。上述单环不饱和醇衍生物的钌，银和钯催化的反应提供了oxaspiro-β-内酰胺。

  DOI：

  10.1002/adsc.200600502
• 作为产物：
  描述：

  (3R,4R)-4-[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]-3-hydroxy-1-(4-methoxyphenyl)azetidin-2-one 在 indium 、 草酰氯 、 ammonium chloride 、 二甲基亚砜 、 sodium iodide 作用下， 以 四氢呋喃 、 二氯甲烷 、 水 为溶剂， 反应 2.0h， 生成 (3R,4S)-3-(1,3-butadien-2-yl)-4-[(S)-2,2-dimethyl-1,3-dioxolan-4-yl]-3-hydroxy-1-(p-methoxyphenyl)-2-azetidinone
  参考文献：
  名称：

  Metal-Mediated Carbonyl-1,3-butadien-2-ylation by 1,4-Bis(methanesulfonyl)-2-butyne or 1,4-Dibromo-2-butyne in Aqueous Media:  Asymmetric Synthesis of 3-Substituted 3-Hydroxy-β-lactams

  摘要：

  Metal-mediated 1,3-butadien-2-ylation reactions between 1,4-dibromo-2-butyne or 1,4-bis(methanesulfonyl)-2-butyne and optically pure azetidine-2,3-diones were investigated in aqueous media, offering a convenient asymmetric entry to the potentially bioactive 3-substituted 3-hydroxy-beta-lactam moiety. The diastereoselectivity of the addition reaction was controlled by the bulky chiral auxiliary at C4. However, while the regioselectivity of the process was full, the chemical yield of the addition was a function of the nature of both the metal reagent and the system solvent as well. In addition, 2-azetidinone-tethered 1,3-butadienes can easily be transformed into other functionalities via Diels-Alder reaction.

  DOI：

  10.1021/jo016247b

文献信息

• New Aspects of the Indium Chemistryof Carbonyl-β-lactams
  作者：Benito Alcaide、Pedro Almendros、Cristina Aragoncillo、Raquel Rodríguez-Acebes

  DOI：10.1055/s-2003-39388

  日期：——

  Reactions of racemic as well as optically pure carbonyl-β-lactams with stabilized organo-indium reagents were investigated in aqueous media. The regio- and stereochemistry of the processes were generally good, offering a convenient asymmetric entry to densely functionalized hydroxy-β-lactams.

  研究了外消旋和光学纯羰基-δ-内酰胺与稳定的有机铟试剂在水介质中的反应。反应过程的区域和立体化学性质普遍良好，为获得官能化程度较高的羟基δ-内酰胺提供了便捷的不对称途径。
• Metal-assisted synthesis of enantiopure spirocyclic β-lactams from azetidine-2,3-diones
  作者：Benito Alcaide、Pedro Almendros、Teresa Martı́nez-del Campo、Raquel Rodrı́guez-Acebes

  DOI：10.1016/j.tetlet.2004.06.130

  日期：2004.8

  A novel approach to enantiopure spirocyclic beta-lactams has been developed by using different intramolecular metal-catalyzed cyclization reactions in monocyclic unsaturated alcohols. The access to cyclization precursors, 2-azetidinone-tethered homoallylic alcohols, (buta-1,3-dien2-yl)methanols, and alpha-allenols was achieved by regio and stereoselective addition of stabilized organo-indium reagents to azetidine-2,3-diones in aqueous environment. (C) 2004 Elsevier Ltd. All rights reserved.