(3R,4S)-4-[(S)-2,2-dimethyl-1,3-dioxolan-4-yl]-3-hydroxy-1-(p-methoxyphenyl)-3-(1-methyl-1,2-propadienyl)-2-azetidinone | 276244-09-8

• 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)-4-[(S)-2,2-dimethyl-1,3-dioxolan-4-yl]-3-hydroxy-1-(p-methoxyphenyl)-3-(1-methyl-1,2-propadienyl)-2-azetidinone
• CAS: 276244-09-8
• 化学式: C₁₉H₂₃NO₅
• 分子量: 345.395
• InChiKey: MJOPBWOEPLMERA-JTDSTZFVSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  25
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.47
• 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)-4-[(S)-2,2-dimethyl-1,3-dioxolan-4-yl]-3-hydroxy-1-(p-methoxyphenyl)-3-(1-methyl-1,2-propadienyl)-2-azetidinone 在 palladium diacetate 、 copper diacetate 氧气 、 sodium hydride 、 potassium carbonate 、 lithium bromide 作用下， 以 四氢呋喃 、 乙腈 为溶剂， 反应 24.5h， 生成
  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 、 氯化铵 、 二甲基亚砜 、 三乙胺 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 生成 (3R,4S)-4-[(S)-2,2-dimethyl-1,3-dioxolan-4-yl]-3-hydroxy-1-(p-methoxyphenyl)-3-(1-methyl-1,2-propadienyl)-2-azetidinone
  参考文献：
  名称：

  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

  摘要：

  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.

  DOI：

  10.1021/jo015704l

文献信息

• New Regiocontrolled Synthesis of Functionalized Pyrroles from 2-Azetidinone-Tethered Allenols
  作者：Benito Alcaide、Pedro Almendros、Rocío Carrascosa、María C. Redondo

  DOI：10.1002/chem.200700788

  日期：2008.1.7

  A new one-pot approach to synthesize densely substituted racemic and enantiopure pyrroles from beta-lactams has been developed. The approach relies on the regiocontrolled cyclization of beta-allenamine intermediates derived from the ring opening of 2-azetidinone-tethered allenols. In this approach four points of diversity are introduced, one of which is the position of the allene moiety on the beta-lactam

  已开发出一种新的一锅法，可从β-内酰胺合成密集取代的外消旋和对映纯吡咯。该方法依赖于衍生自2-氮杂环丁酮系链的烯丙醇的开环的β-亚胺胺中间体的区域控制环化。在这种方法中，引入了四个多样性点，其中之一是β-内酰胺环上丙二烯部分的位置。
• Synthesis of Spiroheterocycles by Palladium-Catalyzed Domino Cycloisomerization/Cross-Coupling of α-Allenols and Baylis-Hillman Acetates
  作者：Benito Alcaide、Pedro Almendros、Teresa Martínez del Campo、M. Teresa Quirós

  DOI：10.1002/chem.200900096

  日期：2009.3.23

  First insights into the reaction between a Baylis–Hillman adduct and an allene moiety have been obtained from the novel domino heterocyclization/cross‐coupling reaction of α‐allenols and Baylis–Hillman acetates, which furnishes [(2,5‐dihydrofuran‐3‐yl)methyl]acrylate derivatives in moderate to good yields.

  第一见解成的Baylis-希尔曼加合物和丙二烯基部分之间的反应已经从新颖多米诺heterocyclization /交叉偶联α-allenols和的Baylis-希尔曼乙酸酯的反应，其配料[（2,5-二氢呋喃-3-获得中等）的产率。
• Pd-Cu Bimetallic Catalyzed Domino Cyclization of α-Allenols Followed by a Coupling Reaction: New Sequence Leading to Functionalized Spirolactams
  作者：Benito Alcaide、Pedro Almendros、Raquel Rodríguez-Acebes

  DOI：10.1002/chem.200500228

  日期：2005.9.19

  A novel regioselective metal-catalyzed spirocyclization of alpha-allenols-cross coupling (Heck, Sonogashira, and Suzuki) reaction sequence, leading to potentially bioactive spirocyclic lactam derivatives has been developed. Precursors for the tandem spirocyclization-coupling reaction, alpha-allenols 2 a-d were obtained starting from alpha-oxolactams 1 a-c via indium-mediated Barbier-type carbonyl-allenylation

  已经开发出新颖的区域选择性金属催化的α-烯醇-交叉偶联（Heck，Sonogashira和Suzuki）反应序列的螺环化，从而导致潜在的生物活性螺环内酰胺衍生物。使用我们之前描述的方法，在水性介质中，通过铟介导的Barbier型羰基-烯基化反应，从α-氧代内酰胺1 ac开始，进行串联螺环化偶联反应的前体α-allenols2 ad。
• 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。
• Divergent Reactivity of 2-Azetidinone-Tethered Allenols with Electrophilic Reagents: Controlled Ring Expansion<i>versus</i>Spirocyclization
  作者：Benito Alcaide、Pedro Almendros、Amparo Luna、M. Rosario Torres

  DOI：10.1002/adsc.200900864

  日期：2010.3.8

  A dual reactivity of 2‐azetidinone‐tethered allenols may occur by judicious choice of the electrophilic reagents, namely halogenating versus selenating reagents. Using common substrates, structurally different compounds, namely tetramic acids (from N‐bromosuccinimide) or spirocyclic seleno‐β‐lactams (from N‐phenylselenophthalimide), can be readily synthesized by these divergent protocols.

  明智地选择亲电试剂，即卤化试剂与硒化试剂，可能会发生2-氮杂环丁酮系链的烯丙醇的双重反应。使用常见的底物，可以通过这些不同的方案轻松合成结构上不同的化合物，即四酸（来自N-溴代琥珀酰亚胺）或螺环硒基-β-内酰胺（来自N-苯基硒代邻苯二甲酰亚胺）。