(S)-4-isopropyl-5,5-dimethyl-3-propionyloxazolidin-2-one

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑烷类
• 英文名称: (S)-4-isopropyl-5,5-dimethyl-3-propionyloxazolidin-2-one
• 英文别名: (4S)-5,5-dimethyl-3-propanoyl-4-propan-2-yl-1,3-oxazolidin-2-one
• 化学式: C₁₁H₁₉NO₃
• 分子量: 213.277
• InChiKey: GNLZVBMGQMWEPA-VIFPVBQESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.82
• 拓扑面积：
  46.6
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (S)-4-isopropyl-5,5-dimethyl-3-propionyloxazolidin-2-one 在 四氯化钛 、 三乙胺 、 N-氟代双苯磺酰胺 作用下， 以 二氯甲烷 为溶剂， 反应 1.58h， 以91%的产率得到
  参考文献：
  名称：

  Stereoselective α-Fluorination of N-Acyloxazolidinones at Room Temperature within 1 h

  摘要：

  A direct alpha-fluorination of N-acyloxazolidinones based on the unique reactivity of group IVa metal enolates has been developed. The reaction is an experimentally simple, low-cost, quick, and energy-efficient alternative for asymmetric alpha-fluorination of N-acyloicazolidinones. Preliminary studies have shown compatibility with alkyl, alkenyl, and alkynyl, aromatic, and several heteroaromatic substituents. High diastereoselectivities have been achieved with most substrates tested, and the reaction is typically complete within 1 h at ambient temperature.

  DOI：

  10.1021/jo500957d
• 作为产物：
  描述：

  N-(叔丁氧基羰基)-L-缬氨酸甲酯 在 正丁基锂 、 potassium tert-butylate 作用下， 以 四氢呋喃 、 乙醚 、 正己烷 为溶剂， 反应 0.5h， 生成 (S)-4-isopropyl-5,5-dimethyl-3-propionyloxazolidin-2-one
  参考文献：
  名称：

  海洋Roseobacter组的三种DMSP裂解酶的化学分化

  摘要：

  海洋细菌二甲基磺化丙酸酯（DMSP）分解代谢在海洋和全球生态中起着重要作用。卢氏菌群模型动物Ruegeria pomeroyi DSS-3的基因组中含有不少于三个不同DMSP裂解酶（DddW，DddP和DddQ）的基因，这些酶催化DMSP降解为二甲基硫醚（DMS）和丙烯酸酯。尽管它们具有明显的相似功能，但这些酶没有显示出明显的整体序列同一性。在这项工作中，来自R. pomeroyi的DddQ和DddW和来自Phieobacter inhibens的DddP同源物对DSM 17395进行了功能表征，并使用几种合成的DMSP类似物测试了其底物范围。对比动力学分析揭示了DMSP及其类似物在选择性和总速度方面的转化差异，从而使人们对DMSP裂解酶的分子机制及其推测的生物学功能有了更多的了解。

  DOI：

  10.1039/c7ob00913e

文献信息

• A Difluoromethylene Linchpin/Synthon: Application in Conjunction with Anion Relay Chemistry (ARC) Permits Ready Access to Diverse Difluoromethylene Scaffolds
  作者：Kevin T. O’Brien、Jonathan W. Nadraws、Amos B. Smith

  DOI：10.1021/acs.orglett.0c03508

  日期：2021.3.5

  difluoromethylene scaffolds. Initiated via [1,2]-addition of an organolithium reagent to a β-difluoromethylene silyl aldehyde, an alkoxide intermediate is formed, which is capable of undergoing a [1,4]-Brook rearrangement to generate a stabilized α-difluoromethylene carbanion, which, upon electrophile capture, affords a three-component adduct. This three component synthetic tactic represents a novel one-pot

  有机二氟合成子与三组分非对映选择性阴离子中继化学 (ARC) 相结合，可以方便地使用各种二氟亚甲基支架。通过将有机锂试剂与 β-二氟亚甲基甲硅烷基醛 [1,2]-加成引发，形成醇盐中间体，该中间体能够进行 [1,4]-Brook 重排以产生稳定的 α-二氟亚甲基碳负离子，它在亲电捕获后提供三组分加合物。这种三组分合成策略代表了一种新的一锅发散策略，用于构建不同的有机二氟化合物。
• Asymmetric Radical Addition of TEMPO to Titanium Enolates
  作者：Phillip J. Mabe、Armen Zakarian

  DOI：10.1021/ol403398u

  日期：2014.1.17

  A mild method for α-hydroxylation of N-acyl oxazolidinones by asymmetric radical addition of the 2,2,6,6-tetramethylpiperidine N-oxy (TEMPO) radical to titanium enolates was developed. The high diastereoselectivity and broad scope of the reaction show synthetic utility for the α-hydroxylation of substrates that are not tolerant to strongly basic conditions.

  提出了一种温和的方法，该方法通过将2,2,6,6-四甲基哌啶N-氧基（TEMPO）基团不对称地自由基加成到烯醇钛上，来进行N-酰基恶唑烷酮的α-羟基化。高非对映选择性和广泛的反应范围显示了对不耐受强碱性条件的底物的α-羟基化反应的合成效用。
• Stereocontrolled Synthesis of the Highly Functionalized Core Structure of Aurisides by Ring-Closing Metathesis
  作者：Emmanuel Bourcet、Fabienne Fache、Olivier Piva

  DOI：10.1002/ejoc.201000331

  日期：2010.7

  Two approaches based on the ring-closing metathesis reaction have been explored for the synthesis of the core structure of the marine natural products, the aurisides. The second approach, accomplished in a stereocontrolled manner, used both a Brown's allylation and an Evans' aldolisation, and finally a transannular ketalization to deliver a highly functionalized auriside analogue.

  已经探索了两种基于闭环复分解反应的方法来合成海洋天然产物金苷的核心结构。第二种方法以立体控制的方式完成，使用布朗烯丙基化和埃文斯醛醇化，最后使用跨环缩酮化来提供高度功能化的金苷类似物。
• 4-Substituted-5,5-dimethyl oxazolidin-2-ones as effective chiral auxiliaries for enolate alkylations and Michael additions
  作者：Stephen G. Davies、Hitesh J. Sanganee

  DOI：10.1016/0957-4166(95)00057-v

  日期：1995.3

  4-(Methyl, phenyl, benzyl, and i-propyl)-5,5-dimethyl-oxazolidin-2-ones, readily available from α-amino acids, are shown to be effective chiral auxiliaries for stereoselective enolate alkylations and conjugate additions of attached N-acyl moieties.

  4-（甲基，苯基，苄基，和我-丙基）-5,5-二甲基-恶唑烷-2-酮，可容易地从α氨基酸，被证明是有效的立体选择性为烯醇化物烷基化和的共轭加成的手性助剂连接的N-酰基部分。
• Stereoselective α-Fluorination of <i>N</i>-Acyloxazolidinones at Room Temperature within 1 h
  作者：Joseph Alvarado、Aaron T. Herrmann、Armen Zakarian

  DOI：10.1021/jo500957d

  日期：2014.7.3

  A direct alpha-fluorination of N-acyloxazolidinones based on the unique reactivity of group IVa metal enolates has been developed. The reaction is an experimentally simple, low-cost, quick, and energy-efficient alternative for asymmetric alpha-fluorination of N-acyloicazolidinones. Preliminary studies have shown compatibility with alkyl, alkenyl, and alkynyl, aromatic, and several heteroaromatic substituents. High diastereoselectivities have been achieved with most substrates tested, and the reaction is typically complete within 1 h at ambient temperature.