(E)-N,3-diphenyl-2-(trimethylsilyl)acrylamide | 153035-32-6

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂酸及其衍生物
• 英文名称: (E)-N,3-diphenyl-2-(trimethylsilyl)acrylamide
• 英文别名: (E)-N,3-diphenyl-2-trimethylsilylprop-2-enamide
• CAS: 153035-32-6
• 化学式: C₁₈H₂₁NOSi
• 分子量: 295.456
• InChiKey: HKSQLLVZYRQAHL-SAPNQHFASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.59
• 重原子数：
  21
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  29.1
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  (E)-N,3-diphenyl-2-(trimethylsilyl)acrylamide 在 sodium hydroxide 作用下， 以 四氢呋喃 、 甲醇 、 乙醚 为溶剂， 反应 4.42h， 生成 β-Butyl-hydrozimtsaeure-anilid
  参考文献：
  名称：

  Charge-directed conjugate addition reactions of silylated .alpha.,.beta.-unsaturated amidate anions

  摘要：

  A variety of N-substituted alpha-silylated-alpha,beta-unsaturated amidate anions (2) have been found to be excellent Michael acceptors in charge-directed conjugate addition reactions with Grignard and organolithium reagents. The effects of olefin substitution, Si-substitution, N-substitution, and amidate counterion have been studied. Anionic acceptors may be prepared in situ by the addition of silylated vinyllithium reagents to isocyanates and then allowed to undergo conjugate addition reactions with subsequently added nucleophiles, but it was found to be more efficient to isolate neutral acceptors and regenerate the acceptor anion through the use of excess nucleophile. Beta-Substituted acceptors were found to react only with reactive organolithium reagents while a beta,beta-disubstituted acceptor failed to undergo conjugate addition reactions. A primary amide acceptor (14d) also undergoes addition reactions with larger quantitites of nucleophiles suggesting that dianionic amidate acceptors (31) are involved. Diene acceptor 24 was found to undergo a 1,6-addition reaction with n-BuLi. Sodium and potassium amidate salts were found to be inferior to lithium and magnesium salts in addition reactions in keeping with the expectation that an increase in carbonyl-group charge burden retards conjugate reactions. Triphenylsilyl-containing acceptor 16 was found to be more reactive in reactions with n-BuMgCl but less reactive with bulkier tert-BuMgCl. Adduct dianions can be monoalkylated with alkyl iodides and used in Peterson olefination reactions.

  DOI：

  10.1021/jo00078a028
• 作为产物：
  描述：

  1,4-diphenyl-3-(trimethylsilyl)azetidin-2-one 以93%的产率得到
  参考文献：
  名称：

  GURTLER, SUSANNE;OTTO, HANS-HARTWIG, ARCH. PHARM., 322,(1989) N, C. 105-109

  摘要：

  DOI：

文献信息

• Stereoselective Formal Hydroamidation of Si-Substituted Arylacetylenes with DIBAL-H and Isocyanates: Synthesis of (<i>E</i>)- and (<i>Z</i>)-α-Silyl-α,β-unsaturated Amides
  作者：Hanseul Lee、Soohong Cho、Yunmi Lee、Byunghyuck Jung

  DOI：10.1021/acs.joc.0c01903

  日期：2020.10.2

  stereoselective method for the synthesis of (E)- and (Z)-α-silyl-α,β-unsaturated amides and its synthetic applications are presented herein. The solvent-controlled hydroaluminations of Si-substituted alkynes with DIBAL-H generate diastereomerically enriched alkenylaluminum reagents that are directly reacted with isocyanates at ambient temperature to afford α-silyl-α,β-unsaturated amides in high yields with retained

  本文提出了一种合成（E）-和（Z）-α-甲硅烷基-α，β-不饱和酰胺的有效且立体选择性的方法及其合成应用。用DIBAL-H进行的溶剂控制的Si取代炔烃的水铝化反应可生成富含非对映异构体的烯基铝试剂，这些试剂可在环境温度下与异氰酸酯直接反应，以高产率得到α-甲硅烷基-α，β-不饱和酰胺，并保留了立体选择性。尤其是，此过程可以合成多种（E）-α-甲硅烷基-α，β-不饱和酰胺，是研究较少的异构体。该方法的合成实用性因其反应时间短，易于纯化，容易获得的底物和试剂，克级合成以及C–Si键进一步转化为C–H，C–X和C–的特点而突出。 C键。
• GURTLER, SUSANNE;OTTO, HANS-HARTWIG, ARCH. PHARM., 322,(1989) N, C. 105-109
  作者：GURTLER, SUSANNE、OTTO, HANS-HARTWIG

  DOI：——

  日期：——
• Charge-directed conjugate addition reactions of silylated .alpha.,.beta.-unsaturated amidate anions
  作者：Manning P. Cooke、Charles M. Pollock

  DOI：10.1021/jo00078a028

  日期：1993.12

  A variety of N-substituted alpha-silylated-alpha,beta-unsaturated amidate anions (2) have been found to be excellent Michael acceptors in charge-directed conjugate addition reactions with Grignard and organolithium reagents. The effects of olefin substitution, Si-substitution, N-substitution, and amidate counterion have been studied. Anionic acceptors may be prepared in situ by the addition of silylated vinyllithium reagents to isocyanates and then allowed to undergo conjugate addition reactions with subsequently added nucleophiles, but it was found to be more efficient to isolate neutral acceptors and regenerate the acceptor anion through the use of excess nucleophile. Beta-Substituted acceptors were found to react only with reactive organolithium reagents while a beta,beta-disubstituted acceptor failed to undergo conjugate addition reactions. A primary amide acceptor (14d) also undergoes addition reactions with larger quantitites of nucleophiles suggesting that dianionic amidate acceptors (31) are involved. Diene acceptor 24 was found to undergo a 1,6-addition reaction with n-BuLi. Sodium and potassium amidate salts were found to be inferior to lithium and magnesium salts in addition reactions in keeping with the expectation that an increase in carbonyl-group charge burden retards conjugate reactions. Triphenylsilyl-containing acceptor 16 was found to be more reactive in reactions with n-BuMgCl but less reactive with bulkier tert-BuMgCl. Adduct dianions can be monoalkylated with alkyl iodides and used in Peterson olefination reactions.