(-)-(Z,SS,2R,3R)-5-[N-methyl-S-phenylsulfonimidoyl]-3-isopropyl-2-triethylsilanoxypent-4-enoic acid ethyl ester | 898237-55-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (-)-(Z,SS,2R,3R)-5-[N-methyl-S-phenylsulfonimidoyl]-3-isopropyl-2-triethylsilanoxypent-4-enoic acid ethyl ester
• 英文别名: (-)-(Z,S_S,2R,3R)-5-[N-methyl-S-phenylsulfonimidoyl]-3-isopropyl-2-triethylsilanoxypent-4-enoic acid ethyl ester
• CAS: 898237-55-3
• 化学式: C₂₃H₃₉NO₄SSi
• 分子量: 453.718
• InChiKey: PIAGJWWJSOIPSF-BDBIXOOZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.88
• 重原子数：
  30.0
• 可旋转键数：
  12.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.61
• 拓扑面积：
  64.96
• 氢给体数：
  0.0
• 氢受体数：
  5.0

反应信息

• 作为反应物：
  描述：

  (-)-(Z,SS,2R,3R)-5-[N-methyl-S-phenylsulfonimidoyl]-3-isopropyl-2-triethylsilanoxypent-4-enoic acid ethyl ester 在 trimethoxonium tetrafluoroborate 、 lithium tert-butylamide 作用下， 以 二氯甲烷 、 四氢呋喃 为溶剂， 反应 19.0h， 以30%的产率得到(+)-(R_S,1R,2R,8bS)-4-dimethylamino-1-isopropyl-4-oxo-2-triethylsilanyloxy-1,8b-dihydro-2H-4λ⁶-benzo[b]cyclopenta[d]thiophen-3-one
  参考文献：
  名称：

  Functionalized Chiral Vinyl Aminosulfoxonium Salts:  Asymmetric Synthesis and Application to the Synthesis of Enantiopure Unsaturated Prolines, β,γ-Dehydro Amino Acids, and Cyclopentanoid Keto Aminosulfoxonium Ylides

  摘要：

  Methylation of the enantiopure functionalized vinyl sulfoximines 5a-e and 14a-d followed by a F-ion or DBU-mediated isomerization of the vinyl aminosulfoxonium salts 7a-e and 15a-d, respectively, gave the allyl aminosulfoxonium salts 10a-e and 17a-d, respectively. A concomitant intramolecular substitution of the aminosulfoxonium group of 10a-e and 17a-d by the amino group afforded the unsaturated prolines 8a-e and 18a-d, respectively. The starting vinyl sulfoximines are accessible through a highly selective and stereo-complementary aminoalkylation of the corresponding sulfonimidoyl-substituted mono- and bis( allyl) titanium complexes with the imino ester 4. The vinyl aminosulfoxonium salts 34, 7a-d, and E-15c experienced upon treatment with the Cl- ion a migratory substitution with formation of the delta-chloro-beta,gamma-dehydro amino acids 36, E/Z-37a-d, and 38, respectively. A migratory substitution of the hydroxy-substituted vinyl aminosulfoxonium salts 46a and 46b furnished the delta-chloro allyl alcohols E/Z-48a and E-48b, respectively. A facile one-pot conversion of the vinyl sulfoximines 31b, 5c and 45a to the allyl chlorides 36, E/Z-37c and E/Z-48a, respectively, was achieved upon treatment with a chloroformiate. A tandem cyclization of the vinyl aminosulfoxonium salts 7b, Al-7b and 57 with LiN( H) tBu yielded the cyclopentanoid keto aminosulfoxonium ylides 54, Al-54, 59, 60 and 61, respectively. The structure of the tricyclic keto aminosulfoxonium ylide Al-54 has been determined by X-ray crystal structure analysis. Ab initio calculations and a NBO analysis of the tricyclic keto aminosulfoxonium ylide XXIII show a polar structure stabilized by electrostatic interactions between the ylidic C atom and both the carbonyl C atom and the S atom.

  DOI：

  10.1021/ja061152i
• 作为产物：
  描述：

  N,S-dimethyl-S-phenylsulfoximine 在 咪唑 、 正丁基锂 、 1,2-diazabicyclo[5.4.0]undec-7-ene 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 四氢呋喃 、 正己烷 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 9.0h， 生成 (-)-(Z,SS,2R,3R)-5-[N-methyl-S-phenylsulfonimidoyl]-3-isopropyl-2-triethylsilanoxypent-4-enoic acid ethyl ester
  参考文献：
  名称：

  Functionalized Chiral Vinyl Aminosulfoxonium Salts:  Asymmetric Synthesis and Application to the Synthesis of Enantiopure Unsaturated Prolines, β,γ-Dehydro Amino Acids, and Cyclopentanoid Keto Aminosulfoxonium Ylides

  摘要：

  Methylation of the enantiopure functionalized vinyl sulfoximines 5a-e and 14a-d followed by a F-ion or DBU-mediated isomerization of the vinyl aminosulfoxonium salts 7a-e and 15a-d, respectively, gave the allyl aminosulfoxonium salts 10a-e and 17a-d, respectively. A concomitant intramolecular substitution of the aminosulfoxonium group of 10a-e and 17a-d by the amino group afforded the unsaturated prolines 8a-e and 18a-d, respectively. The starting vinyl sulfoximines are accessible through a highly selective and stereo-complementary aminoalkylation of the corresponding sulfonimidoyl-substituted mono- and bis( allyl) titanium complexes with the imino ester 4. The vinyl aminosulfoxonium salts 34, 7a-d, and E-15c experienced upon treatment with the Cl- ion a migratory substitution with formation of the delta-chloro-beta,gamma-dehydro amino acids 36, E/Z-37a-d, and 38, respectively. A migratory substitution of the hydroxy-substituted vinyl aminosulfoxonium salts 46a and 46b furnished the delta-chloro allyl alcohols E/Z-48a and E-48b, respectively. A facile one-pot conversion of the vinyl sulfoximines 31b, 5c and 45a to the allyl chlorides 36, E/Z-37c and E/Z-48a, respectively, was achieved upon treatment with a chloroformiate. A tandem cyclization of the vinyl aminosulfoxonium salts 7b, Al-7b and 57 with LiN( H) tBu yielded the cyclopentanoid keto aminosulfoxonium ylides 54, Al-54, 59, 60 and 61, respectively. The structure of the tricyclic keto aminosulfoxonium ylide Al-54 has been determined by X-ray crystal structure analysis. Ab initio calculations and a NBO analysis of the tricyclic keto aminosulfoxonium ylide XXIII show a polar structure stabilized by electrostatic interactions between the ylidic C atom and both the carbonyl C atom and the S atom.

  DOI：

  10.1021/ja061152i