2-phenylthiotrimethylsilylmethyl-3,4-trans-tetramethylene-γ-butyrolactone | 119704-09-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并呋喃
• 英文名称: 2-phenylthiotrimethylsilylmethyl-3,4-trans-tetramethylene-γ-butyrolactone
• 英文别名: (3aS,7aR)-3-[phenylsulfanyl(trimethylsilyl)methyl]-3a,4,5,6,7,7a-hexahydro-3H-1-benzofuran-2-one
• CAS: 119704-09-5
• 化学式: C₁₈H₂₆O₂SSi
• 分子量: 334.555
• InChiKey: FWPAZCZRBVFEOP-RSIVFMTNSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.76
• 重原子数：
  22
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.61
• 拓扑面积：
  51.6
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-phenylthiotrimethylsilylmethyl-3,4-trans-tetramethylene-γ-butyrolactone 在 四丁基氟化铵 、 丙烯酸甲酯（MA） 作用下， 以 四氢呋喃 为溶剂， 反应 0.17h， 以83%的产率得到trans-3-methylenehexahydrobenzofuran-2-one
  参考文献：
  名称：

  Synthesis of .gamma.- and .delta.-lactones by free-radical annelation of Se-phenyl selenocarbonates

  摘要：

  A general method for the synthesis of gamma- and delta-lactones through the intramolecular addition of alkoxycarbonyl radicals, formed by reaction of Se-phenylselenocarbonates with n-Bu3SnH, onto carbon-carbon multiple bonds is described. This free-radical cyclization is characterized by high regioselectivity favoring exo addition and by a high ratio of cyclization to reduction. Monocyclic, fused bicyclic, and spirocyclic lactones are formed in good to excellent yield. Use of allyltri-n-butyltin as a chain-transfer agent in the place of n-Bu3SnH affords the corresponding 3-butenyl lactones.

  DOI：

  10.1021/jo00043a030
• 作为产物：
  描述：

  trans-2-((trimethylsilyl)ethynyl)cyclohexanol 在 吡啶 、 偶氮二异丁腈 、 三正丁基氢锡 、 三乙胺 作用下， 以 乙醇 、 苯 为溶剂， 反应 17.0h， 生成 2-phenylthiotrimethylsilylmethyl-3,4-trans-tetramethylene-γ-butyrolactone
  参考文献：
  名称：

  Synthesis of .gamma.- and .delta.-lactones by free-radical annelation of Se-phenyl selenocarbonates

  摘要：

  A general method for the synthesis of gamma- and delta-lactones through the intramolecular addition of alkoxycarbonyl radicals, formed by reaction of Se-phenylselenocarbonates with n-Bu3SnH, onto carbon-carbon multiple bonds is described. This free-radical cyclization is characterized by high regioselectivity favoring exo addition and by a high ratio of cyclization to reduction. Monocyclic, fused bicyclic, and spirocyclic lactones are formed in good to excellent yield. Use of allyltri-n-butyltin as a chain-transfer agent in the place of n-Bu3SnH affords the corresponding 3-butenyl lactones.

  DOI：

  10.1021/jo00043a030

文献信息

• α-alkylation and α-alkylidenation of carbonyl compounds by o-silylated enolate phenylthioalkylation
  作者：Ian Paterson

  DOI：10.1016/s0040-4020(01)86667-9

  日期：1988.1

  For many reactions next to a carbonyl group, the use of O-silylated enolate chemistry offers improvements in yield and selectivity over the corresponding reactions of Group I metal enolates. In the case of α-alkylation of carbonyl compounds, Lewis-acid (TiCL4 or ZnBr2) promoted phenylthioalkylation of O-silylated enolates 3 by α-chlorosulphides 4 (R3=H, Me, Prn, Pri, But, and Me3Si), followed by reductive

  对于羰基旁边的许多反应，使用O-甲硅烷基化的烯醇盐化学方法比第I组金属烯醇盐的相应反应提供了更高的产率和选择性。在羰基化合物，路易斯酸（的TiCl 4的α-烷基化的情况下，4或ZnBr 2）促进了phenylthioalkylation ö -silylated烯醇化物3由α-chlorosulphides 4（R 3 = H，Me中，镨Ñ，镨我，卜吨，和Me 3 Si），然后通过阮内镍从5→6进行还原性硫去除，被认为是此合成上重要的CC键形成步骤的可靠方法。一种替代硫消除途径经由5→7的亚砜可使羰基化合物进行区域和立体控制的α-亚烷基化。苯硫基烷基化反应适用于酮，醛，酯和内酯。
• Synthesis of .gamma.- and .delta.-lactones by free-radical annelation of Se-phenyl selenocarbonates
  作者：Mario D. Bachi、Eric Bosch

  DOI：10.1021/jo00043a030

  日期：1992.8

  A general method for the synthesis of gamma- and delta-lactones through the intramolecular addition of alkoxycarbonyl radicals, formed by reaction of Se-phenylselenocarbonates with n-Bu3SnH, onto carbon-carbon multiple bonds is described. This free-radical cyclization is characterized by high regioselectivity favoring exo addition and by a high ratio of cyclization to reduction. Monocyclic, fused bicyclic, and spirocyclic lactones are formed in good to excellent yield. Use of allyltri-n-butyltin as a chain-transfer agent in the place of n-Bu3SnH affords the corresponding 3-butenyl lactones.