1-<(trimethylsilyl)oxy>-1-methoxy-1,3-pentadiene | 131489-40-2

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: 1-<(trimethylsilyl)oxy>-1-methoxy-1,3-pentadiene
• 英文别名: 1-[(trimethylsilyl)oxy]-1-methoxy-1,3-pentadiene；[(1Z,3E)-1-methoxypenta-1,3-dienoxy]-trimethylsilane
• CAS: 131489-40-2
• 化学式: C₉H₁₈O₂Si
• 分子量: 186.326
• InChiKey: OXYSDXQYQQJGGI-MUIOLIGRSA-N

物化性质

• 沸点：
  188.1±23.0 °C(Predicted)
• 密度：
  0.876±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  12
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-<(trimethylsilyl)oxy>-1-methoxy-1,3-pentadiene 在 zinc(II) chloride 作用下， 以 二氯甲烷 、 乙酸乙酯 为溶剂， 反应 72.0h， 生成 methyl 4-(benzylamino)-2-pentenoate
  参考文献：
  名称：

  Regiochemical control in the preparation of 2-(nosyloxy) .beta.,.gamma.-unsaturated esters and 4-(nosyloxy) .alpha.,.beta.-unsaturated esters from 1-[(trimethylsilyl)oxy]-1-alkoxy 1,3-dienes

  摘要：

  A series of 1-[(trialkylsilyl)oxy]-1-alkoxy 1,3-dienes 1a-i were found to react with p-nitrobenzenesulfonyl peroxide in the presence of sodium methoxide or zinc chloride to give alkyl 2-[[(p-nitrophenyl)sulfonyl]oxy] beta-gamma-unsaturated esters 3 and alkyl 4-[[(p-nitrophenyl)sulfonyl]oxy] alpha,beta-unsaturated esters 4 which are readily separable. The regioselectivity is determined by kinetic versus thermodynamic control. When positions 2 or 4 of the diene are unsubstituted, the 2-isomer is the major product and is the kinetically fastest formed product. It can be thermally rearranged to the more stable 4-isomer. When alkyl substituents are present at either the 2- or 4-positions, only the 4-isomer is obtained. Substitution for nosylate by amine nucleophiles occurs by an S(N)2 process. Thus 2-amino beta,gamma-unsaturated esters and 4-amino alpha,beta-unsaturated esters can be prepared from the appropriate starting nosylate.

  DOI：

  10.1021/jo00003a022
• 作为产物：
  描述：

  三甲基氯硅烷 、 反-2-戊酸甲酯 在 六甲基磷酰三胺 、 lithium diisopropyl amide 作用下， 生成 1-<(trimethylsilyl)oxy>-1-methoxy-1,3-pentadiene
  参考文献：
  名称：

  Regiochemical control in the preparation of 2-(nosyloxy) .beta.,.gamma.-unsaturated esters and 4-(nosyloxy) .alpha.,.beta.-unsaturated esters from 1-[(trimethylsilyl)oxy]-1-alkoxy 1,3-dienes

  摘要：

  A series of 1-[(trialkylsilyl)oxy]-1-alkoxy 1,3-dienes 1a-i were found to react with p-nitrobenzenesulfonyl peroxide in the presence of sodium methoxide or zinc chloride to give alkyl 2-[[(p-nitrophenyl)sulfonyl]oxy] beta-gamma-unsaturated esters 3 and alkyl 4-[[(p-nitrophenyl)sulfonyl]oxy] alpha,beta-unsaturated esters 4 which are readily separable. The regioselectivity is determined by kinetic versus thermodynamic control. When positions 2 or 4 of the diene are unsubstituted, the 2-isomer is the major product and is the kinetically fastest formed product. It can be thermally rearranged to the more stable 4-isomer. When alkyl substituents are present at either the 2- or 4-positions, only the 4-isomer is obtained. Substitution for nosylate by amine nucleophiles occurs by an S(N)2 process. Thus 2-amino beta,gamma-unsaturated esters and 4-amino alpha,beta-unsaturated esters can be prepared from the appropriate starting nosylate.

  DOI：

  10.1021/jo00003a022

文献信息

• Intertwined Analytical, Experimental and Theoretical Studies on the Formation and Structure of a Copper Dienolate
  作者：Baptiste Lecachey、Laetitia Palais、Benoît Courcy、Samira Bouauli、Muriel Durandetti、Hassan Oulyadi、Anne Harisson‐Marchand、Jacques Maddaluno、Hélène Gérard、Emmanuel Vrancken、Jean‐Marc Campagne

  DOI：10.1002/chem.202100596

  日期：2021.5.20

  a Cu(II) salt and TBAT yielding the corresponding copper dienolate is addressed. A combined NMR and cyclic voltammetry analysis first highlight the role of TBAT in the Cu(II) to Cu(I) reduction and the structure of the precatalytic species. From these first results a second set of NMR and theoretical studies enable the determination of the structure and the mechanism of formation of the copper dienolate

  讨论了甲硅烷基二烯酸酯，Cu（II）盐和TBAT的反应产生相应的二烯丙基铜的反应。NMR和循环伏安分析相结合，首先突出了TBAT在Cu（II）还原为Cu（I）和预催化物质结构中的作用。从这些第一结果中，第二组NMR和理论研究使得能够确定二烯酸铜铜催化物质的结构和形成机理。最后，我们表明，铜催化剂通过二烯醇铜中间体促进了甲硅烷基二烯醇盐前体的E / Z s-顺式/ s-反式平衡。所有这些结果揭示了催化的和不对称的乙烯基Mukaiyama反应的某些特性。
• Enolisation of αβ-unsaturated esters : regio- and geometrical control
  作者：Donald W. Cameron、Mark G. Looney、Judy A. Pattermann

  DOI：10.1016/0040-4039(95)01531-0

  日期：1995.10

  LDA-Mediated γ-deprotonation of simple αβ-unsaturated esters occurs (Z)- to the ester group; silylation then leads to oxy butadienes with strong regio- and geometrical selectivity.

  LDA介导的简单αβ-不饱和酯的γ去质子化反应发生在酯基上（Z）-；然后，甲硅烷基化会产生具有强烈的区域和几何选择性的氧丁二烯。
• γ-Oxygenation of α,β-Unsaturated Esters by Vinylogous <i>O</i>-Nitroso Mukaiyama Aldol Reaction
  作者：Guo-Qiang Tian、Jiong Yang、Kellymar Rosa-Perez

  DOI：10.1021/ol1021433

  日期：2010.11.5

  A practical procedure has been developed for gamma-oxygenation of alpha,beta-unsaturated esters by a vinylogous O-nitroso Mukaiyama aldol reaction followed by a one-pot N-O bond heterolysis of the in situ generated gamma-aminoxy-alpha,beta-unsaturated esters.
• Regiochemical control in the preparation of 2-(nosyloxy) .beta.,.gamma.-unsaturated esters and 4-(nosyloxy) .alpha.,.beta.-unsaturated esters from 1-[(trimethylsilyl)oxy]-1-alkoxy 1,3-dienes
  作者：Robert V. Hoffman、Hwa Ok Kim

  DOI：10.1021/jo00003a022

  日期：1991.2

  A series of 1-[(trialkylsilyl)oxy]-1-alkoxy 1,3-dienes 1a-i were found to react with p-nitrobenzenesulfonyl peroxide in the presence of sodium methoxide or zinc chloride to give alkyl 2-[[(p-nitrophenyl)sulfonyl]oxy] beta-gamma-unsaturated esters 3 and alkyl 4-[[(p-nitrophenyl)sulfonyl]oxy] alpha,beta-unsaturated esters 4 which are readily separable. The regioselectivity is determined by kinetic versus thermodynamic control. When positions 2 or 4 of the diene are unsubstituted, the 2-isomer is the major product and is the kinetically fastest formed product. It can be thermally rearranged to the more stable 4-isomer. When alkyl substituents are present at either the 2- or 4-positions, only the 4-isomer is obtained. Substitution for nosylate by amine nucleophiles occurs by an S(N)2 process. Thus 2-amino beta,gamma-unsaturated esters and 4-amino alpha,beta-unsaturated esters can be prepared from the appropriate starting nosylate.