8-[(tert-butyldimethylsilyl)oxy]-1,4-dioxaspiro[4,5]decane | 112906-39-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 8-[(tert-butyldimethylsilyl)oxy]-1,4-dioxaspiro[4,5]decane
• 英文别名: Tert-butyl-(1,4-dioxaspiro[4.5]decan-8-yloxy)-dimethylsilane
• CAS: 112906-39-5
• 化学式: C₁₄H₂₈O₃Si
• 分子量: 272.46
• InChiKey: DMUHQMGJBPYQJS-UHFFFAOYSA-N

物化性质

• 沸点：
  304.1±42.0 °C(Predicted)
• 密度：
  0.98±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.69
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  27.7
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  8-[(tert-butyldimethylsilyl)oxy]-1,4-dioxaspiro[4,5]decane 在 iron(III) chloride hexahydrate 、 乙醛 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 以95%的产率得到4-(叔丁基二甲基硅氧)环己酮
  参考文献：
  名称：

  FeCl 3 ·6H 2 O /乙醛，一种通过反缩醛化工艺 对缩酮和缩醛进行脱保护的通用系统

  摘要：

  本文描述了由FeCl 3 ·6H 2 O /乙醛介导的对缩酮/缩醛的轻度和有效催化脱保护。铁（III）/醛系统的多功能性和高化学选择性通过大量实例证明。在硅胶垫上过滤，然后蒸发掉挥发性副产物后，几乎定量分离了脱保护的酮/醛。

  DOI：

  10.1039/c6nj03439j
• 作为产物：
  描述：

  1,4-环己二酮单乙二醇缩酮 在 咪唑 、 sodium tetrahydroborate 、 cerium(III) chloride 作用下， 以 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 7.5h， 生成 8-[(tert-butyldimethylsilyl)oxy]-1,4-dioxaspiro[4,5]decane
  参考文献：
  名称：

  Enantioselective Diels−Alder Cycloadditions with (SS)-2-(p-Tolylsulfinyl)-1,4-naphthoquinone:  Efficient Kinetic Resolution of Chiral Racemic Vinylcyclohexenes

  摘要：

  Chiral racemic vinylcyclohexenes 1a-m, bearing allylic and nonallylic oxygenated substituents on the cyclohexene ring, were submitted to Diels-Alder reactions with enantiomerically pure (SS)(2-p-tolylsulfinyl)-1,4-naphthoquinone. The tandem cycloaddition/pyrolytic sulfoxide elimination led to the formation of enantiomerically enriched angularly tetracyclic quinones (+)-8a and (+)-12, arising from the kinetic resolution of the racemic diene. Dienes la-c, bearing an alkoxy substituent at the allylic position C-3, and 1d-g, with C-3 alkoxy and C-5 methyl groups, gave exclusively quinones (+)-8a-g, resulting from the anti approach to the dienophile. A similar anti selectivity occurred in cycloadditions of dienes 1ij, viith the alkoxy group situated at the allylic position C-6. Nonallylic 4-substituted vinylcyclohexenes 1k-m evolved to ca. 75:25 mixtures of (+)-anti-8k-m and (+)-syn-12k-m derivatives. In all cases, (SS)-(2-p-tolylsulfinyl)-1,4-naphthoquinone reacted from the less hindered face of the more reactive s-cis conformation, giving rise to products in moderate to excellent enantiomeric excesses. Steric effects and torsional interactions in the corresponding approaches account for the observed pi-facial diastereoselectivities at both partners.

  DOI：

  10.1021/jo9811874

文献信息

• MSTFA as an Effective TMS Source for the TMSOTf-Catalzyed Synthesis of Cyclic Acetals
  作者：Suttipol Radomkit、Jada A. H. White、Eugene Chong、Yongda Zhang

  DOI：10.1021/acs.joc.4c00020

  日期：2024.4.19

  lsilyl)acetamide] was identified as a highly effective TMS (trimethylsilyl) source for the convenient preparation of cyclic acetals under modified Noyori’s conditions. The reactions proceeded smoothly under mild conditions, affording a wide range of the corresponding cyclic acetals with excellent yields in the presence of catalytic TMSOTf (trimethylsilyl trifluoromethanesulfonate). The present method

  市售且容易获得的 MSTFA [2,2,2-三氟-N-甲基-N- (三甲基甲硅烷基)乙酰胺]被认为是一种高效的 TMS（三甲基甲硅烷基）来源，可在改进的 Noyori 条件下方便地制备环状缩醛。反应在温和条件下顺利进行，在催化 TMSOTf（三氟甲磺酸三甲基硅酯）存在下以优异的产率生成了各种相应的环状缩醛。本方法不需要大量过量的有价值的二醇，并且不需要预先合成的甲硅烷基化二醇。与其他甲硅烷基化试剂如BSA [ N , O-双(三甲基硅基)乙酰胺]和BSTFA[ N , O-双(三甲基硅基)三氟乙酰胺]相比，MSTFA的应用避免了副产物2对催化缩醛化的抑制， 2,2-三氟-N-甲基乙酰胺。
• Enantioselective Diels−Alder Cycloadditions with (S<i>S</i>)-2-(<i>p-</i>Tolylsulfinyl)-1,4-naphthoquinone:  Efficient Kinetic Resolution of Chiral Racemic Vinylcyclohexenes
  作者：M. Carmen Carreño、Antonio Urbano、Claudio Di Vitta

  DOI：10.1021/jo9811874

  日期：1998.11.1

  Chiral racemic vinylcyclohexenes 1a-m, bearing allylic and nonallylic oxygenated substituents on the cyclohexene ring, were submitted to Diels-Alder reactions with enantiomerically pure (SS)(2-p-tolylsulfinyl)-1,4-naphthoquinone. The tandem cycloaddition/pyrolytic sulfoxide elimination led to the formation of enantiomerically enriched angularly tetracyclic quinones (+)-8a and (+)-12, arising from the kinetic resolution of the racemic diene. Dienes la-c, bearing an alkoxy substituent at the allylic position C-3, and 1d-g, with C-3 alkoxy and C-5 methyl groups, gave exclusively quinones (+)-8a-g, resulting from the anti approach to the dienophile. A similar anti selectivity occurred in cycloadditions of dienes 1ij, viith the alkoxy group situated at the allylic position C-6. Nonallylic 4-substituted vinylcyclohexenes 1k-m evolved to ca. 75:25 mixtures of (+)-anti-8k-m and (+)-syn-12k-m derivatives. In all cases, (SS)-(2-p-tolylsulfinyl)-1,4-naphthoquinone reacted from the less hindered face of the more reactive s-cis conformation, giving rise to products in moderate to excellent enantiomeric excesses. Steric effects and torsional interactions in the corresponding approaches account for the observed pi-facial diastereoselectivities at both partners.
• FeCl₃·6H₂O/acetaldehyde, a versatile system for the deprotection of ketals and acetals via a transacetalization process
  作者：Lucie Schiavo、Loïc Jeanmart、Steve Lanners、Sabine Choppin、Gilles Hanquet

  DOI：10.1039/c6nj03439j

  日期：——

  Mild and efficient catalytic deprotection of ketals/acetals mediated by FeCl3·6H2O/acetaldehyde has been described in this paper. The versatility and high chemoselectivity of the iron(III)/aldehyde system are demonstrated by a large scope of examples. Deprotected ketones/aldehydes are nearly quantitatively isolated after filtration over a pad of silica gel followed by evaporation of volatile by-products

  本文描述了由FeCl 3 ·6H 2 O /乙醛介导的对缩酮/缩醛的轻度和有效催化脱保护。铁（III）/醛系统的多功能性和高化学选择性通过大量实例证明。在硅胶垫上过滤，然后蒸发掉挥发性副产物后，几乎定量分离了脱保护的酮/醛。