4-tert-butyldimethylsilyloxy-1-butyl acrylate | 756480-45-2

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 4-tert-butyldimethylsilyloxy-1-butyl acrylate
• 英文别名: 4-[Tert-butyl(dimethyl)silyl]oxybutyl prop-2-enoate
• CAS: 756480-45-2
• 化学式: C₁₃H₂₆O₃Si
• 分子量: 258.433
• InChiKey: UCSMVUQJGKMYJJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.52
• 重原子数：
  17
• 可旋转键数：
  9
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.77
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  4-tert-butyldimethylsilyloxy-1-butyl acrylate 在 palladium on activated charcoal 氢气 作用下， 以 乙酸乙酯 为溶剂， 反应 24.0h， 以98%的产率得到4-tert-butyldimethylsilyloxybutyl propionate
  参考文献：
  名称：

  Solvent-modulated Pd/C-catalyzed deprotection of silyl ethers and chemoselective hydrogenation

  摘要：

  Recently we have reported undesirable and frequent deprotection of the TBDMS protective group of a variety of hydroxyl functions occurred under neutral and mild hydrogenation conditions using 10% Pd/C in MeOH. The deprotection of silyl ethers is susceptible to significant solvent effect. TBDMS and TES protecting groups were selectively cleaved in the presence of acid-sensitive functional groups such as TIPS ether, TBDPS ether and dimethyl acetal under hydrogenation condition using 10% Pd/C in MeOH. In contrast, chemoselective hydrogenation of reducible functional groups such as acetylene, olefin and benzyl ether, proceeds in the presence of TBDMS or TES ethers in AcOEt or MeCN. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.05.098
• 作为产物：
  描述：

  1H-吲唑,6-溴-4-氯- 、 叔丁基二甲基氯硅烷 在 4-二甲氨基吡啶 、 三乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 24.0h， 以98%的产率得到4-tert-butyldimethylsilyloxy-1-butyl acrylate
  参考文献：
  名称：

  Solvent-modulated Pd/C-catalyzed deprotection of silyl ethers and chemoselective hydrogenation

  摘要：

  Recently we have reported undesirable and frequent deprotection of the TBDMS protective group of a variety of hydroxyl functions occurred under neutral and mild hydrogenation conditions using 10% Pd/C in MeOH. The deprotection of silyl ethers is susceptible to significant solvent effect. TBDMS and TES protecting groups were selectively cleaved in the presence of acid-sensitive functional groups such as TIPS ether, TBDPS ether and dimethyl acetal under hydrogenation condition using 10% Pd/C in MeOH. In contrast, chemoselective hydrogenation of reducible functional groups such as acetylene, olefin and benzyl ether, proceeds in the presence of TBDMS or TES ethers in AcOEt or MeCN. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.05.098

文献信息

• Chemoselective Hydrogenation Catalyzed by Pd on Spherical Carbon
  作者：Hiroyoshi Esaki、Tomohiro Hattori、Aya Tsubone、Satoko Mibayashi、Takao Sakata、Yoshinari Sawama、Yasunari Monguchi、Hidehiro Yasuda、Kazuto Nosaka、Hironao Sajiki

  DOI：10.1002/cctc.201300639

  日期：2013.12

  developed a highly chemoselective hydrogenation method using a novel palladium catalyst supported on spherical carbon (0.5 % Pd/SC). The 0.5 % Pd/SC exhibited a novel catalytic activity and could achieve the chemoselective hydrogenation of alkynes, alkenes, azides, nitro groups, and aliphatic O‐tert‐butyldimethylsilyl (TBS) ethers without hydrogenolysis of benzyl esters, benzyl ethers, nitriles, aromatic

  我们已经开发出了一种新型的高化学选择性氢化方法，该方法使用了一种新型的负载在球形碳（0.5％Pd / SC）上的钯催化剂。的0.5％的Pd / SC显示出新颖的催化活性，并可能实现炔烃，烯烃，叠氮化物，硝基基团的化学选择性氢化，以及脂族ö -叔丁基二甲基（TBS）醚无苄基酯，苄基醚，腈的氢解，芳族酮，N-碳苄氧基（N- Cbz）保护基和芳族O- TBS醚。