Diisopropyl (2S,3S)-2-bromo-3-(tert-butylmethylsiloxy)succinate | 157161-99-4

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: Diisopropyl (2S,3S)-2-bromo-3-(tert-butylmethylsiloxy)succinate
• 英文别名: dipropan-2-yl (2S,3S)-2-bromo-3-[tert-butyl(dimethyl)silyl]oxybutanedioate
• CAS: 157161-99-4
• 化学式: C₁₆H₃₁BrO₅Si
• 分子量: 411.409
• InChiKey: HOKQKWWUKFYBFX-QWHCGFSZSA-N

物化性质

• 沸点：
  366.3±42.0 °C(predicted)
• 密度：
  1.154±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.04
• 重原子数：
  23
• 可旋转键数：
  10
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  61.8
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  烯丙基三丁基锡 、 Diisopropyl (2S,3S)-2-bromo-3-(tert-butylmethylsiloxy)succinate 在 偶氮二异丁腈 、 Eu(fod)3 作用下， 以 二氯甲烷 为溶剂， 反应 24.0h， 以77%的产率得到(R)-2-Allyl-3-(tert-butyl-dimethyl-silanyloxy)-succinic acid diisopropyl ester
  参考文献：
  名称：

  1,2-Asymmetric induction in radical-mediated allylation of diethyl (2S,3S)-3-bromo-2-oxysuccinates: efficient stereoselectivity enhancement by complexation with Eu(fod)3

  摘要：

  在 Eu(fod)3存在下，用烯丙基三丁基锡对(2S, 3S)-3-溴-2-三甲基硅氧基琥珀酸二乙酯进行烯丙基化反应，发现可得到(2R, 3R)-3-烯丙基-2-三甲基硅氧基琥珀酸二乙酯，且具有很高的非对映选择性[(2R, 3R): (2R, 3S)= 8.6:1]。

  DOI：

  10.1039/c39940000987
• 作为产物：
  描述：

  叔丁基二甲基氯硅烷 、 diisopropyl (2S,3R)-2-bromo-3-hydroxysuccinate 在 咪唑 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 3.0h， 生成 Diisopropyl (2S,3S)-2-bromo-3-(tert-butylmethylsiloxy)succinate
  参考文献：
  名称：

  Stereocontrol in radical-mediated allylation of acyclic α-bromo-β-siloxy esters by complexation with lanthanide shift reagents Ln(fod)₃

  摘要：

  Stereoselectivity in the radical-mediated allylation of alpha-bromo-beta-siloxy esters 2 yielding alpha-allyl-beta-siloxy esters 3 (syn) and 4 (anti) was remarkably affected when the reaction was conducted in the presence of Ln(fod)(3) [= tris-(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyloctane-3,5-dionato)lanthanide]. In the allylation of alpha-bromo-beta-siloxysuccinate esters 2c and 2d affording preferentially syn-diastereoisomers 3c and 3d through chelated transition states a stoichiometric amount of the Lewis acid [Eu(fod)(3) or La(fod)(3)] was required in order to maximize the stereoselectivities, whereas in the reaction of alpha-bromo-beta-siloxybutanoate esters 2g and 2h and alpha-bromo-beta-siloxy-beta-phenylpropanoate ester 2i the effect induced by the coordination of Eu(fod)(3) to the ester group was catalytic.

  DOI：

  10.1039/p19960000389

文献信息

• Stereocontrol in radical-mediated allylation of acyclic α-bromo-β-siloxy esters by complexation with lanthanide shift reagents Ln(fod)₃
  作者：Hajime Nagano、Yukie Kuno、Yuriko Omori、Mayumi Iguchi

  DOI：10.1039/p19960000389

  日期：——

  Stereoselectivity in the radical-mediated allylation of alpha-bromo-beta-siloxy esters 2 yielding alpha-allyl-beta-siloxy esters 3 (syn) and 4 (anti) was remarkably affected when the reaction was conducted in the presence of Ln(fod)(3) [= tris-(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyloctane-3,5-dionato)lanthanide]. In the allylation of alpha-bromo-beta-siloxysuccinate esters 2c and 2d affording preferentially syn-diastereoisomers 3c and 3d through chelated transition states a stoichiometric amount of the Lewis acid [Eu(fod)(3) or La(fod)(3)] was required in order to maximize the stereoselectivities, whereas in the reaction of alpha-bromo-beta-siloxybutanoate esters 2g and 2h and alpha-bromo-beta-siloxy-beta-phenylpropanoate ester 2i the effect induced by the coordination of Eu(fod)(3) to the ester group was catalytic.
• 1,2-Asymmetric induction in radical-mediated allylation of diethyl (2S,3S)-3-bromo-2-oxysuccinates: efficient stereoselectivity enhancement by complexation with Eu(fod)3
  作者：Hajime Nagano、Yukie Kuno

  DOI：10.1039/c39940000987

  日期：——

  Allylation of diethyl (2S, 3S)-3-bromo-2-trimethylsilyloxysuccinate with allyltributyltin in the presence of Eu(fod)3 was found to give diethyl (2R, 3R)-3-allyl-2-trimethylsilyloxysuccinate with high diastereoselectivity [(2R, 3R): (2R, 3S)= 8.6:1].

  在 Eu(fod)3存在下，用烯丙基三丁基锡对(2S, 3S)-3-溴-2-三甲基硅氧基琥珀酸二乙酯进行烯丙基化反应，发现可得到(2R, 3R)-3-烯丙基-2-三甲基硅氧基琥珀酸二乙酯，且具有很高的非对映选择性[(2R, 3R): (2R, 3S)= 8.6:1]。