5.10.5. tert-butyl {(4R,6E,8S,10E,12S,14R,16S)-4,8,12,14,16-pentakis{[tert-butyl(dimethyl)silyl]oxy}-18-[(4-methoxybenzyl)oxy]octadeca-6,10-dien-1-yl}carbamate | 1329019-92-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 5.10.5. tert-butyl {(4R,6E,8S,10E,12S,14R,16S)-4,8,12,14,16-pentakis{[tert-butyl(dimethyl)silyl]oxy}-18-[(4-methoxybenzyl)oxy]octadeca-6,10-dien-1-yl}carbamate
• 英文别名: tert-butyl N-[(4R,6E,8S,10E,12S,14R,16S)-4,8,12,14,16-pentakis[[tert-butyl(dimethyl)silyl]oxy]-18-[(4-methoxyphenyl)methoxy]octadeca-6,10-dienyl]carbamate
• CAS: 1329019-92-2
• 化学式: C₆₁H₁₂₁NO₉Si₅
• 分子量: 1153.06
• InChiKey: OZUYQFKZKZINIP-ICCDWSBLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  18.53
• 重原子数：
  76
• 可旋转键数：
  37
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.82
• 拓扑面积：
  103
• 氢给体数：
  1
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  5.10.5. tert-butyl {(4R,6E,8S,10E,12S,14R,16S)-4,8,12,14,16-pentakis{[tert-butyl(dimethyl)silyl]oxy}-18-[(4-methoxybenzyl)oxy]octadeca-6,10-dien-1-yl}carbamate 在 2,3-二氯-5,6-二氰基-1,4-苯醌 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 以80%的产率得到tert-butyl((4R,6E,8S,10E,12S,14R,16S)-4,8,12,14,16-pentakis{[tert-butyl(dimethyl)silyl]oxy}-18-hydroxyoctadeca-6,10-dien-1-yl)carbamate
  参考文献：
  名称：

  N-乙酰基二氢四纤素甲酯的对映选择性和非对映选择性合成

  摘要：

  描述了 N-乙酰基二氢四纤素甲酯 (34) 的高度非对映选择性合成。该合成具有三个对映选择性双烯丙基硼化反应和一个分子内氢化硅烷化/Fleming-Tamao 氧化序列，以建立 34 个带羟基的立体中心中的七个。特别值得注意的是使用试剂 3 的 2 和 7 的片段组装双烯丙基硼化反应，它提供具有 >20:1 非对映选择性的高级中间体 6。

  DOI：

  10.1021/ja401918r
• 作为产物：
  描述：

  tert-butyl ((4R)-4-{[tert-butyl(dimethyl)silyl]oxy}hept-6-en-1-yl)carbamate 在 咪唑 、 三甲基氯硅烷 、 Hoveyda-Grubbs catalyst second generation 、 lithium-B-H2-(10R)-trimethylsilyl-9-borabicyclo[3.3.2]decane 作用下， 以 二氯甲烷 、 甲苯 为溶剂， 反应 4.0h， 生成 5.10.5. tert-butyl {(4R,6E,8S,10E,12S,14R,16S)-4,8,12,14,16-pentakis{[tert-butyl(dimethyl)silyl]oxy}-18-[(4-methoxybenzyl)oxy]octadeca-6,10-dien-1-yl}carbamate
  参考文献：
  名称：

  Development of a double allylboration reagent targeting 1,5-syn-(E)-diols: application to the synthesis of the C(23)–C(40) fragment of tetrafibricin

  摘要：

  Interest in the synthesis of the C(23) C(40) fragment 2 of tetrafibricin prompted us to develop a new method for the synthesis of 1,5-syn-(E)-diols. Toward this end, the kinetically controlled hydroboration of allenes 6, 33, ent-39, 42, and 45 with the Soderquist borane 25R were studied. Tetrabutylammonium allenyltrifluoroborate 45 gave superior results and was utilized in a double allylboration sequence with two different aldehydes to provide the targeted 1,5-syn-(E)-diols in generally high yields (72-98%), and with high enantioselectivity (>95% ee), diastereoselectivity (dr >20:1), and (E)/(Z) selectivity (>20:1). This new method was applied to the synthesis of the C(23) C(40) fragment 2 of tetrafibricin. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2011.06.008

文献信息

• Development of a double allylboration reagent targeting 1,5-syn-(E)-diols: application to the synthesis of the C(23)–C(40) fragment of tetrafibricin
  作者：Philippe Nuhant、Jeremy Kister、Ricardo Lira、Achim Sorg、William R. Roush

  DOI：10.1016/j.tet.2011.06.008

  日期：2011.9

  Interest in the synthesis of the C(23) C(40) fragment 2 of tetrafibricin prompted us to develop a new method for the synthesis of 1,5-syn-(E)-diols. Toward this end, the kinetically controlled hydroboration of allenes 6, 33, ent-39, 42, and 45 with the Soderquist borane 25R were studied. Tetrabutylammonium allenyltrifluoroborate 45 gave superior results and was utilized in a double allylboration sequence with two different aldehydes to provide the targeted 1,5-syn-(E)-diols in generally high yields (72-98%), and with high enantioselectivity (>95% ee), diastereoselectivity (dr >20:1), and (E)/(Z) selectivity (>20:1). This new method was applied to the synthesis of the C(23) C(40) fragment 2 of tetrafibricin. (C) 2011 Elsevier Ltd. All rights reserved.
• Enantio- and Diastereoselective Synthesis of <i>N</i>-Acetyl Dihydrotetrafibricin Methyl Ester
  作者：Philippe Nuhant、William R. Roush

  DOI：10.1021/ja401918r

  日期：2013.4.10

  methyl ester (34) is described. The synthesis features three enantioselective double allylboration reactions and an intramolecular hydrosilylation/Fleming-Tamao oxidation sequence to establish seven of the hydroxy-bearing stereocenters of 34. Especially noteworthy is the fragment-assembly double allyboration reaction of 2 and 7 using reagent 3, which provides the advanced intermediate 6 with >20:1 diastereoselectivity

  描述了 N-乙酰基二氢四纤素甲酯 (34) 的高度非对映选择性合成。该合成具有三个对映选择性双烯丙基硼化反应和一个分子内氢化硅烷化/Fleming-Tamao 氧化序列，以建立 34 个带羟基的立体中心中的七个。特别值得注意的是使用试剂 3 的 2 和 7 的片段组装双烯丙基硼化反应，它提供具有 >20:1 非对映选择性的高级中间体 6。