(1S,3aR,4S,5R,7aS)-1-Ethyl-5-<2-(trimethylsilyl)ethynyl>-2,3,3a,4,5,7a-hexahydro-1H-indene-4-carboxylic acid | 153868-81-6

• 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: (1S,3aR,4S,5R,7aS)-1-Ethyl-5-<2-(trimethylsilyl)ethynyl>-2,3,3a,4,5,7a-hexahydro-1H-indene-4-carboxylic acid
• 英文别名: (1S,3aR,4S,5R,7aS)-1-ethyl-5-(2-trimethylsilylethynyl)-2,3,3a,4,5,7a-hexahydro-1H-indene-4-carboxylic acid
• CAS: 153868-81-6
• 化学式: C₁₇H₂₆O₂Si
• 分子量: 290.478
• InChiKey: SYODOEMTJOPNPD-AALSBFMBSA-N

物化性质

• 沸点：
  378.4±41.0 °C(predicted)
• 密度：
  1.03±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.81
• 重原子数：
  20
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.71
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (1S,3aR,4S,5R,7aS)-1-Ethyl-5-<2-(trimethylsilyl)ethynyl>-2,3,3a,4,5,7a-hexahydro-1H-indene-4-carboxylic acid 在 三苯基膦 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 反应 2.33h， 生成 (1S,3aR,4S,5R,7aS)-1-Ethyl-5-<2-(trimethylsilyl)ethynyl>-4-(2-pyrrolylcarbonyl)-2,3,3a,4,5,7a-hexahydro-1H-indene
  参考文献：
  名称：

  Total synthesis of ionophore antibiotic X-14547 A (indanomycin)

  摘要：

  A convergent, enantioselective total synthesis of ionophore antibiotic X-14547A (indanomycin, 1) is described. The dioxanone-to-dihydropyran variant of the lactonic Ireland-Claisen rearrangement establishes the hydropyran nucleus of the ''left wing'' fragment 2. Elaboration to the target synthon utilizes a new methodology for the preparation of stereodefined vinylsilanes (24 --> 25 --> 26) via net S(N)2' coupling of [alpha-(mesyloxy)allyl]silanes with Grignard reagents catalyzed by CuCN. Salient features in the construction of the ''right wing'' subunit 3 include a modification of the Noyori three-component coupling procedure (32 --> 33) and the application,of a retro hetero Diels-Alder/intramolecular Diels-Alder (''mock Claisen'') process (5 --> 39), Palladium-mediated cross Coupling of ''left wing'' and ''right wing'' synthons using Stille's method tolerates a free carboxylic acid and an unprotected acyl pyrrole, affording indanomycin directly in its natural absolute configuration.

  DOI：

  10.1021/jo00081a010
• 作为产物：
  描述：

  ((1S,2R,3S)-2-Chlorocarbonyl-3-ethyl-cyclopentyl)-acetic acid tert-butyl ester 在 trans-benzyl(chloro)-bis(triphenylphosphine)palladium(II) 4-二甲氨基吡啶 、 sodium hydroxide 、 sodium tetrahydroborate 、 cerium(III) chloride 、 达卡巴嗪 、 三乙胺 、 lithium hexamethyldisilazane 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 为溶剂， 反应 71.42h， 生成 (1S,3aR,4S,5R,7aS)-1-Ethyl-5-<2-(trimethylsilyl)ethynyl>-2,3,3a,4,5,7a-hexahydro-1H-indene-4-carboxylic acid
  参考文献：
  名称：

  Total synthesis of ionophore antibiotic X-14547 A (indanomycin)

  摘要：

  A convergent, enantioselective total synthesis of ionophore antibiotic X-14547A (indanomycin, 1) is described. The dioxanone-to-dihydropyran variant of the lactonic Ireland-Claisen rearrangement establishes the hydropyran nucleus of the ''left wing'' fragment 2. Elaboration to the target synthon utilizes a new methodology for the preparation of stereodefined vinylsilanes (24 --> 25 --> 26) via net S(N)2' coupling of [alpha-(mesyloxy)allyl]silanes with Grignard reagents catalyzed by CuCN. Salient features in the construction of the ''right wing'' subunit 3 include a modification of the Noyori three-component coupling procedure (32 --> 33) and the application,of a retro hetero Diels-Alder/intramolecular Diels-Alder (''mock Claisen'') process (5 --> 39), Palladium-mediated cross Coupling of ''left wing'' and ''right wing'' synthons using Stille's method tolerates a free carboxylic acid and an unprotected acyl pyrrole, affording indanomycin directly in its natural absolute configuration.

  DOI：

  10.1021/jo00081a010

文献信息

• Total synthesis of ionophore antibiotic X-14547 A (indanomycin)
  作者：Steven D. Burke、Anthony D. Piscopio、Michael E. Kort、Mark A. Matulenko、Marshall H. Parker、David M. Armistead、K. Shankaran

  DOI：10.1021/jo00081a010

  日期：1994.1

  A convergent, enantioselective total synthesis of ionophore antibiotic X-14547A (indanomycin, 1) is described. The dioxanone-to-dihydropyran variant of the lactonic Ireland-Claisen rearrangement establishes the hydropyran nucleus of the ''left wing'' fragment 2. Elaboration to the target synthon utilizes a new methodology for the preparation of stereodefined vinylsilanes (24 --> 25 --> 26) via net S(N)2' coupling of [alpha-(mesyloxy)allyl]silanes with Grignard reagents catalyzed by CuCN. Salient features in the construction of the ''right wing'' subunit 3 include a modification of the Noyori three-component coupling procedure (32 --> 33) and the application,of a retro hetero Diels-Alder/intramolecular Diels-Alder (''mock Claisen'') process (5 --> 39), Palladium-mediated cross Coupling of ''left wing'' and ''right wing'' synthons using Stille's method tolerates a free carboxylic acid and an unprotected acyl pyrrole, affording indanomycin directly in its natural absolute configuration.