methyl (1S,2S,5R)-4-<<(tert-butyldiphenylsilyl)oxy>methyl>-1-hydroxy-5-methyl-2-<2'-methyl-3'-<(tert-butyldimethylsilyl)oxy>-1'(E)-propen-1'-yl>3-cyclohexene-1-carboxylate | 146983-24-6

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: methyl (1S,2S,5R)-4-<<(tert-butyldiphenylsilyl)oxy>methyl>-1-hydroxy-5-methyl-2-<2'-methyl-3'-<(tert-butyldimethylsilyl)oxy>-1'(E)-propen-1'-yl>3-cyclohexene-1-carboxylate
• 英文别名: methyl (1S,2R,5R)-2-[(E)-3-[tert-butyl(dimethyl)silyl]oxy-2-methylprop-1-enyl]-4-[[tert-butyl(diphenyl)silyl]oxymethyl]-1-hydroxy-5-methylcyclohex-3-ene-1-carboxylate
• CAS: 146983-24-6
• 化学式: C₃₆H₅₄O₅Si₂
• 分子量: 622.993
• InChiKey: YGEUVVGEUFQGOX-QRRHFFFISA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.02
• 重原子数：
  43
• 可旋转键数：
  13
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.53
• 拓扑面积：
  65
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  methyl (1S,2S,5R)-4-<<(tert-butyldiphenylsilyl)oxy>methyl>-1-hydroxy-5-methyl-2-<2'-methyl-3'-<(tert-butyldimethylsilyl)oxy>-1'(E)-propen-1'-yl>3-cyclohexene-1-carboxylate 在 4-二甲氨基吡啶 、 三乙胺 、 lithium hexamethyldisilazane 作用下， 以 二氯甲烷 为溶剂， 反应 1.0h， 生成 (5S,6S,9R)-8-<<(tert-butyldiphenylsilyl)oxy>methyl>-4-(methoxymethoxy)-6-<2'-methyl-3'-<(tert-butyldimethylsilyl)oxy>-1'(E)-propen-1'-yl>-1-oxaspiro<4.5>deca-3,7-dien-2-one
  参考文献：
  名称：

  Kijanolide上半部分的非对映选择性合成

  摘要：

  描述了焦亚醇胺的上半部分（4）的高度非对映选择性的合成。关键步骤是三烯6和手性亲二烯体6的exo和非对映体选择性Diels-Alder反应。

  DOI：

  10.1016/s0040-4039(00)70684-8
• 作为产物：
  描述：

  3-羟基-2-亚甲基丁酸甲酯 在 咪唑 、 manganese(IV) oxide 、 N-溴代丁二酰亚胺(NBS) 、 2,3-二巯基丁二酸 、 2,6-二叔丁基-4-甲基苯酚 、 sodium acetate 、 二异丁基氢化铝 、 potassium carbonate 、 lithium hexamethyldisilazane 作用下， 以 乙醚 、 正己烷 、 二氯甲烷 、 三氯乙烯 、 N,N-二甲基甲酰胺 为溶剂， 反应 181.25h， 生成 methyl (1S,2S,5R)-4-<<(tert-butyldiphenylsilyl)oxy>methyl>-1-hydroxy-5-methyl-2-<2'-methyl-3'-<(tert-butyldimethylsilyl)oxy>-1'(E)-propen-1'-yl>3-cyclohexene-1-carboxylate
  参考文献：
  名称：

  A highly diastereo- and enantioselective synthesis of the top half of kijanolide

  摘要：

  A highly diastereo- and enantioselective synthesis of spirotetronate 4 corresponding to the top half of kijanolide is reported. This synthesis features the novel exo-selective Diels-Alder reaction of triene 6 and the chiral, nonracemic dienophiles (R)-7 and (R)-8. The reaction of 6 and (R)-7 produced a mixture of the desired exo cycloadduct 28, the unexpected exo diastereofacial isomer 29, and a minor amount of the endo cycloadduct 30. However, the Diels-Alder reaction of 6 and dienophile (R)-8 with the more sterically demanding tert-butyl substituent provided a 13-14:1 mixture of exo cycloadduct 38 and endo isomer 39; the exo diastereofacial isomer corresponding to 29 was not observed. Elaboration of 28 and 38 to spirotetronate 4 proceeded by way of the Dieckmann cyclization of alpha-acetoxy ester 5.

  DOI：

  10.1021/jo00060a035

文献信息

• Diastereoselective synthesis of the top half of kijanolide
  作者：William R. Roush、Bradley B. Brown

  DOI：10.1016/s0040-4039(00)70684-8

  日期：1989.1

  A highly diastereoselective synthesis of the top half (4) of kijanolide is described. The key step is the exo and diastereoface selective Diels-Alder reaction of triene 6 and chiral dienophile 6.

  描述了焦亚醇胺的上半部分（4）的高度非对映选择性的合成。关键步骤是三烯6和手性亲二烯体6的exo和非对映体选择性Diels-Alder反应。
• Studies on the synthesis of kijanolide: synthesis of the 2-acyl spirotetronate and investigations concerning the coupling of the top and bottom half fragments
  作者：William R. Roush、Bradley B. Brown

  DOI：10.1021/jo00060a036

  日期：1993.4

  Several studies directed toward the synthesis of kijanolide are described. First, a method for synthesis of the 2-acyl spiro tetronate substructure (15,52) via a Dieckmann cyclization protocol was developed. Second, a 10-step synthesis of 7,7-dibromo-2,4-dimethyl-5-[(tert-butyldiphenylsilyl)oxy]heptenal 35 was developed, making possible the synthesis of a range of kijanolide bottom half precursors via olefination (e.g., 35 + 23 --> 38) and cross-coupling reactions (e.g., 38 --> 19). This solves the problems encountered due to the introduction of the C(7)-hydroxyl group in our previous synthesis of the kijanolide bottom half 2.2a Third, a highly efficient procedure was developed for the coupling of kijanolide top half 8 and dioxinone 38 via an acyl ketene intermediate. This is the most efficient of several methods examined for acylating the hindered tertiary hydroxyl group of 8. Attempts to perform the IMDA reaction of 46, 47 or 9 (R = SiEt3) generated in situ from coupling of 8 and the acyl ketene (20) derived from 42 were thwarted by the unexpected tendency of beta-keto esters like 47 to fragment and decarboxylate via the acyl ketene intermediate at temperatures above 115-degrees-C. 2-Acyl tetronates 53 and 54 were prepared, but these systems decomposed upon attempted IMDA cyclization at temperatures approaching 190-degrees-C.
• A highly diastereo- and enantioselective synthesis of the top half of kijanolide
  作者：William R. Roush、Bradley B. Brown

  DOI：10.1021/jo00060a035

  日期：1993.4

  A highly diastereo- and enantioselective synthesis of spirotetronate 4 corresponding to the top half of kijanolide is reported. This synthesis features the novel exo-selective Diels-Alder reaction of triene 6 and the chiral, nonracemic dienophiles (R)-7 and (R)-8. The reaction of 6 and (R)-7 produced a mixture of the desired exo cycloadduct 28, the unexpected exo diastereofacial isomer 29, and a minor amount of the endo cycloadduct 30. However, the Diels-Alder reaction of 6 and dienophile (R)-8 with the more sterically demanding tert-butyl substituent provided a 13-14:1 mixture of exo cycloadduct 38 and endo isomer 39; the exo diastereofacial isomer corresponding to 29 was not observed. Elaboration of 28 and 38 to spirotetronate 4 proceeded by way of the Dieckmann cyclization of alpha-acetoxy ester 5.